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mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Aparencia</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_gl.wikipedia.org&uselang=gl" class=""><span>Doazóns</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Crear_unha_conta&returnto=Metro" title="É recomendable que cree unha conta e acceda ao sistema, se ben non é obrigatorio" class=""><span>Crear unha conta</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Especial:Iniciar_sesi%C3%B3n&returnto=Metro" title="É recomendable que se rexistre, se ben non é obrigatorio [o]" accesskey="o" class=""><span>Acceder ao sistema</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Máis opcións" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Ferramentas persoais" > <label 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id="mw-panel-toc" aria-label="Contidos" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contidos</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">mover á barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">agochar</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inicio</div> </a> </li> <li id="toc-Etimoloxía" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Etimoloxía"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Etimoloxía</span> </div> </a> <ul id="toc-Etimoloxía-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Múltiplos_e_submúltiplos" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Múltiplos_e_submúltiplos"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Múltiplos e submúltiplos</span> </div> </a> <ul id="toc-Múltiplos_e_submúltiplos-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Equivalencias_noutras_unidades" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Equivalencias_noutras_unidades"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Equivalencias noutras unidades</span> </div> </a> <ul id="toc-Equivalencias_noutras_unidades-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Historia_da_definición_do_metro" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Historia_da_definición_do_metro"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Historia da definición do metro</span> </div> </a> <button aria-controls="toc-Historia_da_definición_do_metro-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Mostrar ou agochar a subsección "Historia da definición do metro"</span> </button> <ul id="toc-Historia_da_definición_do_metro-sublist" class="vector-toc-list"> <li id="toc-Primeiras_medicións" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Primeiras_medicións"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Primeiras medicións</span> </div> </a> <ul id="toc-Primeiras_medicións-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Meridiano_terrestre" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Meridiano_terrestre"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Meridiano terrestre</span> </div> </a> <ul id="toc-Meridiano_terrestre-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Barra_de_platino_e_iridio" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Barra_de_platino_e_iridio"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.3</span> <span>Barra de platino e iridio</span> </div> </a> <ul id="toc-Barra_de_platino_e_iridio-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Lonxitude_de_onda" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Lonxitude_de_onda"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.4</span> <span>Lonxitude de onda</span> </div> </a> <ul id="toc-Lonxitude_de_onda-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Velocidade_da_luz" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Velocidade_da_luz"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.5</span> <span>Velocidade da luz</span> </div> </a> <ul id="toc-Velocidade_da_luz-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Liña_de_tempo" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Liña_de_tempo"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.6</span> <span>Liña de tempo</span> </div> </a> <ul id="toc-Liña_de_tempo-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Unidades_derivadas" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Unidades_derivadas"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Unidades derivadas</span> </div> </a> <ul id="toc-Unidades_derivadas-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Notas" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notas"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Notas</span> </div> </a> <ul id="toc-Notas-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Véxase_tamén" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Véxase_tamén"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Véxase tamén</span> </div> </a> <button aria-controls="toc-Véxase_tamén-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Mostrar ou agochar a subsección "Véxase tamén"</span> </button> <ul id="toc-Véxase_tamén-sublist" class="vector-toc-list"> <li id="toc-Bibliografía" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Bibliografía"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.1</span> <span>Bibliografía</span> </div> </a> <ul id="toc-Bibliografía-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ligazóns_externas" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Ligazóns_externas"> <div class="vector-toc-text"> <span class="vector-toc-numb">7.2</span> <span>Ligazóns externas</span> </div> </a> <ul id="toc-Ligazóns_externas-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contidos" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostrar ou agochar a táboa de contidos" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostrar ou agochar a táboa de contidos</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Metro</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ir a un artigo noutra lingua. Dispoñible en 170 linguas" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-170" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">170 linguas</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Meter" title="Meter – afrikaans" lang="af" hreflang="af" data-title="Meter" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Meter" title="Meter – alemán suízo" lang="gsw" hreflang="gsw" data-title="Meter" data-language-autonym="Alemannisch" data-language-local-name="alemán suízo" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%88%9C%E1%89%B5%E1%88%AD" title="ሜትር – amhárico" lang="am" hreflang="am" data-title="ሜትር" data-language-autonym="አማርኛ" data-language-local-name="amhárico" class="interlanguage-link-target"><span>አማርኛ</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Metro" title="Metro – aragonés" lang="an" hreflang="an" data-title="Metro" data-language-autonym="Aragonés" data-language-local-name="aragonés" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ann mw-list-item"><a href="https://ann.wikipedia.org/wiki/Mita" title="Mita – obolo" lang="ann" hreflang="ann" data-title="Mita" data-language-autonym="Obolo" data-language-local-name="obolo" class="interlanguage-link-target"><span>Obolo</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%AA%D8%B1" title="متر – árabe" lang="ar" hreflang="ar" data-title="متر" data-language-autonym="العربية" data-language-local-name="árabe" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D9%85%D9%8A%D8%AA%D8%B1%D9%88_(%D8%B9%D8%A8%D8%B1%D8%A9)" title="ميترو (عبرة) – Moroccan Arabic" lang="ary" hreflang="ary" data-title="ميترو (عبرة)" data-language-autonym="الدارجة" data-language-local-name="Moroccan Arabic" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D9%85%D8%AA%D8%B1" title="متر – Egyptian Arabic" lang="arz" hreflang="arz" data-title="متر" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%AE%E0%A6%BF%E0%A6%9F%E0%A6%BE%E0%A7%B0" title="মিটাৰ – assamés" lang="as" hreflang="as" data-title="মিটাৰ" data-language-autonym="অসমীয়া" data-language-local-name="assamés" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Metru" title="Metru – asturiano" lang="ast" hreflang="ast" data-title="Metru" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-av mw-list-item"><a href="https://av.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – avar" lang="av" hreflang="av" data-title="Метр" data-language-autonym="Авар" data-language-local-name="avar" class="interlanguage-link-target"><span>Авар</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Metr" title="Metr – acerbaixano" lang="az" hreflang="az" data-title="Metr" data-language-autonym="Azərbaycanca" data-language-local-name="acerbaixano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D9%85%D8%AA%D8%B1" title="متر – South Azerbaijani" lang="azb" hreflang="azb" data-title="متر" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – baxkir" lang="ba" hreflang="ba" data-title="Метр" data-language-autonym="Башҡортса" data-language-local-name="baxkir" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/M%C3%A9ter" title="Méter – balinés" lang="ban" hreflang="ban" data-title="Méter" data-language-autonym="Basa Bali" data-language-local-name="balinés" class="interlanguage-link-target"><span>Basa Bali</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/Metros" title="Metros – Samogitian" lang="sgs" hreflang="sgs" data-title="Metros" data-language-autonym="Žemaitėška" data-language-local-name="Samogitian" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – belaruso" lang="be" hreflang="be" data-title="Метр" data-language-autonym="Беларуская" data-language-local-name="belaruso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9C%D1%8D%D1%82%D0%B0%D1%80" title="Мэтар – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Мэтар" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%8A%D1%80" title="Метър – búlgaro" lang="bg" hreflang="bg" data-title="Метър" data-language-autonym="Български" data-language-local-name="búlgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%AE%E0%A5%80%E0%A4%9F%E0%A4%B0" title="मीटर – Bhojpuri" lang="bh" hreflang="bh" data-title="मीटर" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bjn mw-list-item"><a href="https://bjn.wikipedia.org/wiki/Meter" title="Meter – Banjar" lang="bjn" hreflang="bjn" data-title="Meter" data-language-autonym="Banjar" data-language-local-name="Banjar" class="interlanguage-link-target"><span>Banjar</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AE%E0%A6%BF%E0%A6%9F%E0%A6%BE%E0%A6%B0" title="মিটার – bengalí" lang="bn" hreflang="bn" data-title="মিটার" data-language-autonym="বাংলা" data-language-local-name="bengalí" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%A6%E0%BE%A8%E0%BD%B2%E0%BC%8D" title="སྨི། – tibetano" lang="bo" hreflang="bo" data-title="སྨི།" data-language-autonym="བོད་ཡིག" data-language-local-name="tibetano" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Metr" title="Metr – bretón" lang="br" hreflang="br" data-title="Metr" data-language-autonym="Brezhoneg" data-language-local-name="bretón" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Metar" title="Metar – bosníaco" lang="bs" hreflang="bs" data-title="Metar" data-language-autonym="Bosanski" data-language-local-name="bosníaco" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Metre" title="Metre – catalán" lang="ca" hreflang="ca" data-title="Metre" data-language-autonym="Català" data-language-local-name="catalán" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/G%C5%ADng-chi%C3%B3h" title="Gŭng-chióh – Mindong" lang="cdo" hreflang="cdo" data-title="Gŭng-chióh" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-ce mw-list-item"><a href="https://ce.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – checheno" lang="ce" hreflang="ce" data-title="Метр" data-language-autonym="Нохчийн" data-language-local-name="checheno" class="interlanguage-link-target"><span>Нохчийн</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D9%85%DB%95%D8%AA%D8%B1" title="مەتر – kurdo central" lang="ckb" hreflang="ckb" data-title="مەتر" data-language-autonym="کوردی" data-language-local-name="kurdo central" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Metr" title="Metr – checo" lang="cs" hreflang="cs" data-title="Metr" data-language-autonym="Čeština" data-language-local-name="checo" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cu mw-list-item"><a href="https://cu.wikipedia.org/wiki/%D0%9C%D1%94%D1%82%D1%80%D0%BE" title="Мєтро – eslavo eclesiástico" lang="cu" hreflang="cu" data-title="Мєтро" data-language-autonym="Словѣньскъ / ⰔⰎⰑⰂⰡⰐⰠⰔⰍⰟ" data-language-local-name="eslavo eclesiástico" class="interlanguage-link-target"><span>Словѣньскъ / ⰔⰎⰑⰂⰡⰐⰠⰔⰍⰟ</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – chuvaxo" lang="cv" hreflang="cv" data-title="Метр" data-language-autonym="Чӑвашла" data-language-local-name="chuvaxo" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Metr" title="Metr – galés" lang="cy" hreflang="cy" data-title="Metr" data-language-autonym="Cymraeg" data-language-local-name="galés" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Meter" title="Meter – dinamarqués" lang="da" hreflang="da" data-title="Meter" data-language-autonym="Dansk" data-language-local-name="dinamarqués" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Meter" title="Meter – alemán" lang="de" hreflang="de" data-title="Meter" data-language-autonym="Deutsch" data-language-local-name="alemán" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-dv mw-list-item"><a href="https://dv.wikipedia.org/wiki/%DE%89%DE%A9%DE%93%DE%A6%DE%83%DE%AA" title="މީޓަރު – divehi" lang="dv" hreflang="dv" data-title="މީޓަރު" data-language-autonym="ދިވެހިބަސް" data-language-local-name="divehi" class="interlanguage-link-target"><span>ދިވެހިބަސް</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9C%CE%AD%CF%84%CF%81%CE%BF" title="Μέτρο – grego" lang="el" hreflang="el" data-title="Μέτρο" data-language-autonym="Ελληνικά" data-language-local-name="grego" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-eml mw-list-item"><a href="https://eml.wikipedia.org/wiki/M%C3%A9ter" title="Méter – Emiliano-Romagnolo" lang="egl" hreflang="egl" data-title="Méter" data-language-autonym="Emiliàn e rumagnòl" data-language-local-name="Emiliano-Romagnolo" class="interlanguage-link-target"><span>Emiliàn e rumagnòl</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Metre" title="Metre – inglés" lang="en" hreflang="en" data-title="Metre" data-language-autonym="English" data-language-local-name="inglés" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Metro" title="Metro – esperanto" lang="eo" hreflang="eo" data-title="Metro" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Metro" title="Metro – español" lang="es" hreflang="es" data-title="Metro" data-language-autonym="Español" data-language-local-name="español" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Meeter" title="Meeter – estoniano" lang="et" hreflang="et" data-title="Meeter" data-language-autonym="Eesti" data-language-local-name="estoniano" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Metro" title="Metro – éuscaro" lang="eu" hreflang="eu" data-title="Metro" data-language-autonym="Euskara" data-language-local-name="éuscaro" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-ext mw-list-item"><a href="https://ext.wikipedia.org/wiki/Metru" title="Metru – Extremaduran" lang="ext" hreflang="ext" data-title="Metru" data-language-autonym="Estremeñu" data-language-local-name="Extremaduran" class="interlanguage-link-target"><span>Estremeñu</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%85%D8%AA%D8%B1" title="متر – persa" lang="fa" hreflang="fa" data-title="متر" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Metri" title="Metri – finés" lang="fi" hreflang="fi" data-title="Metri" data-language-autonym="Suomi" data-language-local-name="finés" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/M%C3%A8tre" title="Mètre – francés" lang="fr" hreflang="fr" data-title="Mètre" data-language-autonym="Français" data-language-local-name="francés" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Meeter" title="Meeter – frisón setentrional" lang="frr" hreflang="frr" data-title="Meeter" data-language-autonym="Nordfriisk" data-language-local-name="frisón setentrional" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-fur mw-list-item"><a href="https://fur.wikipedia.org/wiki/Metri" title="Metri – friulano" lang="fur" hreflang="fur" data-title="Metri" data-language-autonym="Furlan" data-language-local-name="friulano" class="interlanguage-link-target"><span>Furlan</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Meter" title="Meter – frisón occidental" lang="fy" hreflang="fy" data-title="Meter" data-language-autonym="Frysk" data-language-local-name="frisón occidental" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/M%C3%A9adar" title="Méadar – irlandés" lang="ga" hreflang="ga" data-title="Méadar" data-language-autonym="Gaeilge" data-language-local-name="irlandés" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gan mw-list-item"><a href="https://gan.wikipedia.org/wiki/%E7%B1%B3" title="米 – Gan" lang="gan" hreflang="gan" data-title="米" data-language-autonym="贛語" data-language-local-name="Gan" class="interlanguage-link-target"><span>贛語</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Meatair" title="Meatair – gaélico escocés" lang="gd" hreflang="gd" data-title="Meatair" data-language-autonym="Gàidhlig" data-language-local-name="gaélico escocés" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wikipedia.org/wiki/Metro" title="Metro – guaraní" lang="gn" hreflang="gn" data-title="Metro" data-language-autonym="Avañe'ẽ" data-language-local-name="guaraní" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-gu mw-list-item"><a href="https://gu.wikipedia.org/wiki/%E0%AA%AE%E0%AB%80%E0%AA%9F%E0%AA%B0" title="મીટર – guxarati" lang="gu" hreflang="gu" data-title="મીટર" data-language-autonym="ગુજરાતી" data-language-local-name="guxarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-ha mw-list-item"><a href="https://ha.wikipedia.org/wiki/Mita" title="Mita – hausa" lang="ha" hreflang="ha" data-title="Mita" data-language-autonym="Hausa" data-language-local-name="hausa" class="interlanguage-link-target"><span>Hausa</span></a></li><li class="interlanguage-link interwiki-hak mw-list-item"><a href="https://hak.wikipedia.org/wiki/K%C3%BBng-chhak" title="Kûng-chhak – Hakka Chinese" lang="hak" hreflang="hak" data-title="Kûng-chhak" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="Hakka Chinese" class="interlanguage-link-target"><span>客家語 / Hak-kâ-ngî</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%98%D7%A8" title="מטר – hebreo" lang="he" hreflang="he" data-title="מטר" data-language-autonym="עברית" data-language-local-name="hebreo" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AE%E0%A5%80%E0%A4%9F%E0%A4%B0" title="मीटर – hindi" lang="hi" hreflang="hi" data-title="मीटर" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Metre" title="Metre – Fiji Hindi" lang="hif" hreflang="hif" data-title="Metre" data-language-autonym="Fiji Hindi" data-language-local-name="Fiji Hindi" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Metar" title="Metar – croata" lang="hr" hreflang="hr" data-title="Metar" data-language-autonym="Hrvatski" data-language-local-name="croata" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hsb mw-list-item"><a href="https://hsb.wikipedia.org/wiki/Meter" title="Meter – alto sorbio" lang="hsb" hreflang="hsb" data-title="Meter" data-language-autonym="Hornjoserbsce" data-language-local-name="alto sorbio" class="interlanguage-link-target"><span>Hornjoserbsce</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/M%C3%A8t" title="Mèt – crioulo haitiano" lang="ht" hreflang="ht" data-title="Mèt" data-language-autonym="Kreyòl ayisyen" data-language-local-name="crioulo haitiano" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/M%C3%A9ter" title="Méter – húngaro" lang="hu" hreflang="hu" data-title="Méter" data-language-autonym="Magyar" data-language-local-name="húngaro" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%84%D5%A5%D5%BF%D6%80" title="Մետր – armenio" lang="hy" hreflang="hy" data-title="Մետր" data-language-autonym="Հայերեն" data-language-local-name="armenio" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hyw mw-list-item"><a href="https://hyw.wikipedia.org/wiki/%D5%84%D5%A5%D5%A9%D6%80" title="Մեթր – Western Armenian" lang="hyw" hreflang="hyw" data-title="Մեթր" data-language-autonym="Արեւմտահայերէն" data-language-local-name="Western Armenian" class="interlanguage-link-target"><span>Արեւմտահայերէն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Metro" title="Metro – interlingua" lang="ia" hreflang="ia" data-title="Metro" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Meter" title="Meter – indonesio" lang="id" hreflang="id" data-title="Meter" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesio" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ie mw-list-item"><a href="https://ie.wikipedia.org/wiki/Metre" title="Metre – Interlingue" lang="ie" hreflang="ie" data-title="Metre" data-language-autonym="Interlingue" data-language-local-name="Interlingue" class="interlanguage-link-target"><span>Interlingue</span></a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Metro" title="Metro – ilocano" lang="ilo" hreflang="ilo" data-title="Metro" data-language-autonym="Ilokano" data-language-local-name="ilocano" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Metro" title="Metro – ido" lang="io" hreflang="io" data-title="Metro" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Metri" title="Metri – islandés" lang="is" hreflang="is" data-title="Metri" data-language-autonym="Íslenska" data-language-local-name="islandés" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Metro" title="Metro – italiano" lang="it" hreflang="it" data-title="Metro" data-language-autonym="Italiano" data-language-local-name="italiano" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja badge-Q17437798 badge-goodarticle mw-list-item" title="artigo bo"><a href="https://ja.wikipedia.org/wiki/%E3%83%A1%E3%83%BC%E3%83%88%E3%83%AB" title="メートル – xaponés" lang="ja" hreflang="ja" data-title="メートル" data-language-autonym="日本語" data-language-local-name="xaponés" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jam mw-list-item"><a href="https://jam.wikipedia.org/wiki/Miita" title="Miita – Jamaican Creole English" lang="jam" hreflang="jam" data-title="Miita" data-language-autonym="Patois" data-language-local-name="Jamaican Creole English" class="interlanguage-link-target"><span>Patois</span></a></li><li class="interlanguage-link interwiki-jbo mw-list-item"><a href="https://jbo.wikipedia.org/wiki/mitre" title="mitre – lojban" lang="jbo" hreflang="jbo" data-title="mitre" data-language-autonym="La .lojban." data-language-local-name="lojban" class="interlanguage-link-target"><span>La .lojban.</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/M%C3%A8ter" title="Mèter – xavanés" lang="jv" hreflang="jv" data-title="Mèter" data-language-autonym="Jawa" data-language-local-name="xavanés" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9B%E1%83%94%E1%83%A2%E1%83%A0%E1%83%98" title="მეტრი – xeorxiano" lang="ka" hreflang="ka" data-title="მეტრი" data-language-autonym="ქართული" data-language-local-name="xeorxiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kaa mw-list-item"><a href="https://kaa.wikipedia.org/wiki/Metr" title="Metr – Kara-Kalpak" lang="kaa" hreflang="kaa" data-title="Metr" data-language-autonym="Qaraqalpaqsha" data-language-local-name="Kara-Kalpak" class="interlanguage-link-target"><span>Qaraqalpaqsha</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Mitra" title="Mitra – cabila" lang="kab" hreflang="kab" data-title="Mitra" data-language-autonym="Taqbaylit" data-language-local-name="cabila" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-kcg mw-list-item"><a href="https://kcg.wikipedia.org/wiki/Mita_(cung)" title="Mita (cung) – tyap" lang="kcg" hreflang="kcg" data-title="Mita (cung)" data-language-autonym="Tyap" data-language-local-name="tyap" class="interlanguage-link-target"><span>Tyap</span></a></li><li class="interlanguage-link interwiki-kge mw-list-item"><a href="https://kge.wikipedia.org/wiki/Meter_(m)" title="Meter (m) – Komering" lang="kge" hreflang="kge" data-title="Meter (m)" data-language-autonym="Kumoring" data-language-local-name="Komering" class="interlanguage-link-target"><span>Kumoring</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – kazako" lang="kk" hreflang="kk" data-title="Метр" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%AE%E0%B3%80%E0%B2%9F%E0%B2%B0%E0%B3%8D" title="ಮೀಟರ್ – kannará" lang="kn" hreflang="kn" data-title="ಮೀಟರ್" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannará" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%AF%B8%ED%84%B0" title="미터 – coreano" lang="ko" hreflang="ko" data-title="미터" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-krc mw-list-item"><a href="https://krc.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – carachaio-bálcara" lang="krc" hreflang="krc" data-title="Метр" data-language-autonym="Къарачай-малкъар" data-language-local-name="carachaio-bálcara" class="interlanguage-link-target"><span>Къарачай-малкъар</span></a></li><li class="interlanguage-link interwiki-ksh mw-list-item"><a href="https://ksh.wikipedia.org/wiki/L%C3%A4ng" title="Läng – kölsch" lang="ksh" hreflang="ksh" data-title="Läng" data-language-autonym="Ripoarisch" data-language-local-name="kölsch" class="interlanguage-link-target"><span>Ripoarisch</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Metre" title="Metre – kurdo" lang="ku" hreflang="ku" data-title="Metre" data-language-autonym="Kurdî" data-language-local-name="kurdo" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Meter" title="Meter – córnico" lang="kw" hreflang="kw" data-title="Meter" data-language-autonym="Kernowek" data-language-local-name="córnico" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – kirguiz" lang="ky" hreflang="ky" data-title="Метр" data-language-autonym="Кыргызча" data-language-local-name="kirguiz" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Metrum" title="Metrum – latín" lang="la" hreflang="la" data-title="Metrum" data-language-autonym="Latina" data-language-local-name="latín" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Meter" title="Meter – luxemburgués" lang="lb" hreflang="lb" data-title="Meter" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxemburgués" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lez mw-list-item"><a href="https://lez.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – lezguio" lang="lez" hreflang="lez" data-title="Метр" data-language-autonym="Лезги" data-language-local-name="lezguio" class="interlanguage-link-target"><span>Лезги</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Meter" title="Meter – limburgués" lang="li" hreflang="li" data-title="Meter" data-language-autonym="Limburgs" data-language-local-name="limburgués" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Meter" title="Meter – Lombard" lang="lmo" hreflang="lmo" data-title="Meter" data-language-autonym="Lombard" data-language-local-name="Lombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-ln mw-list-item"><a href="https://ln.wikipedia.org/wiki/M%C9%9Bt%C9%9Bl%C9%9B" title="Mɛtɛlɛ – lingala" lang="ln" hreflang="ln" data-title="Mɛtɛlɛ" data-language-autonym="Lingála" data-language-local-name="lingala" class="interlanguage-link-target"><span>Lingála</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BB%81%E0%BA%A1%E0%BA%B1%E0%BA%94" title="ແມັດ – laosiano" lang="lo" hreflang="lo" data-title="ແມັດ" data-language-autonym="ລາວ" data-language-local-name="laosiano" class="interlanguage-link-target"><span>ລາວ</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Metras" title="Metras – lituano" lang="lt" hreflang="lt" data-title="Metras" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Metrs" title="Metrs – letón" lang="lv" hreflang="lv" data-title="Metrs" data-language-autonym="Latviešu" data-language-local-name="letón" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Metatra" title="Metatra – malgaxe" lang="mg" hreflang="mg" data-title="Metatra" data-language-autonym="Malagasy" data-language-local-name="malgaxe" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-min mw-list-item"><a href="https://min.wikipedia.org/wiki/Meter" title="Meter – minangkabau" lang="min" hreflang="min" data-title="Meter" data-language-autonym="Minangkabau" data-language-local-name="minangkabau" class="interlanguage-link-target"><span>Minangkabau</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D0%B0%D1%80" title="Метар – macedonio" lang="mk" hreflang="mk" data-title="Метар" data-language-autonym="Македонски" data-language-local-name="macedonio" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AE%E0%B5%80%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B5%BC" title="മീറ്റർ – malabar" lang="ml" hreflang="ml" data-title="മീറ്റർ" data-language-autonym="മലയാളം" data-language-local-name="malabar" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – mongol" lang="mn" hreflang="mn" data-title="Метр" data-language-autonym="Монгол" data-language-local-name="mongol" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mnw mw-list-item"><a href="https://mnw.wikipedia.org/wiki/%E1%80%99%E1%80%B3%E1%80%90%E1%80%AC" title="မဳတာ – Mon" lang="mnw" hreflang="mnw" data-title="မဳတာ" data-language-autonym="ဘာသာမန်" data-language-local-name="Mon" class="interlanguage-link-target"><span>ဘာသာမန်</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%AE%E0%A5%80%E0%A4%9F%E0%A4%B0" title="मीटर – marathi" lang="mr" hreflang="mr" data-title="मीटर" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Meter" title="Meter – malaio" lang="ms" hreflang="ms" data-title="Meter" data-language-autonym="Bahasa Melayu" data-language-local-name="malaio" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mt mw-list-item"><a href="https://mt.wikipedia.org/wiki/Metru" title="Metru – maltés" lang="mt" hreflang="mt" data-title="Metru" data-language-autonym="Malti" data-language-local-name="maltés" class="interlanguage-link-target"><span>Malti</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%99%E1%80%AE%E1%80%90%E1%80%AC" title="မီတာ – birmano" lang="my" hreflang="my" data-title="မီတာ" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmano" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Meter" title="Meter – baixo alemán" lang="nds" hreflang="nds" data-title="Meter" data-language-autonym="Plattdüütsch" data-language-local-name="baixo alemán" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%AE%E0%A4%BF%E0%A4%9F%E0%A4%B0" title="मिटर – nepalí" lang="ne" hreflang="ne" data-title="मिटर" data-language-autonym="नेपाली" data-language-local-name="nepalí" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-new mw-list-item"><a href="https://new.wikipedia.org/wiki/%E0%A4%AE%E0%A4%BF%E0%A4%A4%E0%A4%B0" title="मितर – newari" lang="new" hreflang="new" data-title="मितर" data-language-autonym="नेपाल भाषा" data-language-local-name="newari" class="interlanguage-link-target"><span>नेपाल भाषा</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Meter" title="Meter – neerlandés" lang="nl" hreflang="nl" data-title="Meter" data-language-autonym="Nederlands" data-language-local-name="neerlandés" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Meter" title="Meter – noruegués nynorsk" lang="nn" hreflang="nn" data-title="Meter" data-language-autonym="Norsk nynorsk" data-language-local-name="noruegués nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Meter" title="Meter – noruegués bokmål" lang="nb" hreflang="nb" data-title="Meter" data-language-autonym="Norsk bokmål" data-language-local-name="noruegués bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nrm mw-list-item"><a href="https://nrm.wikipedia.org/wiki/M%C3%A8te" title="Mète – Norman" lang="nrf" hreflang="nrf" data-title="Mète" data-language-autonym="Nouormand" data-language-local-name="Norman" class="interlanguage-link-target"><span>Nouormand</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/M%C3%A8tre" title="Mètre – occitano" lang="oc" hreflang="oc" data-title="Mètre" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-os mw-list-item"><a href="https://os.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – ossetio" lang="os" hreflang="os" data-title="Метр" data-language-autonym="Ирон" data-language-local-name="ossetio" class="interlanguage-link-target"><span>Ирон</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AE%E0%A9%80%E0%A8%9F%E0%A8%B0" title="ਮੀਟਰ – panxabí" lang="pa" hreflang="pa" data-title="ਮੀਟਰ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panxabí" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Metr" title="Metr – polaco" lang="pl" hreflang="pl" data-title="Metr" data-language-autonym="Polski" data-language-local-name="polaco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/M%C3%A9ter" title="Méter – Piedmontese" lang="pms" hreflang="pms" data-title="Méter" data-language-autonym="Piemontèis" data-language-local-name="Piedmontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D9%85%DB%8C%D9%B9%D8%B1" title="میٹر – Western Punjabi" lang="pnb" hreflang="pnb" data-title="میٹر" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Metro" title="Metro – portugués" lang="pt" hreflang="pt" data-title="Metro" data-language-autonym="Português" data-language-local-name="portugués" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Mitru" title="Mitru – quechua" lang="qu" hreflang="qu" data-title="Mitru" data-language-autonym="Runa Simi" data-language-local-name="quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Metru" title="Metru – romanés" lang="ro" hreflang="ro" data-title="Metru" data-language-autonym="Română" data-language-local-name="romanés" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-roa-tara mw-list-item"><a href="https://roa-tara.wikipedia.org/wiki/Metre" title="Metre – Tarantino" lang="nap-x-tara" hreflang="nap-x-tara" data-title="Metre" data-language-autonym="Tarandíne" data-language-local-name="Tarantino" class="interlanguage-link-target"><span>Tarandíne</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – ruso" lang="ru" hreflang="ru" data-title="Метр" data-language-autonym="Русский" data-language-local-name="ruso" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D0%B5%D1%80" title="Метер – Rusyn" lang="rue" hreflang="rue" data-title="Метер" data-language-autonym="Русиньскый" data-language-local-name="Rusyn" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%9C%D0%B8%D1%8D%D1%82%D1%8D%D1%80%D1%8D" title="Миэтэрэ – iacuto" lang="sah" hreflang="sah" data-title="Миэтэрэ" data-language-autonym="Саха тыла" data-language-local-name="iacuto" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sc mw-list-item"><a href="https://sc.wikipedia.org/wiki/Metre" title="Metre – sardo" lang="sc" hreflang="sc" data-title="Metre" data-language-autonym="Sardu" data-language-local-name="sardo" class="interlanguage-link-target"><span>Sardu</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Metru" title="Metru – siciliano" lang="scn" hreflang="scn" data-title="Metru" data-language-autonym="Sicilianu" data-language-local-name="siciliano" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Metre" title="Metre – escocés" lang="sco" hreflang="sco" data-title="Metre" data-language-autonym="Scots" data-language-local-name="escocés" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-se mw-list-item"><a href="https://se.wikipedia.org/wiki/Mehter" title="Mehter – saami setentrional" lang="se" hreflang="se" data-title="Mehter" data-language-autonym="Davvisámegiella" data-language-local-name="saami setentrional" class="interlanguage-link-target"><span>Davvisámegiella</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Metar" title="Metar – serbocroata" lang="sh" hreflang="sh" data-title="Metar" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbocroata" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%B8%E0%B7%93%E0%B6%A7%E0%B6%BB%E0%B6%BA" title="මීටරය – cingalés" lang="si" hreflang="si" data-title="මීටරය" data-language-autonym="සිංහල" data-language-local-name="cingalés" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Metre" title="Metre – Simple English" lang="en-simple" hreflang="en-simple" data-title="Metre" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Meter" title="Meter – eslovaco" lang="sk" hreflang="sk" data-title="Meter" data-language-autonym="Slovenčina" data-language-local-name="eslovaco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl badge-Q17437796 badge-featuredarticle mw-list-item" title="artigo de calidade"><a href="https://sl.wikipedia.org/wiki/Meter" title="Meter – esloveno" lang="sl" hreflang="sl" data-title="Meter" data-language-autonym="Slovenščina" data-language-local-name="esloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Mitir" title="Mitir – somalí" lang="so" hreflang="so" data-title="Mitir" data-language-autonym="Soomaaliga" data-language-local-name="somalí" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Metri" title="Metri – albanés" lang="sq" hreflang="sq" data-title="Metri" data-language-autonym="Shqip" data-language-local-name="albanés" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D0%B0%D1%80" title="Метар – serbio" lang="sr" hreflang="sr" data-title="Метар" data-language-autonym="Српски / srpski" data-language-local-name="serbio" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/M%C3%A9ter" title="Méter – sundanés" lang="su" hreflang="su" data-title="Méter" data-language-autonym="Sunda" data-language-local-name="sundanés" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Meter" title="Meter – sueco" lang="sv" hreflang="sv" data-title="Meter" data-language-autonym="Svenska" data-language-local-name="sueco" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Mita" title="Mita – suahili" lang="sw" hreflang="sw" data-title="Mita" data-language-autonym="Kiswahili" data-language-local-name="suahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-szl mw-list-item"><a href="https://szl.wikipedia.org/wiki/Myjter" title="Myjter – Silesian" lang="szl" hreflang="szl" data-title="Myjter" data-language-autonym="Ślůnski" data-language-local-name="Silesian" class="interlanguage-link-target"><span>Ślůnski</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AE%E0%AF%80%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AE%B0%E0%AF%8D" title="மீட்டர் – támil" lang="ta" hreflang="ta" data-title="மீட்டர்" data-language-autonym="தமிழ்" data-language-local-name="támil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AE%E0%B1%80%E0%B0%9F%E0%B0%B0%E0%B1%81" title="మీటరు – telugu" lang="te" hreflang="te" data-title="మీటరు" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – taxico" lang="tg" hreflang="tg" data-title="Метр" data-language-autonym="Тоҷикӣ" data-language-local-name="taxico" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%A1%E0%B8%95%E0%B8%A3" title="เมตร – tailandés" lang="th" hreflang="th" data-title="เมตร" data-language-autonym="ไทย" data-language-local-name="tailandés" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Metro" title="Metro – tagalo" lang="tl" hreflang="tl" data-title="Metro" data-language-autonym="Tagalog" data-language-local-name="tagalo" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Metre" title="Metre – turco" lang="tr" hreflang="tr" data-title="Metre" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-ts mw-list-item"><a href="https://ts.wikipedia.org/wiki/Mitara" title="Mitara – tsonga" lang="ts" hreflang="ts" data-title="Mitara" data-language-autonym="Xitsonga" data-language-local-name="tsonga" class="interlanguage-link-target"><span>Xitsonga</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – tártaro" lang="tt" hreflang="tt" data-title="Метр" data-language-autonym="Татарча / tatarça" data-language-local-name="tártaro" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80" title="Метр – ucraíno" lang="uk" hreflang="uk" data-title="Метр" data-language-autonym="Українська" data-language-local-name="ucraíno" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D9%85%DB%8C%D9%B9%D8%B1" title="میٹر – urdú" lang="ur" hreflang="ur" data-title="میٹر" data-language-autonym="اردو" data-language-local-name="urdú" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Metr" title="Metr – uzbeko" lang="uz" hreflang="uz" data-title="Metr" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeko" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/Metro" title="Metro – Venetian" lang="vec" hreflang="vec" data-title="Metro" data-language-autonym="Vèneto" data-language-local-name="Venetian" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Metr" title="Metr – Veps" lang="vep" hreflang="vep" data-title="Metr" data-language-autonym="Vepsän kel’" data-language-local-name="Veps" class="interlanguage-link-target"><span>Vepsän kel’</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/M%C3%A9t" title="Mét – vietnamita" lang="vi" hreflang="vi" data-title="Mét" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-vls mw-list-item"><a href="https://vls.wikipedia.org/wiki/Meter_(lengtemoate)" title="Meter (lengtemoate) – West Flemish" lang="vls" hreflang="vls" data-title="Meter (lengtemoate)" data-language-autonym="West-Vlams" data-language-local-name="West Flemish" class="interlanguage-link-target"><span>West-Vlams</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/Mete" title="Mete – valón" lang="wa" hreflang="wa" data-title="Mete" data-language-autonym="Walon" data-language-local-name="valón" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Metro" title="Metro – waray-waray" lang="war" hreflang="war" data-title="Metro" data-language-autonym="Winaray" data-language-local-name="waray-waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%B1%B3%EF%BC%88%E5%8D%95%E4%BD%8D%EF%BC%89" title="米（单位） – chinés wu" lang="wuu" hreflang="wuu" data-title="米（单位）" data-language-autonym="吴语" data-language-local-name="chinés wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%9B%E1%83%94%E1%83%A2%E1%83%A0%E1%83%90" title="მეტრა – Mingrelian" lang="xmf" hreflang="xmf" data-title="მეტრა" data-language-autonym="მარგალური" data-language-local-name="Mingrelian" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%9E%D7%A2%D7%98%D7%A2%D7%A8" title="מעטער – yiddish" lang="yi" hreflang="yi" data-title="מעטער" data-language-autonym="ייִדיש" data-language-local-name="yiddish" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/M%C3%ADt%C3%A0" title="Mítà – ioruba" lang="yo" hreflang="yo" data-title="Mítà" data-language-autonym="Yorùbá" data-language-local-name="ioruba" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%B1%B3_(%E5%8D%95%E4%BD%8D)" title="米 (单位) – chinés" lang="zh" hreflang="zh" data-title="米 (单位)" data-language-autonym="中文" data-language-local-name="chinés" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E5%85%AC%E5%B0%BA" title="公尺 – Literary Chinese" lang="lzh" hreflang="lzh" data-title="公尺" data-language-autonym="文言" data-language-local-name="Literary Chinese" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Kong-chhioh" title="Kong-chhioh – Minnan" lang="nan" hreflang="nan" data-title="Kong-chhioh" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%B1%B3_(%E5%96%AE%E4%BD%8D)" title="米 (單位) – cantonés" lang="yue" hreflang="yue" data-title="米 (單位)" data-language-autonym="粵語" data-language-local-name="cantonés" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q11573#sitelinks-wikipedia" title="Editar as ligazóns interlingüísticas" class="wbc-editpage">Editar as ligazóns</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Espazos de nomes"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Metro" title="Ver o contido da páxina [c]" accesskey="c"><span>Artigo</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Conversa:Metro" rel="discussion" title="Conversa acerca do contido desta páxina [t]" accesskey="t"><span>Conversa</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Cambiar a variante de lingua" > <label 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class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">agochar</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Máis opcións" > <div class="vector-menu-heading"> Accións </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Metro"><span>Ler</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Metro&veaction=edit" title="Editar esta páxina [v]" accesskey="v"><span>Editar</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Metro&action=edit" title="Editar o código fonte desta páxina [e]" accesskey="e"><span>Editar a fonte</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Metro&action=history"><span>Ver o historial</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Xeral </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Especial:P%C3%A1xinas_que_ligan_con_esta/Metro" title="Lista de todas as páxinas do wiki que ligan cara a aquí [j]" accesskey="j"><span>Páxinas que ligan con esta</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Especial:Cambios_relacionados/Metro" rel="nofollow" title="Cambios recentes nas páxinas ligadas desde esta [k]" accesskey="k"><span>Cambios relacionados</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Especial:P%C3%A1xinas_especiais" title="Lista de todas as páxinas especiais [q]" accesskey="q"><span>Páxinas especiais</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Metro&oldid=6785449" title="Ligazón permanente a esta versión desta páxina"><span>Ligazón permanente</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Metro&action=info" title="Máis información sobre esta páxina"><span>Información da páxina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Especial:Cita&page=Metro&id=6785449&wpFormIdentifier=titleform" title="Información sobre como citar esta páxina"><span>Citar esta páxina</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Especial:UrlShortener&url=https%3A%2F%2Fgl.wikipedia.org%2Fwiki%2FMetro"><span>Xerar URL acurtado</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Especial:QrCode&url=https%3A%2F%2Fgl.wikipedia.org%2Fwiki%2FMetro"><span>Descargar o código QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Imprimir/exportar </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Especial:Libro&bookcmd=book_creator&referer=Metro"><span>Crear un libro</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Especial:DownloadAsPdf&page=Metro&action=show-download-screen"><span>Descargar como PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Metro&printable=yes" title="Versión para imprimir da páxina [p]" accesskey="p"><span>Versión para imprimir</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Noutros proxectos </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Metre" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q11573" title="Ligazón ao elemento conectado no repositorio de datos [g]" accesskey="g"><span>Elemento de Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Ferramentas das páxinas"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aparencia"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aparencia</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mover á barra lateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">agochar</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-03-1000" class="mw-indicator"><div class="mw-parser-output"><span typeof="mw:File"><a href="//gl.wikipedia.org/wiki/Wikipedia:Lista_de_artigos_que_toda_Wikipedia_deber%C3%ADa_ter" title="Este é un dos 1000 artigos que toda Wikipedia debería ter"><img alt="Este é un dos 1000 artigos que toda Wikipedia debería ter" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f7/AD_%2B30.svg/22px-AD_%2B30.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f7/AD_%2B30.svg/33px-AD_%2B30.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f7/AD_%2B30.svg/44px-AD_%2B30.svg.png 2x" data-file-width="10" data-file-height="10" /></a></span></div></div> </div> <div id="siteSub" class="noprint">Na Galipedia, a Wikipedia en galego.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="gl" dir="ltr"><p class="mw-empty-elt"> </p> <div class="dablink">Para outras páxinas con títulos homónimos véxase: <a href="/wiki/Metro_(hom%C3%B3nimos)" class="mw-disambig" title="Metro (homónimos)">Metro (homónimos)</a>.</div> <figure typeof="mw:File/Thumb"><a href="/wiki/Ficheiro:Platinum-Iridium_meter_bar.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Platinum-Iridium_meter_bar.jpg/200px-Platinum-Iridium_meter_bar.jpg" decoding="async" width="200" height="131" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Platinum-Iridium_meter_bar.jpg/300px-Platinum-Iridium_meter_bar.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Platinum-Iridium_meter_bar.jpg/400px-Platinum-Iridium_meter_bar.jpg 2x" data-file-width="4232" data-file-height="2781" /></a><figcaption>Metro patrón en platino iridiado.</figcaption></figure> <p>O <b>metro</b> é a <a href="/wiki/Unidade_de_medida" title="Unidade de medida">unidade</a> <a href="/w/index.php?title=Magnitude_fundamental&action=edit&redlink=1" class="new" title="Magnitude fundamental (a páxina aínda non existe)">fundamental</a> de <a href="/wiki/Lonxitude_(f%C3%ADsica)" class="mw-redirect" title="Lonxitude (física)">lonxitude</a>, pertencente ó <a href="/wiki/Sistema_Internacional_de_Unidades" title="Sistema Internacional de Unidades">Sistema Internacional de Unidades</a>. O seu símbolo é <b>m</b>. Definiuse inicialmente como a 10 000 000 parte do <a href="/w/index.php?title=Cuadrante_(xeometr%C3%ADa)&action=edit&redlink=1" class="new" title="Cuadrante (xeometría) (a páxina aínda non existe)">cuadrante</a> do <a href="/wiki/Meridiano" title="Meridiano">meridiano</a> terrestre, mais actualmente, o metro defínese como a lonxitude do traxecto percorrido pola <a href="/wiki/Luz" title="Luz">luz</a> no <a href="/wiki/Baleiro" title="Baleiro">baleiro</a> durante un intervalo de <a href="/wiki/Tempo" title="Tempo">tempo</a> de 1/299 792 458 de <a href="/wiki/Segundo" title="Segundo">segundo</a> (Unidade de Base ratificada pola 17ª <a href="/wiki/Conferencia_Xeral_de_Pesos_e_Medidas" title="Conferencia Xeral de Pesos e Medidas">CXPM</a> - <a href="/wiki/1983" title="1983">1983</a>). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Etimoloxía"><span id="Etimolox.C3.ADa"></span>Etimoloxía</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=1" title="Editar a sección: «Etimoloxía»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=1" title="Editar o código fonte da sección: Etimoloxía"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>As raíces da etimoloxía do vocábulo <i>metro</i> poden trazarse ata o verbo grego μετρέω (transliterado <i>metreo</i>, "medir, contar ou comparar") e o substantivo μέτρον (<i>metron</i>, "medida"), que se empregaban para medidas físicas, para a métrica e por extensión para a moderación ou evitar o extremismo (como en "ter unha resposta medida"). O rango de usos tamén se atopaba no <a href="/wiki/Lingua_latina" title="Lingua latina">latín</a> <i>metior, mensura</i> e noutras linguas. </p><p>O lema ΜΕΤΡΩ ΧΡΩ (<i>metro khro</i>) aparece no selo da <a href="/wiki/Oficina_Internacional_de_Pesos_e_Medidas" title="Oficina Internacional de Pesos e Medidas">Oficina Internacional de Pesos e Medidas</a> (BIPM), que era unha expresión do estadista e filósofo grego <a href="/w/index.php?title=Pitaco_de_Mitilene&action=edit&redlink=1" class="new" title="Pitaco de Mitilene (a páxina aínda non existe)">Pitaco de Mitilene</a> e se traduce como "Emprega medida!", chamando tanto pola medida como pola moderación. A palabra <i>metro</i> chegou a partir do <a href="/wiki/Lingua_francesa" title="Lingua francesa">francés</a> <b>mètre</b>. </p> <div class="mw-heading mw-heading2"><h2 id="Múltiplos_e_submúltiplos"><span id="M.C3.BAltiplos_e_subm.C3.BAltiplos"></span>Múltiplos e submúltiplos</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=2" title="Editar a sección: «Múltiplos e submúltiplos»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=2" title="Editar o código fonte da sección: Múltiplos e submúltiplos"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Poden empregarse os prefixos do <a href="/wiki/Sistema_Internacional_de_Unidades" title="Sistema Internacional de Unidades">Sistema Internacional de Unidades</a> (SI) para denotar múltiplos e submúltiplos do metro como se mostra na táboa: </p> <center> <table class="wikitable"> <tbody><tr> <th colspan="2" align="center">1 metro equivale a </th></tr> <tr> <td>10<sup>−24</sup> <a href="/w/index.php?title=Yott%C3%A1metro&action=edit&redlink=1" class="new" title="Yottámetro (a páxina aínda non existe)">yottámetros</a> </td> <td>10<sup>1</sup> <a href="/wiki/Dec%C3%ADmetro" title="Decímetro">decímetros</a> </td></tr> <tr> <td>10<sup>−21</sup> <a href="/w/index.php?title=Zett%C3%A1metro&action=edit&redlink=1" class="new" title="Zettámetro (a páxina aínda non existe)">zettámetros</a> </td> <td>10<sup>2</sup> <a href="/wiki/Cent%C3%ADmetro" title="Centímetro">centímetros</a> </td></tr> <tr> <td>10<sup>−18</sup> <a href="/w/index.php?title=Ex%C3%A1metro&action=edit&redlink=1" class="new" title="Exámetro (a páxina aínda non existe)">exámetros</a> </td> <td>10<sup>3</sup> <a href="/wiki/Mil%C3%ADmetro" title="Milímetro">milímetros</a> </td></tr> <tr> <td>10<sup>−15</sup> <a href="/w/index.php?title=Pet%C3%A1metro&action=edit&redlink=1" class="new" title="Petámetro (a páxina aínda non existe)">petámetros</a> </td> <td>10<sup>6</sup> <a href="/wiki/Micr%C3%B3metro" title="Micrómetro">micrómetros</a> </td></tr> <tr> <td>10<sup>−12</sup> <a href="/w/index.php?title=Ter%C3%A1metro&action=edit&redlink=1" class="new" title="Terámetro (a páxina aínda non existe)">terámetros</a> </td> <td>10<sup>9</sup> <a href="/wiki/Nan%C3%B3metro" class="mw-redirect" title="Nanómetro">nanómetros</a> </td></tr> <tr> <td>10<sup>−9</sup> <a href="/w/index.php?title=Xig%C3%A1metro&action=edit&redlink=1" class="new" title="Xigámetro (a páxina aínda non existe)">xigámetros</a> </td> <td>10<sup>10</sup> <a href="/wiki/%C3%85ngstr%C3%B6m" class="mw-redirect" title="Ångström">ångströms</a> </td></tr> <tr> <td>10<sup>−6</sup> <a href="/wiki/Meg%C3%A1metro" title="Megámetro">megámetros</a> </td> <td>10<sup>12</sup> <a href="/wiki/Pic%C3%B3metro" title="Picómetro">picómetros</a> </td></tr> <tr> <td>10<sup>−4</sup> <a href="/wiki/Miri%C3%A1metro" title="Miriámetro">miriámetros</a> </td> <td>10<sup>15</sup> <a href="/w/index.php?title=Femt%C3%B3metro&action=edit&redlink=1" class="new" title="Femtómetro (a páxina aínda non existe)">femtómetros</a> </td></tr> <tr> <td>10<sup>−3</sup> <a href="/wiki/Quil%C3%B3metro" title="Quilómetro">quilómetros</a> </td> <td>10<sup>18</sup> <a href="/w/index.php?title=Att%C3%B3metro&action=edit&redlink=1" class="new" title="Attómetro (a páxina aínda non existe)">attómetros</a> </td></tr> <tr> <td>10<sup>−2</sup> <a href="/wiki/Hect%C3%B3metro" title="Hectómetro">hectómetros</a> </td> <td>10<sup>21</sup> <a href="/w/index.php?title=Zept%C3%B3metro&action=edit&redlink=1" class="new" title="Zeptómetro (a páxina aínda non existe)">zeptómetros</a> </td></tr> <tr> <td>10<sup>−1</sup> <a href="/w/index.php?title=Dec%C3%A1metro&action=edit&redlink=1" class="new" title="Decámetro (a páxina aínda non existe)">decámetros</a> </td> <td>10<sup>24</sup> <a href="/w/index.php?title=Yoct%C3%B3metro&action=edit&redlink=1" class="new" title="Yoctómetro (a páxina aínda non existe)">yoctómetros</a> </td></tr> </tbody></table> </center> <p>Algunhas destas unidades empréganse máis raramente. Así, as distancias longas adoitan expresarse en quilómetros, <a href="/wiki/Unidade_astron%C3%B3mica" title="Unidade astronómica">unidades astronómicas</a> (149,6 Gm), <a href="/wiki/Ano_luz" title="Ano luz">anos luz</a> (10 Pm) ou <a href="/wiki/Parsec" title="Parsec">parsecs</a> (31 Pm), máis que en Mm, Gm, Tm, Pm, Em, Zm ou Ym; "30 cm", "30 m" e "300 m" son máis comúns que "3 dm", "3 dam" e "3 hm", respectivamente. </p><p>Poden empregarse os vocábulos <i>micron</i><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span>[</span>1<span>]</span></a></sup> e <i>millimicron</i> no canto de <i>micrómetro</i> (μm) e <i>nanómetro</i> (nm), mais esta práctica está desaconsellada.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span>[</span>2<span>]</span></a></sup> A palabra <i>micra</i> está oficialmente rexeitada.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span>[</span>3<span>]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Equivalencias_noutras_unidades">Equivalencias noutras unidades</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=3" title="Editar a sección: «Equivalencias noutras unidades»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=3" title="Editar o código fonte da sección: Equivalencias noutras unidades"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable" style="margin:0 auto;"> <tbody><tr> <th colspan="5" style="text-align:left;">Unidade do SI<br />expresada en unidades non do SI </th> <th colspan="4" style="text-align:left;">Unidade non do SI<br />expresada en unidades do SI </th></tr> <tr> <td>1 metro</td> <td>≈</td> <td style="text-align:right;">1,0936</td> <td><a href="/wiki/Iarda" title="Iarda">iarda</a></td> <td> </td> <td>1 iarda</td> <td>≡</td> <td style="text-align:right;">0,9144</td> <td>metros </td></tr> <tr> <td>1 metro</td> <td>≈</td> <td style="text-align:right;">39,370</td> <td><a href="/wiki/Polgada" title="Polgada">polgadas</a></td> <td> </td> <td>1 polgada</td> <td>≡</td> <td style="text-align:right;">0,0254</td> <td>metro </td></tr> <tr> <td>1 <a href="/wiki/Cent%C3%ADmetro" title="Centímetro">centímetro</a></td> <td>≈</td> <td style="text-align:right;">0,39370</td> <td>polgadas</td> <td> </td> <td>1 polgada</td> <td>≡</td> <td style="text-align:right;">2,54</td> <td>centímetros </td></tr> <tr> <td>1 metro</td> <td>≡</td> <td style="text-align:right;">1×10<sup>10</sup></td> <td><a href="/wiki/%C3%85ngstr%C3%B6m" class="mw-redirect" title="Ångström">ångström</a></td> <td> </td> <td>1 ångström</td> <td>≡</td> <td style="text-align:right;">1×10<sup>−10</sup></td> <td>metros </td></tr> <tr> <td></td> <td></td> <td></td> <td></td> <td> </td> <td>1 <a href="/wiki/Milla" title="Milla">milla terrestre</a></td> <td>≡</td> <td style="text-align:right;">1609,344</td> <td>metros </td></tr> <tr> <td></td> <td></td> <td></td> <td></td> <td> </td> <td>1 <a href="/wiki/Milla_n%C3%A1utica" title="Milla náutica">milla náutica</a></td> <td>≡</td> <td style="text-align:right;">1852</td> <td>metros </td></tr> <tr> <td></td> <td></td> <td></td> <td></td> <td> </td> <td>1 <a href="/wiki/P%C3%A9_(medida)" title="Pé (medida)">pé</a></td> <td>≡</td> <td style="text-align:right;">0,3048</td> <td>metros </td></tr></tbody></table> <p>Na táboa, "polgada" e "iarda" refírense a "polgada internacional" e "iarda internacional".<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span>[</span>4<span>]</span></a></sup> O símbolo "≈" significa "aproximadamente igual a"; o símbolo "≡" significa "igual por definición" ou "exactamente igual a". </p> <div class="mw-heading mw-heading2"><h2 id="Historia_da_definición_do_metro"><span id="Historia_da_definici.C3.B3n_do_metro"></span>Historia da definición do metro</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=4" title="Editar a sección: «Historia da definición do metro»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=4" title="Editar o código fonte da sección: Historia da definición do metro"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Primeiras_medicións"><span id="Primeiras_medici.C3.B3ns"></span>Primeiras medicións</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=5" title="Editar a sección: «Primeiras medicións»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=5" title="Editar o código fonte da sección: Primeiras medicións"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/Ficheiro:Kilometre_definition.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Kilometre_definition.svg/200px-Kilometre_definition.svg.png" decoding="async" width="200" height="201" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/14/Kilometre_definition.svg/300px-Kilometre_definition.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/14/Kilometre_definition.svg/400px-Kilometre_definition.svg.png 2x" data-file-width="596" data-file-height="599" /></a><figcaption>Definición antiga do metro como a dezmillonésima parte da metade dun <a href="/wiki/Meridiano" title="Meridiano">meridiano</a> terrestre.</figcaption></figure> <p>Durante toda a historia leváronse a cabo intentos de unificación das distintas medidas co obxecto de simplificar os intercambios, facilitar o comercio e o cobro xusto dos <a href="/wiki/Imposto" title="Imposto">impostos</a>. En 1671 <a href="/w/index.php?title=Jean_Picard&action=edit&redlink=1" class="new" title="Jean Picard (a páxina aínda non existe)">Jean Picard</a> mediu a lonxitude dun <a href="/wiki/P%C3%A9ndulo" title="Péndulo">péndulo</a> cun período de dous <a href="/wiki/Segundo" title="Segundo">segundos</a> no <a href="/w/index.php?title=Observatorio_de_Par%C3%ADs&action=edit&redlink=1" class="new" title="Observatorio de París (a páxina aínda non existe)">Observatorio de París</a>. Atopou un valor de 440,5 liñas da <a href="/w/index.php?title=Toesa&action=edit&redlink=1" class="new" title="Toesa (a páxina aínda non existe)">toesa</a> de Châtelet, que acababa de ser renovada. Propuxo unha toesa universal (en francés, <i>Toise universelle</i>) que era o dobre da lonxitude do péndulo.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span>[</span>5<span>]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span>[</span>6<span>]</span></a></sup> Porén, descubriuse axiña que a lonxitude dese péndulo varía co lugar: o astrónomo francés <a href="/w/index.php?title=Jean_Richer&action=edit&redlink=1" class="new" title="Jean Richer (a páxina aínda non existe)">Jean Richer</a> medira unha diferenza do 0,3% de lonxitude entre <a href="/wiki/Cayenne" title="Cayenne">Cayenne</a> (na <a href="/wiki/G%C3%BCiana_Francesa" title="Güiana Francesa">Güiana Francesa</a>) e en <a href="/wiki/Par%C3%ADs" title="París">París</a>.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span>[</span>7<span>]</span></a></sup><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span>[</span>8<span>]</span></a></sup><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span>[</span>9<span>]</span></a></sup> </p><p><a href="/w/index.php?title=Jean_Richer&action=edit&redlink=1" class="new" title="Jean Richer (a páxina aínda non existe)">Jean Richer</a> e <a href="/w/index.php?title=Giovanni_Domenico_Cassini&action=edit&redlink=1" class="new" title="Giovanni Domenico Cassini (a páxina aínda non existe)">Giovanni Domenico Cassini</a> mediron a paralaxe de Marte entre París e Cayenne cando Marte estaba máis próximo á <a href="/wiki/Terra" title="Terra">Terra</a> en 1672. Chegaron a un valor para a paralaxe solar de 9,5 segundos de arco, equivalente a unha distancia Terra-Sol duns 22 000 raios terrestres. Foron tamén os primeiros astrónomos en ter acceso a un valor preciso e fiable para o raio da Terra, que fora medido polo seu colega Jean Picard en 1669 como 3 269 000 toesas. As observacións <a href="/wiki/Xeodesia" title="Xeodesia">xeodésicas</a> de Picard limitáronse á determinación da magnitude da Terra considerada como unha <a href="/wiki/Esfera" title="Esfera">esfera</a>, mais o descubrimento feito por Jean Richer volveu a atención dos matemáticos cara á súa desviación dunha forma esférica.<sup id="cite_ref-FOOTNOTEClarkeHelmert1911802_10-0" class="reference"><a href="#cite_note-FOOTNOTEClarkeHelmert1911802-10"><span>[</span>10<span>]</span></a></sup><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span>[</span>11<span>]</span></a></sup><sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span>[</span>12<span>]</span></a></sup> </p><p>Desde <a href="/wiki/Erat%C3%B3stenes" title="Eratóstenes">Eratóstenes</a>, os xeógrafos utilizaron a medición dos arcos meridianos para avaliar o tamaño do globo terráqueo. Desde finais do século XVII, a <a href="/wiki/Xeodesia" title="Xeodesia">xeodesia</a> preocupouse de medir a Terra, para determinar non só o seu tamaño, senón tamén a súa forma. De feito, primeiro tomada como esfera, a Terra foi entón considerada como un <a href="/w/index.php?title=Esferoide&action=edit&redlink=1" class="new" title="Esferoide (a páxina aínda non existe)">esferoide</a> de revolución. No século XVIII, a xeodesia estaba no centro dos debates entre <a href="/w/index.php?title=Cartesianismo&action=edit&redlink=1" class="new" title="Cartesianismo (a páxina aínda non existe)">cartesianos</a> e <a href="/wiki/Isaac_Newton" title="Isaac Newton">newtonianos</a> en Francia, porque era o medio para demostrar empiricamente a <a href="/wiki/Lei_da_gravitaci%C3%B3n_universal" title="Lei da gravitación universal">teoría da gravitación universal</a>. Ademais da súa importancia para o mapeo, a determinación da figura da Terra era entón un problema de suma importancia en <a href="/wiki/Astronom%C3%ADa" title="Astronomía">astronomía</a>, xa que o raio da Terra era a unidade á que se referían todas as distancias celestes.<sup id="cite_ref-FOOTNOTEClarkeHelmert1911801_13-0" class="reference"><a href="#cite_note-FOOTNOTEClarkeHelmert1911801-13"><span>[</span>13<span>]</span></a></sup><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span>[</span>14<span>]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Meridiano_terrestre">Meridiano terrestre</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=6" title="Editar a sección: «Meridiano terrestre»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=6" title="Editar o código fonte da sección: Meridiano terrestre"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/Ficheiro:Panth%C3%A9on_de_Paris,_16_January_2016.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Panth%C3%A9on_de_Paris%2C_16_January_2016.jpg/220px-Panth%C3%A9on_de_Paris%2C_16_January_2016.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Panth%C3%A9on_de_Paris%2C_16_January_2016.jpg/330px-Panth%C3%A9on_de_Paris%2C_16_January_2016.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Panth%C3%A9on_de_Paris%2C_16_January_2016.jpg/440px-Panth%C3%A9on_de_Paris%2C_16_January_2016.jpg 2x" data-file-width="5472" data-file-height="3648" /></a><figcaption>Panteón de París</figcaption></figure> <p>Na <a href="/wiki/Revoluci%C3%B3n_Francesa" title="Revolución Francesa">Revolución Francesa</a>, xunto con outros desafíos considerados necesarios para os <i>novos tempos</i>, nomeáronse comisións de científicos para uniformar os pesos e as medidas, entre os que estaba a lonxitude. A tarefa foi ardua e complexa. Considerouse empregar como padrón a lonxitudo do <a href="/wiki/P%C3%A9ndulo" title="Péndulo">péndulo</a> nun <a href="/wiki/Segundo" title="Segundo">segundo</a> a unha <a href="/wiki/Latitude" title="Latitude">latitude</a> de 45°, pero acabou descartándose por non ser <i>un modelo completamente obxectivo</i>.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span>[</span>15<span>]</span></a></sup> O 7 de outubro de 1790 esa comisión aconsellou a adopción dun sistema decimal e o 19 de marzo de 1791 aconsellou a adopción do termo <i>mètre</i> ("medida"), unha unidade básica de lonxitude, que definiron como igual a unha dezmilionésima parte do cuadrante de meridiano, a distancia entre o <a href="/wiki/Polo_norte" class="mw-redirect" title="Polo norte">polo norte</a> e o <a href="/wiki/Ecuador_terrestre" title="Ecuador terrestre">ecuador</a> ao longo do meridiano de París.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span>[</span>16<span>]</span></a></sup><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span>[</span>17<span>]</span></a></sup><sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span>[</span>18<span>]</span></a></sup><sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span>[</span>19<span>]</span></a></sup> Se este valor se expresase de xeito análogo a como se define a <a href="/wiki/Milla_n%C3%A1utica" title="Milla náutica">milla náutica</a>, corresponderíase coa lonxitude de meridiano terrestre que forma un arco de 1/10 de segundo de <a href="/wiki/Grao_centesimal" title="Grao centesimal">grao centesimal</a>. En 1793, a <a href="/w/index.php?title=Convenci%C3%B3n_Nacional&action=edit&redlink=1" class="new" title="Convención Nacional (a páxina aínda non existe)">Convención Nacional</a> adoptou a proposta.<sup id="cite_ref-Oxford_20-0" class="reference"><a href="#cite_note-Oxford-20"><span>[</span>20<span>]</span></a></sup> </p><p>A <a href="/w/index.php?title=Academia_de_Ciencias_Francesa&action=edit&redlink=1" class="new" title="Academia de Ciencias Francesa (a páxina aínda non existe)">Academia de Ciencias Francesa</a> encargou unha expedición dirixida por <a href="/w/index.php?title=Jean_Baptiste_Joseph_Delambre&action=edit&redlink=1" class="new" title="Jean Baptiste Joseph Delambre (a páxina aínda non existe)">Jean Baptiste Joseph Delambre</a> e <a href="/w/index.php?title=Pierre_M%C3%A9chain&action=edit&redlink=1" class="new" title="Pierre Méchain (a páxina aínda non existe)">Pierre Méchain</a>, de 1792 a 1799, que intentou medir con precisión, mediante un sistema de triangulación, a distancia entre unha espadana en <a href="/wiki/Dunkerque" title="Dunkerque">Dunkerque</a> e o <a href="/wiki/Castelo_de_Montju%C3%AFc" title="Castelo de Montjuïc">castelo de Montjuïc</a> de <a href="/wiki/Barcelona" title="Barcelona">Barcelona</a><sup id="cite_ref-DenigGuedj_21-0" class="reference"><a href="#cite_note-DenigGuedj-21"><span>[</span>21<span>]</span></a></sup> na lonxitude do <a href="/wiki/Pante%C3%B3n_de_Par%C3%ADs" title="Panteón de París">Panteón de París</a>.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span>[</span>22<span>]</span></a></sup> Esta porción do meridiano de París ía servir de base para a lonxitude do meridiano que conectaba o polo norte co ecuador. De 1801 a 1812 Francia adoptou esta definición do metro como a súa unidade oficial de lonxitude baseándose nos resultados desta expedición combinados cos da <a href="/w/index.php?title=Misi%C3%B3n_Xeod%C3%A9sica_Francesa&action=edit&redlink=1" class="new" title="Misión Xeodésica Francesa (a páxina aínda non existe)">Misión Xeodésica ao Perú</a>.<sup id="cite_ref-Levallois_23-0" class="reference"><a href="#cite_note-Levallois-23"><span>[</span>23<span>]</span></a></sup> </p><p>No século XIX, a <a href="/wiki/Xeodesia" title="Xeodesia">xeodesia</a> viviu unha revolución cos avances nas <a href="/wiki/Matem%C3%A1ticas" title="Matemáticas">matemáticas</a>, así como o progreso dos instrumentos e métodos de observación. A aplicación do <a href="/w/index.php?title=M%C3%A9todo_de_m%C3%ADnimos_cadrados&action=edit&redlink=1" class="new" title="Método de mínimos cadrados (a páxina aínda non existe)">método de mínimos cadrados</a> ás medidas do arco dos meridianos demostrou a importancia do <a href="/wiki/M%C3%A9todo_cient%C3%ADfico" title="Método científico">método científico</a> na xeodesia. Por outra banda, a invención do <a href="/wiki/Tel%C3%A9grafo_el%C3%A9ctrico" title="Telégrafo eléctrico">telégrafo</a> permitiu medir arcos paralelos e a mellora do péndulo reversible deu lugar ao estudo do <a href="/wiki/Campo_gravitatorio" title="Campo gravitatorio">campo gravitatorio</a> da Terra. Unha determinación máis precisa da forma da Terra apareceu despois da medición do <a href="/wiki/Arco_Xeod%C3%A9sico_de_Struve" title="Arco Xeodésico de Struve">Arco Xeodésico de Struve</a> (1816–1855) e deu outro valor para a definición deste estándar de lonxitude. Isto non invalidou o metro, senón que resaltou que os progresos científicos permitirían unha mellor medición do tamaño e forma da Terra.<sup id="cite_ref-FOOTNOTEClarkeHelmert1911803–804_24-0" class="reference"><a href="#cite_note-FOOTNOTEClarkeHelmert1911803–804-24"><span>[</span>24<span>]</span></a></sup><sup id="cite_ref-:4_25-0" class="reference"><a href="#cite_note-:4-25"><span>[</span>25<span>]</span></a></sup><sup id="cite_ref-unesco_26-0" class="reference"><a href="#cite_note-unesco-26"><span>[</span>26<span>]</span></a></sup><sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span>[</span>27<span>]</span></a></sup> </p><p>En 1832, <a href="/wiki/Carl_Friedrich_Gauss" title="Carl Friedrich Gauss">Carl Friedrich Gauss</a> estudou o campo magnético terrestre e propuxo engadir o <a href="/wiki/Segundo" title="Segundo">segundo</a> ás unidades básicas do metro e o <a href="/wiki/Quilogramo" title="Quilogramo">quilogramo</a> na forma do <a href="/wiki/Sistema_CGS" title="Sistema CGS">sistema CGS</a> (centímetro, gramo, segundo). En 1836 fundou a Magnetischer Verein, primeira asociación científica internacional, en colaboración con <a href="/wiki/Alexander_von_Humboldt" title="Alexander von Humboldt">Alexander von Humboldt</a> e <a href="/w/index.php?title=Wilhelm_Edouard_Weber&action=edit&redlink=1" class="new" title="Wilhelm Edouard Weber (a páxina aínda non existe)">Wilhelm Edouard Weber</a>. A <a href="/wiki/Xeof%C3%ADsica" title="Xeofísica">xeofísica</a> precedeu á <a href="/wiki/F%C3%ADsica" title="Física">física</a> e contribuíu ao desenvolvemento dos seus métodos. Tratábase principalmente dunha <a href="/wiki/Filosof%C3%ADa_natural" class="mw-redirect" title="Filosofía natural">filosofía natural</a> que tiña como obxecto o estudo de fenómenos naturais como o campo magnético terrestre, os <a href="/wiki/Raio_(descarga_el%C3%A9ctrica)" title="Raio (descarga eléctrica)">raios</a> e a gravidade. A coordinación da observación dos fenómenos xeofísicos en diferentes puntos do globo foi de enorme importancia e estivo na orixe da creación das primeiras asociacións científicas internacionais. A fundación do Magnetischer Verein foi seguida da Medida do Arco de Europa Central (en alemán: <a href="/w/index.php?title=Mitteleuropa%C3%AFsche_Gradmessung&action=edit&redlink=1" class="new" title="Mitteleuropaïsche Gradmessung (a páxina aínda non existe)">Mitteleuropaïsche Gradmessung</a>) por iniciativa de <a href="/w/index.php?title=Johann_Jacob_Baeyer&action=edit&redlink=1" class="new" title="Johann Jacob Baeyer (a páxina aínda non existe)">Johann Jacob Baeyer</a> en 1863, e pola da <a href="/w/index.php?title=Organizaci%C3%B3n_Meteorol%C3%B3xica_Internacional&action=edit&redlink=1" class="new" title="Organización Meteorolóxica Internacional (a páxina aínda non existe)">Organización Meteorolóxica Internacional</a> cuxo segundo presidente, o meteorólogo e físico suízo, <a href="/w/index.php?title=Heinrich_von_Wild&action=edit&redlink=1" class="new" title="Heinrich von Wild (a páxina aínda non existe)">Heinrich von Wild</a> representou a Rusia no <a href="/w/index.php?title=Comit%C3%A9_Internacional_de_Pesos_e_Medidas&action=edit&redlink=1" class="new" title="Comité Internacional de Pesos e Medidas (a páxina aínda non existe)">Comité Internacional de Pesos e Medidas</a> (CIPM).<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span>[</span>28<span>]</span></a></sup><sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span>[</span>29<span>]</span></a></sup><sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span>[</span>30<span>]</span></a></sup><sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span>[</span>31<span>]</span></a></sup><sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span>[</span>32<span>]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Barra_de_platino_e_iridio">Barra de platino e iridio</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=7" title="Editar a sección: «Barra de platino e iridio»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=7" title="Editar o código fonte da sección: Barra de platino e iridio"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Ficheiro:Metre_alloy.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Metre_alloy.jpg/220px-Metre_alloy.jpg" decoding="async" width="220" height="150" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Metre_alloy.jpg/330px-Metre_alloy.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Metre_alloy.jpg/440px-Metre_alloy.jpg 2x" data-file-width="681" data-file-height="463" /></a><figcaption>izquierda</figcaption></figure> <p><a href="/w/index.php?title=Ferdinand_Rudolph_Hassler&action=edit&redlink=1" class="new" title="Ferdinand Rudolph Hassler (a páxina aínda non existe)">Ferdinand Rudolph Hassler</a> foi elixido membro da <a href="/w/index.php?title=American_Philosophical_Society&action=edit&redlink=1" class="new" title="American Philosophical Society (a páxina aínda non existe)">American Philosophical Society</a> o 17 de abril de 1807. Levara aos Estados Unidos unha gran colección de libros científicos e numerosos instrumentos e estándares científicos, entre eles un metro estándar fabricado en París en 1799. Un longo curso de formación especial en Suíza, Francia e Alemaña convertérano nun dos máis destacados especialistas en xeodesia práctica no seu país a principios do século XIX. En 1816 foi nomeado primeiro superintendente do <a href="/w/index.php?title=Survey_of_the_Coast&action=edit&redlink=1" class="new" title="Survey of the Coast (a páxina aínda non existe)">Survey of the Coast</a>. A parte creativa de Hassler viuse no deseño de novos instrumentos de levantamento. O máis orixinal foi un aparello que implicaba unha idea elaborada por el en Suíza e perfeccionada en América. No canto de poñer diferentes barras en contacto durante o proceso de medición da liña de base, utilizaba catro barras de ferro de dous metros fixadas xuntas que sumaban oito metros de lonxitude e o contacto óptico. Xa en febreiro-marzo de 1817, Ferdinand Rudolph Hassler estandarizou as barras do seu dispositivo que realmente estaban calibradas co metro. Esta última converteuse na unidade de lonxitude da xeodesia nos Estados Unidos.<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span>[</span>33<span>]</span></a></sup><sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span>[</span>34<span>]</span></a></sup><sup id="cite_ref-:2_35-0" class="reference"><a href="#cite_note-:2-35"><span>[</span>35<span>]</span></a></sup><sup id="cite_ref-FOOTNOTEBigourdan19018,_158–159_36-0" class="reference"><a href="#cite_note-FOOTNOTEBigourdan19018,_158–159-36"><span>[</span>36<span>]</span></a></sup> </p><p>O uso do metro por Ferdinand Rudolph Hassler na investigación costeira contribuíu á introdución da <a href="/w/index.php?title=Metric_Act_of_1866&action=edit&redlink=1" class="new" title="Metric Act of 1866 (a páxina aínda non existe)">Metric Act of 1866</a> que permitía o uso do metro nos Estados Unidos e probablemente tamén tivo un papel na elección do metro como unidade científica internacional de lonxitude e na proposta da European Arc Measurement para "establecer unha <a href="/wiki/Oficina_Internacional_de_Pesos_e_Medidas" title="Oficina Internacional de Pesos e Medidas">oficina internacional europea de pesos e medidas</a>".<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span>[</span>37<span>]</span></a></sup><sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span>[</span>38<span>]</span></a></sup> </p><p>En 1867, na segunda conferencia xeral da <a href="/w/index.php?title=Asociaci%C3%B3n_Internacional_de_Xeodesia&action=edit&redlink=1" class="new" title="Asociación Internacional de Xeodesia (a páxina aínda non existe)">Asociación Internacional de Xeodesia</a> celebrada en <a href="/wiki/Berl%C3%ADn" title="Berlín">Berlín</a>, discutiuse a cuestión dunha unidade de lonxitude estándar internacional para combinar as medidas feitas en diferentes países para determinar o tamaño e a forma da Terra.<sup id="cite_ref-:0_39-0" class="reference"><a href="#cite_note-:0-39"><span>[</span>39<span>]</span></a></sup><sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span>[</span>40<span>]</span></a></sup><sup id="cite_ref-IAG_41-0" class="reference"><a href="#cite_note-IAG-41"><span>[</span>41<span>]</span></a></sup> A conferencia recomendou a adopción do metro en substitución da toesa e a creación dunha comisión internacional do metro, segundo a proposta de <a href="/w/index.php?title=Johann_Jacob_Baeyer&action=edit&redlink=1" class="new" title="Johann Jacob Baeyer (a páxina aínda non existe)">Johann Jacob Baeyer</a>, <a href="/w/index.php?title=Adolphe_Hirsch&action=edit&redlink=1" class="new" title="Adolphe Hirsch (a páxina aínda non existe)">Adolphe Hirsch</a> e <a href="/w/index.php?title=Carlos_Ib%C3%A1%C3%B1ez_e_Ib%C3%A1%C3%B1ez_de_Ibero&action=edit&redlink=1" class="new" title="Carlos Ibáñez e Ibáñez de Ibero (a páxina aínda non existe)">Carlos Ibáñez e Ibáñez de Ibero</a> que idearan dous estándares xeodésicos calibrados no metro para trazar o mapa de España.<sup id="cite_ref-Ross-James_42-0" class="reference"><a href="#cite_note-Ross-James-42"><span>[</span>42<span>]</span></a></sup><sup id="cite_ref-:0_39-1" class="reference"><a href="#cite_note-:0-39"><span>[</span>39<span>]</span></a></sup><sup id="cite_ref-IAG_41-1" class="reference"><a href="#cite_note-IAG-41"><span>[</span>41<span>]</span></a></sup><sup id="cite_ref-Brunner_43-0" class="reference"><a href="#cite_note-Brunner-43"><span>[</span>43<span>]</span></a></sup> A trazabilidade da medida entre o toesa e o metro asegurouse mediante a comparación do estándar español co estándar ideado por <a href="/w/index.php?title=Jean-Charles_de_Borda&action=edit&redlink=1" class="new" title="Jean-Charles de Borda (a páxina aínda non existe)">Borda</a> e <a href="/wiki/Antoine_Lavoisier" title="Antoine Lavoisier">Lavoisier</a> para o levantamento do arco do meridiano que conecta Dunkerque con Barcelona.<sup id="cite_ref-Soler_44-0" class="reference"><a href="#cite_note-Soler-44"><span>[</span>44<span>]</span></a></sup><sup id="cite_ref-Brunner_43-1" class="reference"><a href="#cite_note-Brunner-43"><span>[</span>43<span>]</span></a></sup><sup id="cite_ref-Wolf_45-0" class="reference"><a href="#cite_note-Wolf-45"><span>[</span>45<span>]</span></a></sup> </p><p>Na década de 1870 e á luz da precisión moderna, celebráronse unha serie de conferencias internacionais para deseñar novos estándares métricos. A Convención do Metro (Convention du Mètre) de 1875 obrigaba a establecer unha <a href="/wiki/Oficina_Internacional_de_Pesos_e_Medidas" title="Oficina Internacional de Pesos e Medidas">Oficina Internacional de Pesos e Medidas</a> (BIPM) permanente que se situaría en <a href="/w/index.php?title=S%C3%A8vres&action=edit&redlink=1" class="new" title="Sèvres (a páxina aínda non existe)">Sèvres</a>, Francia. Esta nova organización debía construír e conservar un prototipo de barra de medición, distribuír prototipos métricos nacionais e manter comparacións entre eles e os estándares de medida non métricos. A organización distribuíu tales barras o 28 de setembro de 1889 na primeira Conferencia Xeral de Pesos e Medidas, establecendo o "metro portotipo internacional" como a distancia entre dúas liñas nunha barra estándar composta por unha aliaxe de 90% de <a href="/wiki/Platino" title="Platino">platino</a> e un 10% de <a href="/wiki/Iridio" title="Iridio">iridio</a>, medido no <a href="/wiki/Punto_de_fusi%C3%B3n" title="Punto de fusión">punto de fusión</a> do xeo. O novo padrón foi depositado en cofres situados nos subterráneos do pavillón de Breteuil en <a href="/w/index.php?title=S%C3%A8vres&action=edit&redlink=1" class="new" title="Sèvres (a páxina aínda non existe)">Sèvres</a>, Oficina de Pesos e Medidas, nos arredores de París.<sup id="cite_ref-DenigGuedj_21-1" class="reference"><a href="#cite_note-DenigGuedj-21"><span>[</span>21<span>]</span></a></sup> </p><p>A comparación dos novos prototipos do metro entre si e co metro do Comité implicou o desenvolvemento de equipos de medida especiais e a definición dunha escala de temperatura reproducible. O traballo de <a href="/wiki/Termometr%C3%ADa" title="Termometría">termometría</a> do BIPM levou ao descubrimento de aliaxes especiais de <a href="/wiki/Ferro" title="Ferro">ferro</a>-<a href="/wiki/N%C3%ADquel" title="Níquel">níquel</a>, en particular o <a href="/w/index.php?title=Invar&action=edit&redlink=1" class="new" title="Invar (a páxina aínda non existe)">invar</a>, polo que o seu director, o físico suízo <a href="/wiki/Charles-Edouard_Guillaume" class="mw-redirect" title="Charles-Edouard Guillaume">Charles-Edouard Guillaume</a>, recibiu o <a href="/wiki/Premio_Nobel_de_F%C3%ADsica" title="Premio Nobel de Física">Premio Nobel de Física</a> en 1920.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span>[</span>46<span>]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Lonxitude_de_onda">Lonxitude de onda</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=8" title="Editar a sección: «Lonxitude de onda»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=8" title="Editar o código fonte da sección: Lonxitude de onda"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>En 1873, <a href="/wiki/James_Clerk_Maxwell" title="James Clerk Maxwell">James Clerk Maxwell</a> suxeriu que a luz emitida por un elemento podía usarse como estándar tanto para o metro como para o <a href="/wiki/Segundo" title="Segundo">segundo</a>. Estas dúas cantidades poderían usarse para definir a unidade de masa.<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span>[</span>47<span>]</span></a></sup> </p><p>En 1893, o metro estándar foi medido por primeira vez cun <a href="/wiki/Interfer%C3%B3metro" title="Interferómetro">interferómetro</a> por <a href="/wiki/Albert_Abraham_Michelson" title="Albert Abraham Michelson">Albert A. Michelson</a>, o inventor do dispositivo e defensor do uso dalgunha <a href="/wiki/Lonxitude_de_onda" title="Lonxitude de onda">lonxitude de onda</a> particular como estándar de lonxitude. En 1925, a <a href="/wiki/Interferometr%C3%ADa" title="Interferometría">interferometría</a> estaba en uso regular no BIPM. Non obstante, o prototipo internacional mantívose como estándar ata 1960, cando a XI Conferencia de Pesos e Medidas adoptou unha nova definición de metro en 1960: <style data-mw-deduplicate="TemplateStyles:r6856698">.mw-parser-output .flexquote{display:flex;flex-direction:column;background:var(--background-color-neutral-subtle,#f8f9fa);border-left:3px solid var(--border-color-subtle,#c8ccd1);font-size:90%;margin:1em 4em;padding:.4em .8em}.mw-parser-output .flexquote>.flex{display:flex;flex-direction:row}.mw-parser-output .flexquote>.flex>.quote{width:100%}.mw-parser-output .flexquote>.flex>.separator{border-left:1px solid var(--border-color-subtle,#c8ccd1);border-top:1px solid var(--border-color-subtle,#c8ccd1);margin:.4em .8em}.mw-parser-output .flexquote>.cite{text-align:right}@media all and (max-width:600px){.mw-parser-output .flexquote>.flex{flex-direction:column}}</style> </p> <blockquote class="flexquote"> <div class="flex"> <div class="quote">1. 650. 763,73 veces a <a href="/wiki/Lonxitude_de_onda" title="Lonxitude de onda">lonxitude de onda</a> no baleiro da radiación laranxa do átomo de <a href="/wiki/Cripton" title="Cripton">cripton</a>-86.<sup id="cite_ref-Marion_48-0" class="reference"><a href="#cite_note-Marion-48"><span>[</span>48<span>]</span></a></sup></div> </div> </blockquote> <p>A precisión era cincuenta veces superior á do padrón de 1889.<sup id="cite_ref-DenigGuedj_21-2" class="reference"><a href="#cite_note-DenigGuedj-21"><span>[</span>21<span>]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Velocidade_da_luz">Velocidade da luz</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=9" title="Editar a sección: «Velocidade da luz»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=9" title="Editar o código fonte da sección: Velocidade da luz"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A definición dada na XVII Conferencia Xeral da <a href="/w/index.php?title=Oficina_Internacional_de_Pesas_e_Medidas&action=edit&redlink=1" class="new" title="Oficina Internacional de Pesas e Medidas (a páxina aínda non existe)">Oficina Internacional de Pesas e Medidas</a>, vixente dende 1983, é a seguinte:<sup id="cite_ref-DenigGuedj_21-3" class="reference"><a href="#cite_note-DenigGuedj-21"><span>[</span>21<span>]</span></a></sup> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r6856698"> </p> <blockquote class="flexquote"> <div class="flex"> <div class="quote">Un metro é a distancia que percorre a luz no baleiro durante un intervalo de 1/299 792 458 de segundo.<sup id="cite_ref-Res1_49-0" class="reference"><a href="#cite_note-Res1-49"><span>[</span>49<span>]</span></a></sup></div> </div> </blockquote> <p>A precisión desta definición é trinta veces superior á do prototipo de 1960<sup id="cite_ref-DenigGuedj_21-4" class="reference"><a href="#cite_note-DenigGuedj-21"><span>[</span>21<span>]</span></a></sup> e fixou a velocidade da luz no baleiro como exactamente 299 792 458 m/s.<sup id="cite_ref-Res1_49-1" class="reference"><a href="#cite_note-Res1-49"><span>[</span>49<span>]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Liña_de_tempo"><span id="Li.C3.B1a_de_tempo"></span>Liña de tempo</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=10" title="Editar a sección: «Liña de tempo»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=10" title="Editar o código fonte da sección: Liña de tempo"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <table> <tbody><tr> <td><div class="timeline-wrapper"><map name="timeline_i125hzbuykxwu9nn6z6i9wadww5ry9a"></map><img usemap="#timeline_i125hzbuykxwu9nn6z6i9wadww5ry9a" src="//upload.wikimedia.org/wikipedia/gl/timeline/i125hzbuykxwu9nn6z6i9wadww5ry9a.png" /></div> </td> <td valign="top">A liña do tempo amósanos como foi mudando a definición do metro en distintas épocas: <ul><li><a href="/wiki/21_de_outubro" title="21 de outubro">21 de outubro</a> de <a href="/wiki/1983" title="1983">1983</a>: defínese o metro coma a distancia percorrida pola <a href="/wiki/Luz" title="Luz">luz</a> no baleiro durante 1/299 792 458 <a href="/wiki/Segundo" title="Segundo">segundos</a>.</li> <li><a href="/wiki/20_de_outubro" title="20 de outubro">20 de outubro</a> de <a href="/wiki/1960" title="1960">1960</a>: a XI Conferencia Xeral de Pesas e Medidas define o metro como 1 650 763,73 oscilacións no baleiro da onda da radiación emitida polo salto cuántico entre 2p<sup>10</sup> e 5d<sup>5</sup> dun átomo de <sup>86</sup><a href="/wiki/Cripton" title="Cripton">cripton</a>.</li> <li><a href="/wiki/6_de_outubro" title="6 de outubro">6 de outubro</a> de <a href="/wiki/1927" title="1927">1927</a>: a VII Conferencia Xeral de Pesas e Medidas define o metro como a distancia entre as dúas marcas do padrón de <a href="/wiki/Platino" title="Platino">platino</a> cun 10% de <a href="/wiki/Iridio" title="Iridio">iridio</a> a 0 <a href="/wiki/Grao_Celsius" class="mw-redirect" title="Grao Celsius">°C</a> e 1 <a href="/wiki/Atmosfera" title="Atmosfera">atmosfera</a>.</li> <li><a href="/wiki/28_de_setembro" title="28 de setembro">28 de setembro</a> de <a href="/wiki/1889" title="1889">1889</a>: a I Conferencia Xeral de Pesas e Medidas define o metro como a distancia entre as dúas marcas do padrón de aliaxe de <a href="/wiki/Platino" title="Platino">platino</a> cun 10 % de <a href="/wiki/Iridio" title="Iridio">iridio</a> a 0 <a href="/wiki/Celsius" title="Celsius">°C</a>.</li> <li><a href="/wiki/10_de_decembro" title="10 de decembro">10 de decembro</a> de <a href="/wiki/1799" title="1799">1799</a>: defínese o metro cun padrón de prata (o primeiro padrón, construído o <a href="/wiki/23_de_xu%C3%B1o" title="23 de xuño">23 de xuño</a> dese mesmo ano).</li> <li><a href="/wiki/1795" title="1795">1795</a>: créase un padrón provisional de <a href="/wiki/Lat%C3%B3n" title="Latón">latón</a>.</li> <li><a href="/wiki/30_de_marzo" title="30 de marzo">30 de marzo</a> de <a href="/wiki/1791" title="1791">1791</a>: defínese o metro como a dez millonésima parte dun meridiano dentro dun cuadrante (un cuarto da circunferencia polar da terra).</li> <li><a href="/wiki/8_de_maio" title="8 de maio">8 de maio</a> de <a href="/wiki/1790" title="1790">1790</a>: defínese o metro coa distancia percorrida por un péndulo determinado que ten un hemiperíodo dun <a href="/wiki/Segundo" title="Segundo">segundo</a>.</li></ul> </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Unidades_derivadas">Unidades derivadas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=11" title="Editar a sección: «Unidades derivadas»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=11" title="Editar o código fonte da sección: Unidades derivadas"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>O metro dá orixe a diversas unidades compostas ou derivadas, como: </p> <ul><li><a href="/wiki/Metro_cadrado" title="Metro cadrado">metro cadrado</a> (<a href="/wiki/Superficie" title="Superficie">superficie</a>)</li> <li><a href="/wiki/Metro_c%C3%BAbico" title="Metro cúbico">metro cúbico</a> (<a href="/wiki/Volume_(f%C3%ADsica)" class="mw-redirect" title="Volume (física)">volume</a>)</li> <li><a href="/wiki/Metro_por_segundo" title="Metro por segundo">metro por segundo</a> e <a href="/wiki/Quil%C3%B3metro_por_hora" title="Quilómetro por hora">quilómetro por hora</a> (<a href="/wiki/Velocidade" title="Velocidade">velocidade</a>)</li></ul> <div class="mw-heading mw-heading2"><h2 id="Notas">Notas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=12" title="Editar a sección: «Notas»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=12" title="Editar o código fonte da sección: Notas"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist columns references-column-width" style="-moz-column-width: 30em; -webkit-column-width: 30em; column-width: 30em; list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">Definicións no <a rel="nofollow" class="external text" href="http://academia.gal/dicionario/-/termo/micron"><i>Dicionario da Real Academia Galega</i></a> e no <a rel="nofollow" class="external text" href="http://portaldaspalabras.gal/dicionario/procura/micron">Portal das Palabras</a> para <i>micron</i>.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">Taylor & Thompson 2003, p. 11.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text">Definicións no <a rel="nofollow" class="external text" href="http://academia.gal/dicionario/-/termo/micra"><i>Dicionario da Real Academia Galega</i></a> e no <a rel="nofollow" class="external text" href="http://portaldaspalabras.gal/dicionario/procura/micra">Portal das Palabras</a> para <i>micra</i>.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text">Astin & Karo 1959</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><cite class="citation book">texte, Picard, Jean (1620–1682). Auteur du (1671). <a rel="nofollow" class="external text" href="https://gallica.bnf.fr/ark:/12148/btv1b7300361b"><i>Mesure de la terre [par l'abbé Picard]</i></a>. <i>Gallica</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_inglesa" title="Lingua inglesa">inglés</a>)</span>. pp. 3–4<span class="reference-accessdate">. Consultado o <span class="nowrap">2018-09-13</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Picard%2C+Jean+%281620%931682%29.+Auteur+du&rft.aulast=texte&rft.btitle=Mesure+de+la+terre+%5Bpar+l%27abb%C3%A9+Picard%5D&rft.date=1671&rft.genre=book&rft.pages=3-4&rft_id=https%3A%2F%2Fgallica.bnf.fr%2Fark%3A%2F12148%2Fbtv1b7300361b&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"><cite class="citation book">Bigourdan, Guillaume (1901). <a rel="nofollow" class="external text" href="https://archive.org/details/lesystmemtri00bigo"><i>Le système métrique des poids et mesures ; son établissement et sa propagation graduelle, avec l'histoire des opérations qui ont servi à déterminer le mètre et le kilogramme</i></a>. University of Ottawa. Paris : Gauthier-Villars. pp. <a rel="nofollow" class="external text" href="https://archive.org/details/lesystmemtri00bigo/page/6">6</a>–8.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Guillaume&rft.aulast=Bigourdan&rft.btitle=Le+syst%C3%A8me+m%C3%A9trique+des+poids+et+mesures+%3B+son+%C3%A9tablissement+et+sa+propagation+graduelle%2C+avec+l%27histoire+des+op%C3%A9rations+qui+ont+servi+%C3%A0+d%C3%A9terminer+le+m%C3%A8tre+et+le+kilogramme&rft.date=1901&rft.genre=book&rft.pages=6-8&rft.pub=Paris+%3A+Gauthier-Villars&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Flesystmemtri00bigo&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><cite class="citation book">Poynting, John Henry; Thomson, Joseph John (1907). <a rel="nofollow" class="external text" href="https://archive.org/details/bub_gb_TL4KAAAAIAAJ"><i>A Textbook of Physics</i></a> <span style="font-style: italic;">(en <a href="/wiki/Lingua_inglesa" title="Lingua inglesa">inglés</a>)</span>. C. Griffin. pp. <a rel="nofollow" class="external text" href="https://archive.org/details/bub_gb_TL4KAAAAIAAJ/page/n30">20</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.au=Thomson%2C+Joseph+John&rft.aufirst=John+Henry&rft.aulast=Poynting&rft.btitle=A+Textbook+of+Physics&rft.date=1907&rft.genre=book&rft.pages=20&rft.pub=C.+Griffin&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fbub_gb_TL4KAAAAIAAJ&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><a href="#cite_ref-8">↑</a></span> <span class="reference-text"><cite class="citation book">Picard, Jean (1620–1682) Auteur du texte (1671). <a rel="nofollow" class="external text" href="https://gallica.bnf.fr/ark:/12148/btv1b7300361b"><i>Mesure de la terre [par l'abbé Picard]</i></a> <span style="font-style: italic;">(en <a href="/wiki/Lingua_inglesa" title="Lingua inglesa">inglés</a>)</span>. pp. 3–5.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Jean+%281620%931682%29+Auteur+du+texte&rft.aulast=Picard&rft.btitle=Mesure+de+la+terre+%5Bpar+l%27abb%C3%A9+Picard%5D&rft.date=1671&rft.genre=book&rft.pages=3-5&rft_id=https%3A%2F%2Fgallica.bnf.fr%2Fark%3A%2F12148%2Fbtv1b7300361b&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><a href="#cite_ref-9">↑</a></span> <span class="reference-text"><cite class="citation book">Bond, Peter, (1948- ...). (2014). <i>L'exploration du système solaire</i>. Dupont-Bloch, Nicolas. ([Édition française revue et corrigée] ed.). Louvain-la-Neuve: De Boeck. pp. 5–6. <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Especial:Fontes_bibliogr%C3%A1ficas/9782804184964" title="Especial:Fontes bibliográficas/9782804184964">9782804184964</a>. <a href="/wiki/Online_Computer_Library_Center" title="Online Computer Library Center">OCLC</a> <a rel="nofollow" class="external text" href="//www.worldcat.org/oclc/894499177">894499177</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.au=Bond%2C+Peter%2C+%281948-+...%29.&rft.btitle=L%27exploration+du+syst%C3%A8me+solaire&rft.date=2014&rft.edition=%5B%C3%89dition+fran%C3%A7aise+revue+et+corrig%C3%A9e%5D&rft.genre=book&rft.isbn=9782804184964&rft.pages=5-6&rft.place=Louvain-la-Neuve&rft.pub=De+Boeck&rft_id=info%3Aoclcnum%2F894499177&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-FOOTNOTEClarkeHelmert1911802-10"><span class="mw-cite-backlink"><a href="#cite_ref-FOOTNOTEClarkeHelmert1911802_10-0">↑</a></span> <span class="reference-text"><a href="#CITEREFClarkeHelmert1911">Clarke & Helmert 1911</a>, p. 802.</span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><a href="#cite_ref-11">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="http://350ans.obspm.fr/fr/evenement-frise/premiere-determination-distance-terre-soleil">"Première détermination de la distance de la Terre au Soleil | Les 350 ans de l'Observatoire de Paris"</a>. <i>350ans.obspm.fr</i><span class="reference-accessdate">. Consultado o <span class="nowrap">2019-05-14</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Premi%C3%A8re+d%C3%A9termination+de+la+distance+de+la+Terre+au+Soleil+%7C+Les+350+ans+de+l%27Observatoire+de+Paris&rft.genre=unknown&rft.jtitle=350ans.obspm.fr&rft_id=http%3A%2F%2F350ans.obspm.fr%2Ffr%2Fevenement-frise%2Fpremiere-determination-distance-terre-soleil&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><a href="#cite_ref-12">↑</a></span> <span class="reference-text"><cite class="citation web">Buffet, Loriane. <a rel="nofollow" class="external text" href="http://expositions.obspm.fr/cassini/pages/travaux4.php">"Cassini, l'Astronome du roi et le satellite – Exposition virtuelle"</a>. <i>expositions.obspm.fr</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_francesa" title="Lingua francesa">francés</a>)</span><span class="reference-accessdate">. Consultado o <span class="nowrap">2019-05-14</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Cassini%2C+l%27Astronome+du+roi+et+le+satellite+%93+Exposition+virtuelle&rft.aufirst=Loriane&rft.aulast=Buffet&rft.genre=unknown&rft.jtitle=expositions.obspm.fr&rft_id=http%3A%2F%2Fexpositions.obspm.fr%2Fcassini%2Fpages%2Ftravaux4.php&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-FOOTNOTEClarkeHelmert1911801-13"><span class="mw-cite-backlink"><a href="#cite_ref-FOOTNOTEClarkeHelmert1911801_13-0">↑</a></span> <span class="reference-text"><a href="#CITEREFClarkeHelmert1911">Clarke & Helmert 1911</a>, p. 801.</span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><a href="#cite_ref-14">↑</a></span> <span class="reference-text"><cite class="citation book">Badinter, Élisabeth (2018). <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/1061216207"><i>Les passions intellectuelles</i></a>. Normandie roto impr.). Paris: Robert Laffont. <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Especial:Fontes_bibliogr%C3%A1ficas/978-2-221-20345-3" title="Especial:Fontes bibliográficas/978-2-221-20345-3">978-2-221-20345-3</a>. <a href="/wiki/Online_Computer_Library_Center" title="Online Computer Library Center">OCLC</a> <a rel="nofollow" class="external text" href="//www.worldcat.org/oclc/1061216207">1061216207</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=%C3%89lisabeth&rft.aulast=Badinter&rft.btitle=Les+passions+intellectuelles&rft.date=2018&rft.genre=book&rft.isbn=978-2-221-20345-3&rft.place=Paris&rft.pub=Robert+Laffont&rft_id=https%3A%2F%2Fwww.worldcat.org%2Foclc%2F1061216207&rft_id=info%3Aoclcnum%2F1061216207&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><a href="#cite_ref-15">↑</a></span> <span class="reference-text">Estrada, H. Ruiz, J. Triana, J. <a rel="nofollow" class="external text" href="http://bibliotecadigital.univalle.edu.co/bitstream/10893/4105/1/08Art.pdf">El origen del metro y la confianza en la matemática</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170117103632/http://bibliotecadigital.univalle.edu.co/bitstream/10893/4105/1/08Art.pdf">Arquivado</a> 17 de xaneiro de 2017 en <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>., 2011, ISSN 0120-6788, págs. 89-101.</span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><a href="#cite_ref-16">↑</a></span> <span class="reference-text"><cite class="citation book">Tipler, Paul A.; Mosca, Gene (2004). <a rel="nofollow" class="external text" href="https://archive.org/details/physicsforscient00tipl_706"><i>Physics for Scientists and Engineers</i></a> (5th ed.). W.H. Freeman. p. <a rel="nofollow" class="external text" href="https://archive.org/details/physicsforscient00tipl_706/page/n10">3</a>. <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Especial:Fontes_bibliogr%C3%A1ficas/0716783398" title="Especial:Fontes bibliográficas/0716783398">0716783398</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.au=Mosca%2C+Gene&rft.aufirst=Paul+A.&rft.aulast=Tipler&rft.btitle=Physics+for+Scientists+and+Engineers&rft.date=2004&rft.edition=5th&rft.genre=book&rft.isbn=0716783398&rft.pages=3&rft.pub=W.H.+Freeman&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fphysicsforscient00tipl_706&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><a href="#cite_ref-17">↑</a></span> <span class="reference-text"><cite class="citation book">Agnoli, Paolo (2004). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=Yr6lLFUC2ggC"><i>Il senso della misura: la codifica della realtà tra filosofia, scienza ed esistenza umana</i></a> <span style="font-style: italic;">(en <a href="/wiki/Lingua_italiana" title="Lingua italiana">italiano</a>)</span>. Armando Editore. pp. 93–94,101. <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Especial:Fontes_bibliogr%C3%A1ficas/9788883585326" title="Especial:Fontes bibliográficas/9788883585326">9788883585326</a><span class="reference-accessdate">. Consultado o 13 de outubro de 2015</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Paolo&rft.aulast=Agnoli&rft.btitle=Il+senso+della+misura%3A+la+codifica+della+realt%C3%A0+tra+filosofia%2C+scienza+ed+esistenza+umana&rft.date=2004&rft.genre=book&rft.isbn=9788883585326&rft.pages=93-94%2C101&rft.pub=Armando+Editore&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DYr6lLFUC2ggC&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><a href="#cite_ref-18">↑</a></span> <span class="reference-text"><cite class="citation book"><a rel="nofollow" class="external text" href="http://gallica.bnf.fr/ark:/12148/bpt6k571270/f1.image"><i>Rapport sur le choix d'une unité de mesure, lu à l'Académie des sciences, le 19 mars 1791</i></a> <span style="font-style: italic;">(en <a href="/wiki/Lingua_francesa" title="Lingua francesa">francés</a>)</span>. Gallica.bnf.fr. 15 de outubro de 2007<span class="reference-accessdate">. Consultado o 25 de marzo de 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.btitle=Rapport+sur+le+choix+d%27une+unit%C3%A9+de+mesure%2C+lu+%C3%A0+l%27Acad%C3%A9mie+des+sciences%2C+le+19+mars+1791&rft.genre=book&rft.pub=Gallica.bnf.fr&rft_id=http%3A%2F%2Fgallica.bnf.fr%2Fark%3A%2F12148%2Fbpt6k571270%2Ff1.image&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><a href="#cite_ref-19">↑</a></span> <span class="reference-text">Paolo Agnoli and Giulio D’Agostini,<a rel="nofollow" class="external text" href="https://arxiv.org/abs/physics/0412078">'Why does the meter beat the second?,'</a> decembro de 2004 pp.1–29.</span> </li> <li id="cite_note-Oxford-20"><span class="mw-cite-backlink"><a href="#cite_ref-Oxford_20-0">↑</a></span> <span class="reference-text"><a href="/wiki/Oxford_English_Dictionary" title="Oxford English Dictionary">Oxford English Dictionary</a>, Clarendon Press 2nd ed.1989, vol.IX p.697 col.3.</span> </li> <li id="cite_note-DenigGuedj-21"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-DenigGuedj_21-0">21,0</a></sup> <sup><a href="#cite_ref-DenigGuedj_21-1">21,1</a></sup> <sup><a href="#cite_ref-DenigGuedj_21-2">21,2</a></sup> <sup><a href="#cite_ref-DenigGuedj_21-3">21,3</a></sup> <sup><a href="#cite_ref-DenigGuedj_21-4">21,4</a></sup></span> <span class="reference-text">Denis Guedj, <i>El metro del mundo</i>, Anagrama, Barcelona, 2000, <a href="/wiki/Especial:Fontes_bibliogr%C3%A1ficas/8433970186" class="internal mw-magiclink-isbn">ISBN 84-339-7018-6</a>, págs. 330-331</span> </li> <li id="cite_note-22"><span class="mw-cite-backlink"><a href="#cite_ref-22">↑</a></span> <span class="reference-text"><cite class="citation web">Ramani, Madhvi. <a rel="nofollow" class="external text" href="https://www.bbc.com/travel/story/20180923-how-france-created-the-metric-system">"How France created the metric system"</a>. <i>www.bbc.com</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_inglesa" title="Lingua inglesa">inglés</a>)</span><span class="reference-accessdate">. Consultado o <span class="nowrap">2019-05-21</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=How+France+created+the+metric+system&rft.aufirst=Madhvi&rft.aulast=Ramani&rft.genre=unknown&rft.jtitle=www.bbc.com&rft_id=http%3A%2F%2Fwww.bbc.com%2Ftravel%2Fstory%2F20180923-how-france-created-the-metric-system&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-Levallois-23"><span class="mw-cite-backlink"><a href="#cite_ref-Levallois_23-0">↑</a></span> <span class="reference-text"><cite class="citation web">Levallois, Jean-Jacques (1986). <a rel="nofollow" class="external text" href="https://gallica.bnf.fr/ark:/12148/bpt6k5470853s">"La Vie des sciences"</a>. <i>Gallica</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_francesa" title="Lingua francesa">francés</a>)</span>. pp. 288–290, 269, 276–277, 283<span class="reference-accessdate">. Consultado o <span class="nowrap">2019-05-13</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=La+Vie+des+sciences&rft.aufirst=Jean-Jacques&rft.aulast=Levallois&rft.date=1986&rft.genre=unknown&rft.jtitle=Gallica&rft.pages=288-290%2C+269%2C+276-277%2C+283&rft_id=https%3A%2F%2Fgallica.bnf.fr%2Fark%3A%2F12148%2Fbpt6k5470853s&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-FOOTNOTEClarkeHelmert1911803–804-24"><span class="mw-cite-backlink"><a href="#cite_ref-FOOTNOTEClarkeHelmert1911803–804_24-0">↑</a></span> <span class="reference-text"><a href="#CITEREFClarkeHelmert1911">Clarke & Helmert 1911</a>, pp. 803–804.</span> </li> <li id="cite_note-:4-25"><span class="mw-cite-backlink"><a href="#cite_ref-:4_25-0">↑</a></span> <span class="reference-text"><cite class="citation book">Ibáñez e Ibáñez de Ibero, Carlos (1881). <a rel="nofollow" class="external text" href="http://www.rac.es/ficheros/Discursos/DR_20080825_173.pdf"><i>Discursos leidos ante la Real Academia de Ciencias Exactas Fisicas y Naturales en la recepcion pública de Don Joaquin Barraquer y Rovira</i></a> <span style="font-size:85%;">(PDF)</span>. Madrid: Imprenta de la Viuda e Hijo de D.E. Aguado. pp. 70–78.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Carlos&rft.aulast=Ib%C3%A1%C3%B1ez+e+Ib%C3%A1%C3%B1ez+de+Ibero&rft.btitle=Discursos+leidos+ante+la+Real+Academia+de+Ciencias+Exactas+Fisicas+y+Naturales+en+la+recepcion+p%C3%BAblica+de+Don+Joaquin+Barraquer+y+Rovira&rft.date=1881&rft.genre=book&rft.pages=70-78&rft.place=Madrid&rft.pub=Imprenta+de+la+Viuda+e+Hijo+de+D.E.+Aguado&rft_id=http%3A%2F%2Fwww.rac.es%2Fficheros%2FDiscursos%2FDR_20080825_173.pdf&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-unesco-26"><span class="mw-cite-backlink"><a href="#cite_ref-unesco_26-0">↑</a></span> <span class="reference-text"><cite class="citation news"><a rel="nofollow" class="external text" href="https://whc.unesco.org/uploads/nominations/1187.pdf">"Nomination of the Struve geodetic arc for inscription on the World Heritage List"</a> <span style="font-size:85%;">(PDF)</span><span class="reference-accessdate">. Consultado o <span class="nowrap">2019-05-13</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Nomination+of+the+Struve+geodetic+arc+for+inscription+on+the+World+Heritage+List&rft.genre=article&rft_id=https%3A%2F%2Fwhc.unesco.org%2Fuploads%2Fnominations%2F1187.pdf&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-27"><span class="mw-cite-backlink"><a href="#cite_ref-27">↑</a></span> <span class="reference-text"><cite class="citation journal">Hirsch, Adolphe (1861). <a rel="nofollow" class="external text" href="https://dx.doi.org/10.5169/seals-87978">"Expériences chronoscopiques sur la vitesse des différentes sensations et de la transmission nerveuse"</a>. <i>E-Periodica</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_francesa" title="Lingua francesa">francés</a>)</span>. <a href="/wiki/Digital_object_identifier" title="Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.5169%2Fseals-87978">10.5169/seals-87978</a><span class="reference-accessdate">. Consultado o <span class="nowrap">2021-04-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Exp%C3%A9riences+chronoscopiques+sur+la+vitesse+des+diff%C3%A9rentes+sensations+et+de+la+transmission+nerveuse&rft.aufirst=Adolphe&rft.aulast=Hirsch&rft.date=1861&rft.genre=article&rft.jtitle=E-Periodica&rft_id=https%3A%2F%2Fdx.doi.org%2F10.5169%2Fseals-87978&rft_id=info%3Adoi%2F10.5169%2Fseals-87978&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-28"><span class="mw-cite-backlink"><a href="#cite_ref-28">↑</a></span> <span class="reference-text"><cite class="citation journal">Débarbat, Suzanne; Quinn, Terry (2019-01-01). <a rel="nofollow" class="external text" href="https://www.sciencedirect.com/science/article/pii/S1631070518301695">"Les origines du système métrique en France et la Convention du mètre de 1875, qui a ouvert la voie au Système international d'unités et à sa révision de 2018"</a>. <i>Comptes Rendus Physique</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_inglesa" title="Lingua inglesa">inglés</a>)</span> <b>20</b> (1–2): 6–21. <a href="/wiki/ISSN" title="ISSN">ISSN</a> <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1631-0705">1631-0705</a>. <a href="/wiki/Digital_object_identifier" title="Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1016%2Fj.crhy.2018.12.002">10.1016/j.crhy.2018.12.002</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Les+origines+du+syst%C3%A8me+m%C3%A9trique+en+France+et+la+Convention+du+m%C3%A8tre+de+1875%2C+qui+a+ouvert+la+voie+au+Syst%C3%A8me+international+d%27unit%C3%A9s+et+%C3%A0+sa+r%C3%A9vision+de+2018&rft.au=Quinn%2C+Terry&rft.aufirst=Suzanne&rft.aulast=D%C3%A9barbat&rft.date=2019-01-01&rft.genre=article&rft.issn=1631-0705&rft.issue=1%932&rft.jtitle=Comptes+Rendus+Physique&rft.pages=6-21&rft.volume=20&rft_id=https%3A%2F%2Fwww.sciencedirect.com%2Fscience%2Farticle%2Fpii%2FS1631070518301695&rft_id=info%3Adoi%2F10.1016%2Fj.crhy.2018.12.002&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><a href="#cite_ref-29">↑</a></span> <span class="reference-text"><cite class="citation book"><i>Géophysique in Encyclopedia Universalis</i>. Encyclopedia Universalis. 1996. pp. Vol 10, p. 370. <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Especial:Fontes_bibliogr%C3%A1ficas/978-2-85229-290-1" title="Especial:Fontes bibliográficas/978-2-85229-290-1">978-2-85229-290-1</a>. <a href="/wiki/Online_Computer_Library_Center" title="Online Computer Library Center">OCLC</a> <a rel="nofollow" class="external text" href="//www.worldcat.org/oclc/36747385">36747385</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.btitle=G%C3%A9ophysique+in+Encyclopedia+Universalis&rft.date=1996&rft.genre=book&rft.isbn=978-2-85229-290-1&rft.pages=Vol+10%2C+p.+370&rft.pub=Encyclopedia+Universalis&rft_id=info%3Aoclcnum%2F36747385&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-30"><span class="mw-cite-backlink"><a href="#cite_ref-30">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20201020182849/https://public.wmo.int/en/about-us/who-we-are/history-IMO">"History of IMO"</a>. <i>World Meteorological Organization</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_inglesa" title="Lingua inglesa">inglés</a>)</span>. 2015-12-08. Arquivado dende <a rel="nofollow" class="external text" href="https://public.wmo.int/en/about-us/who-we-are/history-IMO">o orixinal</a> o 20 de outubro de 2020<span class="reference-accessdate">. Consultado o <span class="nowrap">2021-03-16</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=History+of+IMO&rft.date=2015-12-08&rft.genre=unknown&rft.jtitle=World+Meteorological+Organization&rft_id=https%3A%2F%2Fpublic.wmo.int%2Fen%2Fabout-us%2Fwho-we-are%2Fhistory-IMO&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-31"><span class="mw-cite-backlink"><a href="#cite_ref-31">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://hls-dhs-dss.ch/articles/028982/2014-11-11/">"Wild, Heinrich"</a>. <i>hls-dhs-dss.ch</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_alem%C3%A1" title="Lingua alemá">alemán</a>)</span><span class="reference-accessdate">. Consultado o <span class="nowrap">2021-03-16</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Wild%2C+Heinrich&rft.genre=unknown&rft.jtitle=hls-dhs-dss.ch&rft_id=https%3A%2F%2Fhls-dhs-dss.ch%2Farticles%2F028982%2F2014-11-11%2F&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-32"><span class="mw-cite-backlink"><a href="#cite_ref-32">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20210124084245/https://www.bipm.org/utils/common/pdf/obituaries/1903_CIPM_CH%26RU_WILD-Heinrich.pdf">"Heinrich VON WILD (1833-1902) in COMlTÉ INTERNATIONAL DES POIDS ET MESURES. PROCÈS-VERBAUX DES SÉANCES. DEUXIÈME SÉRIE. TOME II. SESSION DE 1903."</a> <span style="font-size:85%;">(PDF)</span>. <i>BIPM</i>. 1903. Arquivado dende <a rel="nofollow" class="external text" href="https://www.bipm.org/utils/common/pdf/obituaries/1903_CIPM_CH&RU_WILD-Heinrich.pdf">o orixinal</a> <span style="font-size:85%;">(PDF)</span> o 24 de xaneiro de 2021<span class="reference-accessdate">. Consultado o 10 de xuño de 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Heinrich+VON+WILD+%281833-1902%29+in+COMlT%C3%89+INTERNATIONAL+DES+POIDS+ET+MESURES.+PROC%C3%88S-VERBAUX+DES+S%C3%89ANCES.+DEUXI%C3%88ME+S%C3%89RIE.+TOME+II.+SESSION+DE+1903.&rft.date=1903&rft.genre=unknown&rft.jtitle=BIPM&rft_id=https%3A%2F%2Fwww.bipm.org%2Futils%2Fcommon%2Fpdf%2Fobituaries%2F1903_CIPM_CH%26RU_WILD-Heinrich.pdf&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-33"><span class="mw-cite-backlink"><a href="#cite_ref-33">↑</a></span> <span class="reference-text"><cite class="citation book">Poupard, James (1825). <a rel="nofollow" class="external text" href="https://www.biodiversitylibrary.org/item/26092"><i>Transactions of the American Philosophical Society</i></a> <b>2</b>. Philadelphia: Abraham Small. pp. 234–240, 252–253, 274, 278.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=James&rft.aulast=Poupard&rft.btitle=Transactions+of+the+American+Philosophical+Society&rft.date=1825&rft.genre=book&rft.pages=234-240%2C+252-253%2C+274%2C+278&rft.place=Philadelphia&rft.pub=Abraham+Small&rft_id=https%3A%2F%2Fwww.biodiversitylibrary.org%2Fitem%2F26092&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-34"><span class="mw-cite-backlink"><a href="#cite_ref-34">↑</a></span> <span class="reference-text"><cite class="citation journal">Cajori, Florian (1921). <a rel="nofollow" class="external text" href="https://www.jstor.org/stable/6721">"Swiss Geodesy and the United States Coast Survey"</a>. <i>The Scientific Monthly</i> <b>13</b> (2): 117–129. <a href="/wiki/ISSN" title="ISSN">ISSN</a> <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/0096-3771">0096-3771</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Swiss+Geodesy+and+the+United+States+Coast+Survey&rft.aufirst=Florian&rft.aulast=Cajori&rft.date=1921&rft.genre=article&rft.issn=0096-3771&rft.issue=2&rft.jtitle=The+Scientific+Monthly&rft.pages=117-129&rft.volume=13&rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F6721&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-:2-35"><span class="mw-cite-backlink"><a href="#cite_ref-:2_35-0">↑</a></span> <span class="reference-text"><cite class="citation book">Clarke, Alexander Ross (1873). <i>XIII. Results of the comparisons of the standards of length of England, Austria, Spain, United States, Cape of Good Hope, and of a second Russian standard, made at the Ordnance Survey Office, Southampton. With a preface and notes on the Greek and Egyptian measures of length by Sir Henry James</i>. <i>Philosophical Transactions</i> <b>163</b> (Londres). p. 463. <a href="/wiki/Digital_object_identifier" title="Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1098%2Frstl.1873.0014">10.1098/rstl.1873.0014</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Alexander+Ross&rft.aulast=Clarke&rft.btitle=XIII.+Results+of+the+comparisons+of+the+standards+of+length+of+England%2C+Austria%2C+Spain%2C+United+States%2C+Cape+of+Good+Hope%2C+and+of+a+second+Russian+standard%2C+made+at+the+Ordnance+Survey+Office%2C+Southampton.+With+a+preface+and+notes+on+the+Greek+and+Egyptian+measures+of+length+by+Sir+Henry+James&rft.date=1873&rft.genre=book&rft.pages=463&rft.place=Londres&rft_id=info%3Adoi%2F10.1098%2Frstl.1873.0014&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-FOOTNOTEBigourdan19018,_158–159-36"><span class="mw-cite-backlink"><a href="#cite_ref-FOOTNOTEBigourdan19018,_158–159_36-0">↑</a></span> <span class="reference-text"><a href="#CITEREFBigourdan1901">Bigourdan 1901</a>, pp. 8, 158–159.</span> </li> <li id="cite_note-37"><span class="mw-cite-backlink"><a href="#cite_ref-37">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://usma.org/laws-and-bills/metric-act-of-1866#locale-notification">"Metric Act of 1866 – US Metric Association"</a>. <i>usma.org</i><span class="reference-accessdate">. Consultado o <span class="nowrap">2021-03-15</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Metric+Act+of+1866+%93+US+Metric+Association&rft.genre=unknown&rft.jtitle=usma.org&rft_id=https%3A%2F%2Fusma.org%2Flaws-and-bills%2Fmetric-act-of-1866%23locale-notification&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-38"><span class="mw-cite-backlink"><a href="#cite_ref-38">↑</a></span> <span class="reference-text"><cite class="citation book"><a rel="nofollow" class="external text" href="http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:108187:4/component/escidoc:272449/Generalbericht.mitteleurop%C3%A4ische.Gradmessung%201867.pdf"><i>Bericht über die Verhandlungen der vom 30. September bis 7. October 1867 zu BERLIN abgehaltenen allgemeinen Conferenz der Europäischen Gradmessung</i></a> <span style="font-size:85%;">(PDF)</span> <span style="font-style: italic;">(en <a href="/wiki/Lingua_alem%C3%A1" title="Lingua alemá">alemán</a>)</span>. Berlín: Central-Bureau der Europäischen Gradmessung. 1868. pp. 123–134.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.btitle=Bericht+%C3%BCber+die+Verhandlungen+der+vom+30.+September+bis+7.+October+1867+zu+BERLIN+abgehaltenen+allgemeinen+Conferenz+der+Europ%C3%A4ischen+Gradmessung&rft.date=1868&rft.genre=book&rft.pages=123-134&rft.place=Berl%C3n&rft.pub=Central-Bureau+der+Europ%C3%A4ischen+Gradmessung&rft_id=http%3A%2F%2Fgfzpublic.gfz-potsdam.de%2Fpubman%2Fitem%2Fescidoc%3A108187%3A4%2Fcomponent%2Fescidoc%3A272449%2FGeneralbericht.mitteleurop%25C3%25A4ische.Gradmessung%25201867.pdf&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-:0-39"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-:0_39-0">39,0</a></sup> <sup><a href="#cite_ref-:0_39-1">39,1</a></sup></span> <span class="reference-text"><cite class="citation web">Hirsch, Adolphe (1891). <a rel="nofollow" class="external text" href="http://www.bipm.org/utils/common/pdf/obituaries/1891_CIPM_ES_IBANEZ-Don-Carlos.pdf">"Don Carlos IBANEZ (1825–1891)"</a> <span style="font-size:85%;">(PDF)</span>. <i>Bureau International des Poids et Mesures</i>. p. 8<span class="reference-accessdate">. Consultado o 22 de maio de 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Don+Carlos+IBANEZ+%281825%931891%29&rft.aufirst=Adolphe&rft.aulast=Hirsch&rft.date=1891&rft.genre=unknown&rft.jtitle=Bureau+International+des+Poids+et+Mesures&rft.pages=8&rft_id=http%3A%2F%2Fwww.bipm.org%2Futils%2Fcommon%2Fpdf%2Fobituaries%2F1891_CIPM_ES_IBANEZ-Don-Carlos.pdf&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-40"><span class="mw-cite-backlink"><a href="#cite_ref-40">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="http://www.bipm.org/en/measurement-units/history-si/international-metre-commission.html">"BIPM – International Metre Commission"</a>. <i>www.bipm.org</i><span class="reference-accessdate">. Consultado o 26 de maio de 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=BIPM+%93+International+Metre+Commission&rft.genre=unknown&rft.jtitle=www.bipm.org&rft_id=http%3A%2F%2Fwww.bipm.org%2Fen%2Fmeasurement-units%2Fhistory-si%2Finternational-metre-commission.html&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-IAG-41"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-IAG_41-0">41,0</a></sup> <sup><a href="#cite_ref-IAG_41-1">41,1</a></sup></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="http://www.iag-aig.org/index.php?tpl=text&id_c=80&id_t=143">"A Note on the History of the IAG"</a>. <i>IAG Homepage</i><span class="reference-accessdate">. Consultado o 26 de maio de 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=A+Note+on+the+History+of+the+IAG&rft.genre=unknown&rft.jtitle=IAG+Homepage&rft_id=http%3A%2F%2Fwww.iag-aig.org%2Findex.php%3Ftpl%3Dtext%26id_c%3D80%26id_t%3D143&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-Ross-James-42"><span class="mw-cite-backlink"><a href="#cite_ref-Ross-James_42-0">↑</a></span> <span class="reference-text"><cite class="citation journal">Ross, Clarke Alexander; James, Henry (1873-01-01). "XIII. Results of the comparisons of the standards of length of England, Austria, Spain, United States, Cape of Good Hope, and of a second Russian standard, made at the Ordnance Survey Office, Southampton. With a preface and notes on the Greek and Egyptian measures of length by Sir Henry James". <i>Philosophical Transactions of the Royal Society of London</i> <b>163</b>: 445–469. <a href="/wiki/Digital_object_identifier" title="Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1098%2Frstl.1873.0014">10.1098/rstl.1873.0014</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=XIII.+Results+of+the+comparisons+of+the+standards+of+length+of+England%2C+Austria%2C+Spain%2C+United+States%2C+Cape+of+Good+Hope%2C+and+of+a+second+Russian+standard%2C+made+at+the+Ordnance+Survey+Office%2C+Southampton.+With+a+preface+and+notes+on+the+Greek+and+Egyptian+measures+of+length+by+Sir+Henry+James&rft.au=James%2C+Henry&rft.aufirst=Clarke+Alexander&rft.aulast=Ross&rft.date=1873-01-01&rft.genre=article&rft.jtitle=Philosophical+Transactions+of+the+Royal+Society+of+London&rft.pages=445-469&rft.volume=163&rft_id=info%3Adoi%2F10.1098%2Frstl.1873.0014&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-Brunner-43"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Brunner_43-0">43,0</a></sup> <sup><a href="#cite_ref-Brunner_43-1">43,1</a></sup></span> <span class="reference-text"><cite class="citation web">Brunner, Jean (1857). <a rel="nofollow" class="external text" href="https://gallica.bnf.fr/ark:/12148/bpt6k3001w">"Comptes rendus hebdomadaires des séances de l'Académie des sciences / publiés... par MM. les secrétaires perpétuels"</a>. <i>Gallica</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_francesa" title="Lingua francesa">francés</a>)</span>. pp. 150–153<span class="reference-accessdate">. Consultado o <span class="nowrap">2019-05-15</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=Comptes+rendus+hebdomadaires+des+s%C3%A9ances+de+l%27Acad%C3%A9mie+des+sciences+%2F+publi%C3%A9s...+par+MM.+les+secr%C3%A9taires+perp%C3%A9tuels&rft.aufirst=Jean&rft.aulast=Brunner&rft.date=1857&rft.genre=unknown&rft.jtitle=Gallica&rft.pages=150-153&rft_id=https%3A%2F%2Fgallica.bnf.fr%2Fark%3A%2F12148%2Fbpt6k3001w&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-Soler-44"><span class="mw-cite-backlink"><a href="#cite_ref-Soler_44-0">↑</a></span> <span class="reference-text"><cite class="citation journal">Soler, T. (1997-02-01). "A profile of General Carlos Ibáñez e Ibáñez de Ibero: first president of the International Geodetic Association". <i>Journal of Geodesy</i> <span style="font-style: italic;">(en <a href="/wiki/Lingua_inglesa" title="Lingua inglesa">inglés</a>)</span> <b>71</b> (3): 176–188. <a href="/wiki/Bibcode" title="Bibcode">Bibcode</a>:<a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/1997JGeod..71..176S">1997JGeod..71..176S</a>. <a href="/wiki/ISSN" title="ISSN">ISSN</a> <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/1432-1394">1432-1394</a>. <a href="/wiki/Digital_object_identifier" title="Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1007%2Fs001900050086">10.1007/s001900050086</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=A+profile+of+General+Carlos+Ib%C3%A1%C3%B1ez+e+Ib%C3%A1%C3%B1ez+de+Ibero%3A+first+president+of+the+International+Geodetic+Association&rft.aufirst=T.&rft.aulast=Soler&rft.date=1997-02-01&rft.genre=article&rft.issn=1432-1394&rft.issue=3&rft.jtitle=Journal+of+Geodesy&rft.pages=176-188&rft.volume=71&rft_id=info%3Abibcode%2F1997JGeod..71..176S&rft_id=info%3Adoi%2F10.1007%2Fs001900050086&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-Wolf-45"><span class="mw-cite-backlink"><a href="#cite_ref-Wolf_45-0">↑</a></span> <span class="reference-text"><cite class="citation book">Wolf, Charles (1827–1918) Auteur du texte (1882). <a rel="nofollow" class="external text" href="https://gallica.bnf.fr/ark:/12148/bpt6k9807509c"><i>Recherches historiques sur les étalons de poids et mesures de l'Observatoire et les appareils qui ont servi à les construire / par M. C. Wolf...</i></a> <span style="font-style: italic;">(en <a href="/wiki/Lingua_francesa" title="Lingua francesa">francés</a>)</span>. pp. C.38–39, C.2–4.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Charles+%281827%931918%29+Auteur+du+texte&rft.aulast=Wolf&rft.btitle=Recherches+historiques+sur+les+%C3%A9talons+de+poids+et+mesures+de+l%27Observatoire+et+les+appareils+qui+ont+servi+%C3%A0+les+construire+%2F+par+M.+C.+Wolf...&rft.date=1882&rft.genre=book&rft.pages=C.38-39%2C+C.2-4&rft_id=https%3A%2F%2Fgallica.bnf.fr%2Fark%3A%2F12148%2Fbpt6k9807509c&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-46"><span class="mw-cite-backlink"><a href="#cite_ref-46">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170430075245/http://www.bipm.org/fr/measurement-units/history-si/evolution_metre.html">"BIPM – la définition du mètre"</a>. <i>www.bipm.org</i>. Arquivado dende <a rel="nofollow" class="external text" href="https://www.bipm.org/fr/measurement-units/history-si/evolution_metre.html">o orixinal</a> o 30 de abril de 2017<span class="reference-accessdate">. Consultado o <span class="nowrap">2019-05-15</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.atitle=BIPM+%93+la+d%C3%A9finition+du+m%C3%A8tre&rft.genre=unknown&rft.jtitle=www.bipm.org&rft_id=https%3A%2F%2Fwww.bipm.org%2Ffr%2Fmeasurement-units%2Fhistory-si%2Fevolution_metre.html&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-47"><span class="mw-cite-backlink"><a href="#cite_ref-47">↑</a></span> <span class="reference-text"><cite class="citation book"><a href="/wiki/James_Clerk_Maxwell" title="James Clerk Maxwell">Maxwell, James Clerk</a> (1873). <a rel="nofollow" class="external text" href="https://ia600209.us.archive.org/28/items/electricandmagne01maxwrich/electricandmagne01maxwrich.pdf"><i>A Treatise On Electricity and Magnetism</i></a> <span style="font-size:85%;">(PDF)</span> <b>1</b>. Londres: MacMillan and Co. p. 3.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=James+Clerk&rft.aulast=Maxwell&rft.btitle=A+Treatise+On+Electricity+and+Magnetism&rft.date=1873&rft.genre=book&rft.pages=3&rft.place=Londres&rft.pub=MacMillan+and+Co.&rft_id=https%3A%2F%2Fia600209.us.archive.org%2F28%2Fitems%2Felectricandmagne01maxwrich%2Felectricandmagne01maxwrich.pdf&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-Marion-48"><span class="mw-cite-backlink"><a href="#cite_ref-Marion_48-0">↑</a></span> <span class="reference-text"><cite class="citation book">Marion, Jerry B. (1982). <a rel="nofollow" class="external text" href="https://archive.org/details/physicsforscienc0000mari"><i>Physics For Science and Engineering</i></a>. CBS College Publishing. p. <a rel="nofollow" class="external text" href="https://archive.org/details/physicsforscienc0000mari/page/n169">3</a>. <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Especial:Fontes_bibliogr%C3%A1ficas/978-4-8337-0098-6" title="Especial:Fontes bibliográficas/978-4-8337-0098-6">978-4-8337-0098-6</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Jerry+B.&rft.aulast=Marion&rft.btitle=Physics+For+Science+and+Engineering&rft.date=1982&rft.genre=book&rft.isbn=978-4-8337-0098-6&rft.pages=3&rft.pub=CBS+College+Publishing&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fphysicsforscienc0000mari&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-Res1-49"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Res1_49-0">49,0</a></sup> <sup><a href="#cite_ref-Res1_49-1">49,1</a></sup></span> <span class="reference-text">A BIPM non fai distinción entre <a href="/w/index.php?title=Baleiro_cu%C3%A1ntico&action=edit&redlink=1" class="new" title="Baleiro cuántico (a páxina aínda non existe)">baleiro cuántico</a> e <a href="/wiki/Baleiro" title="Baleiro">espazo baleiro</a>. <a rel="nofollow" class="external text" href="http://www.bipm.org/en/CGPM/db/17/1/"><i>Resolution 1 of the 17th CGPM</i></a> (<a href="/w/index.php?title=Conferencia_Xeral_de_Pesas_e_Medidas&action=edit&redlink=1" class="new" title="Conferencia Xeral de Pesas e Medidas (a páxina aínda non existe)">CGPM</a>, 1984), recuperado da base de datos da <a href="/w/index.php?title=Oficina_Internacional_de_Pesas_e_Medidas&action=edit&redlink=1" class="new" title="Oficina Internacional de Pesas e Medidas (a páxina aínda non existe)">BIPM</a> (BIPM, n.d.) o 24 de agosto de 2008.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Véxase_tamén"><span id="V.C3.A9xase_tam.C3.A9n"></span>Véxase tamén</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=13" title="Editar a sección: «Véxase tamén»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=13" title="Editar o código fonte da sección: Véxase tamén"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <table role="presentation" class="mbox-small plainlinks sistersitebox" style="background-color:var(--background-color-neutral-subtle, #f8f9fa);border:1px solid var(--border-color-base, #a2a9b1);color:inherit"> <tbody><tr> <td class="mbox-image"><span class="noviewer" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></td> <td class="mbox-text plainlist"><a href="https://commons.wikimedia.org/wiki/Portada_galega" class="extiw" title="commons:Portada galega">Wikimedia Commons</a> ten máis contidos multimedia na categoría:  <i><b><a href="https://commons.wikimedia.org/wiki/Category:Metre" class="extiw" title="commons:Category:Metre">Metro</a> <span typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q11573" title="Modificar a ligazón no Wikidata"><img alt="Modificar a ligazón no Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/12px-Arbcom_ru_editing.svg.png" decoding="async" width="12" height="12" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/18px-Arbcom_ru_editing.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/63/Arbcom_ru_editing.svg/24px-Arbcom_ru_editing.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></b></i></td></tr> </tbody></table> <div class="mw-heading mw-heading3"><h3 id="Bibliografía"><span id="Bibliograf.C3.ADa"></span>Bibliografía</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=14" title="Editar a sección: «Bibliografía»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=14" title="Editar o código fonte da sección: Bibliografía"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite class="citation book">Bigourdan, Guillaume (1901). <a rel="nofollow" class="external text" href="https://archive.org/details/lesystmemtri00bigo"><i>Le système métrique des poids et mesures ; son établissement et sa propagation graduelle, avec l'histoire des opérations qui ont servi à déterminer le mètre et le kilogramme</i> [<i>The metric system of weights and measures; its establishment and gradual propagation, with the history of the operations which served to determine the meter and the kilogram</i>]</a>. París: Gauthier-Villars.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fgl.wikipedia.org%3AMetro&rft.aufirst=Guillaume&rft.aulast=Bigourdan&rft.btitle=Le+syst%C3%A8me+m%C3%A9trique+des+poids+et+mesures+%3B+son+%C3%A9tablissement+et+sa+propagation+graduelle%2C+avec+l%27histoire+des+op%C3%A9rations+qui+ont+servi+%C3%A0+d%C3%A9terminer+le+m%C3%A8tre+et+le+kilogramme&rft.date=1901&rft.genre=book&rft.place=Par%C3s&rft.pub=Gauthier-Villars&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Flesystmemtri00bigo&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></li> <li>Clarke, Alexander Ross; Helmert, Friedrich Robert (1911). "Earth, Figure of the". En <a href="/wiki/Hugh_Chisholm" title="Hugh Chisholm">Chisholm, Hugh</a> (ed.). <a href="/wiki/Encyclop%C3%A6dia_Britannica" title="Encyclopædia Britannica"><i>Encyclopædia Britannica</i></a>. 8 (11th ed.). <a href="/wiki/Cambridge_University_Press" title="Cambridge University Press">Cambridge University Press</a>. pp. 801–813.</li> <li>Taylor, B.N. e Thompson, A. (2008b). <a rel="nofollow" class="external text" href="http://physics.nist.gov/cuu/pdf/sp811.pdf"><i>Guide for the Use of the International System of Units</i></a> (Special Publication 811). Gaithersburg, MD: National Institute of Standards and Technology. Consultado o 23 de agosto d e2008.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Ligazóns_externas"><span id="Ligaz.C3.B3ns_externas"></span>Ligazóns externas</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Metro&veaction=edit&section=15" title="Editar a sección: «Ligazóns externas»" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Metro&action=edit&section=15" title="Editar o código fonte da sección: Ligazóns externas"><span>editar a fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20071208012621/http://unit-converter.org/en_length.html">Conversión do metro noutras unidades</a></li></ul> <div role="navigation" class="navbox" aria-labelledby="Unidades_de_lonxitude_do_Sistema_Internacional" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div class="plainlinks hlist navbar mini"><ul><li class="nv-ver"><a href="/wiki/Modelo:Navbox" title="Modelo:Navbox"><abbr title="Ver o modelo">v</abbr></a></li><li class="nv-conversa"><a href="/wiki/Conversa_modelo:Navbox" title="Conversa modelo:Navbox"><abbr title="Conversa do modelo">c</abbr></a></li><li class="nv-editar"><a class="external text" href="https://gl.wikipedia.org/w/index.php?title=Modelo:Navbox&action=edit"><abbr title="Editar o modelo">e</abbr></a></li></ul></div><div id="Unidades_de_lonxitude_do_Sistema_Internacional" style="font-size:114%;margin:0 4em">Unidades de <a href="/wiki/Lonxitude" title="Lonxitude">lonxitude</a> do <a href="/wiki/Sistema_Internacional" class="mw-redirect" title="Sistema Internacional">Sistema Internacional</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a href="/w/index.php?title=Yott%C3%A1metro&action=edit&redlink=1" class="new" title="Yottámetro (a páxina aínda non existe)">Yottámetro</a> (10<sup>24</sup> m)</li> <li><a href="/w/index.php?title=Zett%C3%A1metro&action=edit&redlink=1" class="new" title="Zettámetro (a páxina aínda non existe)">Zettámetro</a> (10<sup>21</sup> m )</li> <li><a href="/w/index.php?title=Ex%C3%A1metro&action=edit&redlink=1" class="new" title="Exámetro (a páxina aínda non existe)">Exámetro</a> (10<sup>18</sup> m)</li> <li><a href="/w/index.php?title=Pet%C3%A1metro&action=edit&redlink=1" class="new" title="Petámetro (a páxina aínda non existe)">Petámetro</a> (10<sup>15</sup> m)</li> <li><a href="/w/index.php?title=Ter%C3%A1metro&action=edit&redlink=1" class="new" title="Terámetro (a páxina aínda non existe)">Terámetro</a> (10<sup>12</sup> m)</li> <li><a href="/w/index.php?title=Xig%C3%A1metro&action=edit&redlink=1" class="new" title="Xigámetro (a páxina aínda non existe)">Xigámetro</a> (10<sup>9</sup> m)</li> <li><a href="/wiki/Meg%C3%A1metro" title="Megámetro">Megámetro</a> (10<sup>6</sup> m)</li> <li><a href="/wiki/Quil%C3%B3metro" title="Quilómetro">Quilómetro</a> (10<sup>3</sup> m)</li> <li><a href="/wiki/Hect%C3%B3metro" title="Hectómetro">Hectómetro</a> (10<sup>2</sup> m)</li> <li><a href="/w/index.php?title=Dec%C3%A1metro&action=edit&redlink=1" class="new" title="Decámetro (a páxina aínda non existe)">Decámetro</a> (10<sup>1</sup> m)</li> <li><a class="mw-selflink selflink">Metro</a> (10<sup>0</sup> m)</li> <li><a href="/wiki/Dec%C3%ADmetro" title="Decímetro">Decímetro</a> (10<sup>-1</sup> m)</li> <li><a href="/wiki/Cent%C3%ADmetro" title="Centímetro">Centímetro</a> (10<sup>-2</sup> m)</li> <li><a href="/wiki/Mil%C3%ADmetro" title="Milímetro">Milímetro</a> (10<sup>-3</sup> m)</li> <li><a href="/wiki/Micr%C3%B3metro" title="Micrómetro">Micrómetro</a> (10<sup>-6</sup> m)</li> <li><a href="/wiki/Nan%C3%B3metro" class="mw-redirect" title="Nanómetro">Nanómetro</a> (10<sup>-9</sup> m)</li> <li><a href="/wiki/%C3%81ngstrom" title="Ángstrom">Ángstrom</a> (10<sup>-10</sup> m)</li> <li><a href="/wiki/Pic%C3%B3metro" title="Picómetro">Picómetro</a> (10<sup>-12</sup> m)</li> <li><a href="/w/index.php?title=Femt%C3%B3metro&action=edit&redlink=1" class="new" title="Femtómetro (a páxina aínda non existe)">Femtómetro</a> (10<sup>-15</sup> m)</li> <li><a href="/w/index.php?title=Att%C3%B3metro&action=edit&redlink=1" class="new" title="Attómetro (a páxina aínda non existe)">Attómetro</a> (10<sup>-18</sup> m)</li> <li><a href="/w/index.php?title=Zept%C3%B3metro&action=edit&redlink=1" class="new" title="Zeptómetro (a páxina aínda non existe)">Zeptómetro</a> (10<sup>-21</sup> m)</li> <li><a href="/w/index.php?title=Yoct%C3%B3metro&action=edit&redlink=1" class="new" title="Yoctómetro (a páxina aínda non existe)">Yoctómetro</a> (10<sup>-24</sup> m)</li></ul> </div></td></tr></tbody></table></div> <div role="navigation" class="navbox" aria-labelledby="Control_de_autoridades" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th id="Control_de_autoridades" scope="row" class="navbox-group" style="width:1%;width: 12%; text-align:center;"><a href="/wiki/Axuda:Control_de_autoridades" title="Axuda:Control de autoridades">Control de autoridades</a></th><td class="navbox-list navbox-odd plainlinks" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><span style="white-space:nowrap;"><span typeof="mw:File"><a href="https://www.wikidata.org/wiki/Wikidata:Main_Page" title="Wikidata"><img alt="Wd" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/20px-Wikidata-logo.svg.png" decoding="async" width="20" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/30px-Wikidata-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span>: <span class="uid"><a href="https://www.wikidata.org/wiki/Q11573" class="extiw" title="wikidata:Q11573">Q11573</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Art_%26_Architecture_Thesaurus" title="Art & Architecture Thesaurus">AAT</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.getty.edu/vow/AATFullDisplay?find=&logic=AND&note=&subjectid=300379099">300379099</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Biblioteca_Nacional_Central_de_Florencia" title="Biblioteca Nacional Central de Florencia">BNCF</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://thes.bncf.firenze.sbn.it/termine.php?id=70987">70987</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Biblioteca_Nacional_de_Francia" title="Biblioteca Nacional de Francia">BNF</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb11967077c">11967077c</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Grande_Enciclopedia_Rusa" title="Grande Enciclopedia Rusa">BRE</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://old.bigenc.ru/text/2209201">2209201</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Encyclop%C3%A6dia_Britannica" title="Encyclopædia Britannica">EBID</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.britannica.com/science/metre-measurement">ID</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Gran_Enciclopedia_Aragonesa" title="Gran Enciclopedia Aragonesa">GEA</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="http://www.enciclopedia-aragonesa.com/voz.asp?voz_id=8773">8773</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://d-nb.info/gnd/4518579-7">4518579-7</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Library_of_Congress_Control_Number" title="Library of Congress Control Number">LCCN</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/sh85084371">sh85084371</a></span></span></span></li> <li><span style="white-space:nowrap;">MAG: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://web.archive.org/web/*/https://academic.microsoft.com/v2/detail/151011524">151011524</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Enciclopedia_Treccani" title="Enciclopedia Treccani">Treccani</a>: <span class="uid"><span class="plainlinks"><a rel="nofollow" class="external text" href="https://www.treccani.it/enciclopedia/metro">metro</a></span></span></span></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Traído desde «<a dir="ltr" href="https://gl.wikipedia.org/w/index.php?title=Metro&oldid=6785449">https://gl.wikipedia.org/w/index.php?title=Metro&oldid=6785449</a>»</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Especial:Categor%C3%ADas" title="Especial:Categorías">Categoría</a>: <ul><li><a href="/wiki/Categor%C3%ADa:Unidades_de_lonxitude" title="Categoría:Unidades de lonxitude">Unidades de lonxitude</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categorías agochadas: <ul><li><a href="/wiki/Categor%C3%ADa:P%C3%A1xinas_que_usan_a_extensi%C3%B3n_EasyTimeline" title="Categoría:Páxinas que usan a extensión EasyTimeline">Páxinas que usan a extensión EasyTimeline</a></li><li><a href="/wiki/Categor%C3%ADa:Wikipedia:P%C3%A1xinas_que_usan_ligaz%C3%B3ns_m%C3%A1xicas_ISBN" title="Categoría:Wikipedia:Páxinas que usan ligazóns máxicas ISBN">Wikipedia:Páxinas que usan ligazóns máxicas ISBN</a></li><li><a href="/wiki/Categor%C3%ADa:Artigos_que_toda_Wikipedia_deber%C3%ADa_ter_(m%C3%A1is_de_30_kB)" title="Categoría:Artigos que toda Wikipedia debería ter (máis de 30 kB)">Artigos que toda Wikipedia debería ter (máis de 30 kB)</a></li><li><a href="/wiki/Categor%C3%ADa:Artigos_que_toda_Wikipedia_deber%C3%ADa_ter_(Ciencia)" title="Categoría:Artigos que toda Wikipedia debería ter (Ciencia)">Artigos que toda Wikipedia debería ter (Ciencia)</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> A última edición desta páxina foi o 8 de xullo de 2024 ás 18:43.</li> <li id="footer-info-copyright">Todo o texto está dispoñible baixo a <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/">licenza Creative Commons recoñecemento compartir igual 4.0</a>; pódense aplicar termos adicionais. 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