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Dostupno na 131 jeziku" > <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-131" 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">131 jezik</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/Ligsnelheid" title="Ligsnelheid – afrikans" lang="af" hreflang="af" data-title="Ligsnelheid" data-language-autonym="Afrikaans" data-language-local-name="afrikans" 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/Lichtgeschwindigkeit" title="Lichtgeschwindigkeit – njemački (Švicarska)" lang="gsw" hreflang="gsw" data-title="Lichtgeschwindigkeit" data-language-autonym="Alemannisch" data-language-local-name="njemački (Švicarska)" 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%8B%A8%E1%89%A5%E1%88%AD%E1%88%83%E1%8A%95_%E1%8D%8D%E1%8C%A5%E1%8A%90%E1%89%B5" title="የብርሃን ፍጥነት – amharski" lang="am" hreflang="am" data-title="የብርሃን ፍጥነት" data-language-autonym="አማርኛ" data-language-local-name="amharski" 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/Velocidat_d%27a_luz" title="Velocidat d'a luz – aragonski" lang="an" hreflang="an" data-title="Velocidat d'a luz" data-language-autonym="Aragonés" data-language-local-name="aragonski" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B3%D8%B1%D8%B9%D8%A9_%D8%A7%D9%84%D8%B6%D9%88%D8%A1" title="سرعة الضوء – arapski" lang="ar" hreflang="ar" data-title="سرعة الضوء" data-language-autonym="العربية" data-language-local-name="arapski" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%B3%D8%B1%D8%B9%D8%A9_%D8%A7%D9%84%D9%86%D9%88%D8%B1" title="سرعة النور – Egyptian Arabic" lang="arz" hreflang="arz" data-title="سرعة النور" 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%AA%E0%A7%8B%E0%A6%B9%E0%A7%B0%E0%A7%B0_%E0%A6%AC%E0%A7%87%E0%A6%97" title="পোহৰৰ বেগ – asamski" lang="as" hreflang="as" data-title="পোহৰৰ বেগ" data-language-autonym="অসমীয়া" data-language-local-name="asamski" 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/Velocid%C3%A1_de_la_lluz" title="Velocidá de la lluz – asturijski" lang="ast" hreflang="ast" data-title="Velocidá de la lluz" data-language-autonym="Asturianu" data-language-local-name="asturijski" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/%C4%B0%C5%9F%C4%B1q_s%C3%BCr%C9%99ti" title="İşıq sürəti – azerbejdžanski" lang="az" hreflang="az" data-title="İşıq sürəti" data-language-autonym="Azərbaycanca" data-language-local-name="azerbejdžanski" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%AF%D2%A1%D1%82%D1%8B%D0%BB%D1%8B%D2%A1_%D1%82%D0%B8%D2%99%D0%BB%D0%B5%D0%B3%D0%B5" title="Яҡтылыҡ тиҙлеге – baškirski" lang="ba" hreflang="ba" data-title="Яҡтылыҡ тиҙлеге" data-language-autonym="Башҡортса" data-language-local-name="baškirski" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/%C5%A0v%C4%97isas_veikis" title="Švėisas veikis – Samogitian" lang="sgs" hreflang="sgs" data-title="Švėisas veikis" data-language-autonym="Žemaitėška" data-language-local-name="Samogitian" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Rikas_nin_liwanag" title="Rikas nin liwanag – Central Bikol" lang="bcl" hreflang="bcl" data-title="Rikas nin liwanag" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A1%D0%BA%D0%BE%D1%80%D0%B0%D1%81%D1%86%D1%8C_%D1%81%D0%B2%D1%8F%D1%82%D0%BB%D0%B0" title="Скорасць святла – bjeloruski" lang="be" hreflang="be" data-title="Скорасць святла" data-language-autonym="Беларуская" data-language-local-name="bjeloruski" 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%A5%D1%83%D1%82%D0%BA%D0%B0%D1%81%D1%8C%D1%86%D1%8C_%D1%81%D1%8C%D0%B2%D1%8F%D1%82%D0%BB%D0%B0" title="Хуткасьць сьвятла – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Хуткасьць сьвятла" 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%A1%D0%BA%D0%BE%D1%80%D0%BE%D1%81%D1%82_%D0%BD%D0%B0_%D1%81%D0%B2%D0%B5%D1%82%D0%BB%D0%B8%D0%BD%D0%B0%D1%82%D0%B0" title="Скорост на светлината – bugarski" lang="bg" hreflang="bg" data-title="Скорост на светлината" data-language-autonym="Български" data-language-local-name="bugarski" 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%85%E0%A4%81%E0%A4%9C%E0%A5%8B%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%BE_%E0%A4%95%E0%A5%87_%E0%A4%97%E0%A4%A4%E0%A4%BF%E0%A4%B5%E0%A5%87%E0%A4%97" title="अँजोरिया के गतिवेग – Bhojpuri" lang="bh" hreflang="bh" data-title="अँजोरिया के गतिवेग" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%B2%E0%A7%8B%E0%A6%B0_%E0%A6%A6%E0%A7%8D%E0%A6%B0%E0%A7%81%E0%A6%A4%E0%A6%BF" title="আলোর দ্রুতি – bengalski" lang="bn" hreflang="bn" data-title="আলোর দ্রুতি" data-language-autonym="বাংলা" data-language-local-name="bengalski" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Tizh_ar_goulo%C3%B9" title="Tizh ar gouloù – bretonski" lang="br" hreflang="br" data-title="Tizh ar gouloù" data-language-autonym="Brezhoneg" data-language-local-name="bretonski" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%93%D1%8D%D1%80%D1%8D%D0%BB%D1%8D%D0%B9_%D1%85%D1%83%D1%80%D0%B4%D0%B0%D0%BD" title="Гэрэлэй хурдан – Russia Buriat" lang="bxr" hreflang="bxr" data-title="Гэрэлэй хурдан" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target"><span>Буряад</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Velocitat_de_la_llum" title="Velocitat de la llum – katalonski" lang="ca" hreflang="ca" data-title="Velocitat de la llum" data-language-autonym="Català" data-language-local-name="katalonski" 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/Gu%C5%8Fng-s%C3%B3k" title="Guŏng-sók – Mindong" lang="cdo" hreflang="cdo" data-title="Guŏng-sók" 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-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%AE%DB%8E%D8%B1%D8%A7%DB%8C%DB%8C%DB%8C_%DA%95%D9%88%D9%88%D9%86%D8%A7%DA%A9%DB%8C" title="خێراییی ڕووناکی – centralnokurdski" lang="ckb" hreflang="ckb" data-title="خێراییی ڕووناکی" data-language-autonym="کوردی" data-language-local-name="centralnokurdski" 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/Rychlost_sv%C4%9Btla" title="Rychlost světla – češki" lang="cs" hreflang="cs" data-title="Rychlost světla" data-language-autonym="Čeština" data-language-local-name="češki" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%C3%87%D1%83%D1%82%C4%83_%D1%85%C4%83%D0%B2%C4%83%D1%80%D1%82%D0%BB%C4%83%D1%85%C4%95" title="Çутă хăвăртлăхĕ – čuvaški" lang="cv" hreflang="cv" data-title="Çутă хăвăртлăхĕ" data-language-autonym="Чӑвашла" data-language-local-name="čuvaški" 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/Cyflymder_golau" title="Cyflymder golau – velški" lang="cy" hreflang="cy" data-title="Cyflymder golau" data-language-autonym="Cymraeg" data-language-local-name="velški" 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/Lysets_hastighed" title="Lysets hastighed – danski" lang="da" hreflang="da" data-title="Lysets hastighed" data-language-autonym="Dansk" data-language-local-name="danski" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de badge-Q17437796 badge-featuredarticle mw-list-item" title="istaknuti članak"><a href="https://de.wikipedia.org/wiki/Lichtgeschwindigkeit" title="Lichtgeschwindigkeit – njemački" lang="de" hreflang="de" data-title="Lichtgeschwindigkeit" data-language-autonym="Deutsch" data-language-local-name="njemački" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A4%CE%B1%CF%87%CF%8D%CF%84%CE%B7%CF%84%CE%B1_%CF%84%CE%BF%CF%85_%CF%86%CF%89%CF%84%CF%8C%CF%82" title="Ταχύτητα του φωτός – grčki" lang="el" hreflang="el" data-title="Ταχύτητα του φωτός" data-language-autonym="Ελληνικά" data-language-local-name="grčki" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en badge-Q17437796 badge-featuredarticle mw-list-item" title="istaknuti članak"><a href="https://en.wikipedia.org/wiki/Speed_of_light" title="Speed of light – engleski" lang="en" hreflang="en" data-title="Speed of light" data-language-autonym="English" data-language-local-name="engleski" 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/Lumrapido" title="Lumrapido – esperanto" lang="eo" hreflang="eo" data-title="Lumrapido" 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/Velocidad_de_la_luz" title="Velocidad de la luz – španski" lang="es" hreflang="es" data-title="Velocidad de la luz" data-language-autonym="Español" data-language-local-name="španski" 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/Valguse_kiirus" title="Valguse kiirus – estonski" lang="et" hreflang="et" data-title="Valguse kiirus" data-language-autonym="Eesti" data-language-local-name="estonski" 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/Argiaren_abiadura" title="Argiaren abiadura – baskijski" lang="eu" hreflang="eu" data-title="Argiaren abiadura" data-language-autonym="Euskara" data-language-local-name="baskijski" 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/Veloci%C3%A1_de_la_lus" title="Velociá de la lus – Extremaduran" lang="ext" hreflang="ext" data-title="Velociá de la lus" 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/%D8%B3%D8%B1%D8%B9%D8%AA_%D9%86%D9%88%D8%B1" title="سرعت نور – perzijski" lang="fa" hreflang="fa" data-title="سرعت نور" data-language-autonym="فارسی" data-language-local-name="perzijski" 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/Valonnopeus" title="Valonnopeus – finski" lang="fi" hreflang="fi" data-title="Valonnopeus" data-language-autonym="Suomi" data-language-local-name="finski" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fj mw-list-item"><a href="https://fj.wikipedia.org/wiki/Totolo_ni_rarama" title="Totolo ni rarama – fidžijski" lang="fj" hreflang="fj" data-title="Totolo ni rarama" data-language-autonym="Na Vosa Vakaviti" data-language-local-name="fidžijski" class="interlanguage-link-target"><span>Na Vosa Vakaviti</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Vitesse_de_la_lumi%C3%A8re" title="Vitesse de la lumière – francuski" lang="fr" hreflang="fr" data-title="Vitesse de la lumière" data-language-autonym="Français" data-language-local-name="francuski" 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/Faard_faan%27t_laacht" title="Faard faan't laacht – sjeverni frizijski" lang="frr" hreflang="frr" data-title="Faard faan't laacht" data-language-autonym="Nordfriisk" data-language-local-name="sjeverni frizijski" 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/Velocit%C3%A2t_de_l%C3%BBs" title="Velocitât de lûs – friulijski" lang="fur" hreflang="fur" data-title="Velocitât de lûs" data-language-autonym="Furlan" data-language-local-name="friulijski" 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/Ljochtfaasje" title="Ljochtfaasje – zapadni frizijski" lang="fy" hreflang="fy" data-title="Ljochtfaasje" data-language-autonym="Frysk" data-language-local-name="zapadni frizijski" 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/Luas_an_tsolais" title="Luas an tsolais – irski" lang="ga" hreflang="ga" data-title="Luas an tsolais" data-language-autonym="Gaeilge" data-language-local-name="irski" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gcr mw-list-item"><a href="https://gcr.wikipedia.org/wiki/Vit%C3%A8s_di_limy%C3%A8" title="Vitès di limyè – Guianan Creole" lang="gcr" hreflang="gcr" data-title="Vitès di limyè" data-language-autonym="Kriyòl gwiyannen" data-language-local-name="Guianan Creole" class="interlanguage-link-target"><span>Kriyòl gwiyannen</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Velocidade_da_luz" title="Velocidade da luz – galicijski" lang="gl" hreflang="gl" data-title="Velocidade da luz" data-language-autonym="Galego" data-language-local-name="galicijski" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wikipedia.org/wiki/Tesape_pya%27ekue" title="Tesape pya'ekue – gvarani" lang="gn" hreflang="gn" data-title="Tesape pya'ekue" data-language-autonym="Avañe'ẽ" data-language-local-name="gvarani" 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%AA%E0%AB%8D%E0%AA%B0%E0%AA%95%E0%AA%BE%E0%AA%B6%E0%AA%A8%E0%AB%8B_%E0%AA%B5%E0%AB%87%E0%AA%97" title="પ્રકાશનો વેગ – gudžarati" lang="gu" hreflang="gu" data-title="પ્રકાશનો વેગ" data-language-autonym="ગુજરાતી" data-language-local-name="gudžarati" class="interlanguage-link-target"><span>ગુજરાતી</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%94%D7%99%D7%A8%D7%95%D7%AA_%D7%94%D7%90%D7%95%D7%A8" title="מהירות האור – hebrejski" lang="he" hreflang="he" data-title="מהירות האור" data-language-autonym="עברית" data-language-local-name="hebrejski" 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%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6_%E0%A4%95%E0%A4%BE_%E0%A4%B5%E0%A5%87%E0%A4%97" title="प्रकाश का वेग – hindi" lang="hi" hreflang="hi" data-title="प्रकाश का वेग" 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/Parkaas_ke_raftaar" title="Parkaas ke raftaar – Fiji Hindi" lang="hif" hreflang="hif" data-title="Parkaas ke raftaar" 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/Brzina_svjetlosti" title="Brzina svjetlosti – hrvatski" lang="hr" hreflang="hr" data-title="Brzina svjetlosti" data-language-autonym="Hrvatski" data-language-local-name="hrvatski" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Vit%C3%A8s_limy%C3%A8" title="Vitès limyè – haićanski kreolski" lang="ht" hreflang="ht" data-title="Vitès limyè" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haićanski kreolski" 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/F%C3%A9nysebess%C3%A9g" title="Fénysebesség – mađarski" lang="hu" hreflang="hu" data-title="Fénysebesség" data-language-autonym="Magyar" data-language-local-name="mađarski" 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/%D4%BC%D5%B8%D6%82%D5%B5%D5%BD%D5%AB_%D5%A1%D6%80%D5%A1%D5%A3%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Լույսի արագություն – armenski" lang="hy" hreflang="hy" data-title="Լույսի արագություն" data-language-autonym="Հայերեն" data-language-local-name="armenski" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Velocitate_de_lumine" title="Velocitate de lumine – interlingva" lang="ia" hreflang="ia" data-title="Velocitate de lumine" data-language-autonym="Interlingua" data-language-local-name="interlingva" 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/Laju_cahaya" title="Laju cahaya – indonezijski" lang="id" hreflang="id" data-title="Laju cahaya" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonezijski" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Lj%C3%B3shra%C3%B0i" title="Ljóshraði – islandski" lang="is" hreflang="is" data-title="Ljóshraði" data-language-autonym="Íslenska" data-language-local-name="islandski" 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/Velocit%C3%A0_della_luce" title="Velocità della luce – italijanski" lang="it" hreflang="it" data-title="Velocità della luce" data-language-autonym="Italiano" data-language-local-name="italijanski" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%85%89%E9%80%9F" title="光速 – japanski" lang="ja" hreflang="ja" data-title="光速" data-language-autonym="日本語" data-language-local-name="japanski" 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/Spiid_a_lait" title="Spiid a lait – Jamaican Creole English" lang="jam" hreflang="jam" data-title="Spiid a lait" 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/nilsutra_lo_gusni" title="nilsutra lo gusni – lojban" lang="jbo" hreflang="jbo" data-title="nilsutra lo gusni" 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-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A1%E1%83%98%E1%83%9C%E1%83%90%E1%83%97%E1%83%9A%E1%83%98%E1%83%A1_%E1%83%A1%E1%83%98%E1%83%A9%E1%83%A5%E1%83%90%E1%83%A0%E1%83%94" title="სინათლის სიჩქარე – gruzijski" lang="ka" hreflang="ka" data-title="სინათლის სიჩქარე" data-language-autonym="ქართული" data-language-local-name="gruzijski" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kcg mw-list-item"><a href="https://kcg.wikipedia.org/wiki/Cung_sai" title="Cung sai – tjap" lang="kcg" hreflang="kcg" data-title="Cung sai" data-language-autonym="Tyap" data-language-local-name="tjap" class="interlanguage-link-target"><span>Tyap</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%96%D0%B0%D1%80%D1%8B%D2%9B_%D0%B6%D1%8B%D0%BB%D0%B4%D0%B0%D0%BC%D0%B4%D1%8B%D2%93%D1%8B" title="Жарық жылдамдығы – kazaški" lang="kk" hreflang="kk" data-title="Жарық жылдамдығы" data-language-autonym="Қазақша" data-language-local-name="kazaški" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-km mw-list-item"><a href="https://km.wikipedia.org/wiki/%E1%9E%9B%E1%9F%92%E1%9E%94%E1%9E%BF%E1%9E%93%E1%9E%96%E1%9E%93%E1%9F%92%E1%9E%9B%E1%9E%BA" title="ល្បឿនពន្លឺ – kmerski" lang="km" hreflang="km" data-title="ល្បឿនពន្លឺ" data-language-autonym="ភាសាខ្មែរ" data-language-local-name="kmerski" class="interlanguage-link-target"><span>ភាសាខ្មែរ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B9%9B%EC%9D%98_%EC%86%8D%EB%A0%A5" title="빛의 속력 – korejski" lang="ko" hreflang="ko" data-title="빛의 속력" data-language-autonym="한국어" data-language-local-name="korejski" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Tooth_golow" title="Tooth golow – kornski" lang="kw" hreflang="kw" data-title="Tooth golow" data-language-autonym="Kernowek" data-language-local-name="kornski" 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%96%D0%B0%D1%80%D1%8B%D0%BA_%D1%8B%D0%BB%D0%B4%D0%B0%D0%BC%D0%B4%D1%8B%D0%B3%D1%8B" title="Жарык ылдамдыгы – kirgiški" lang="ky" hreflang="ky" data-title="Жарык ылдамдыгы" data-language-autonym="Кыргызча" data-language-local-name="kirgiški" 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/Celeritas_lucis" title="Celeritas lucis – latinski" lang="la" hreflang="la" data-title="Celeritas lucis" data-language-autonym="Latina" data-language-local-name="latinski" 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/Liichtvitess" title="Liichtvitess – luksemburški" lang="lb" hreflang="lb" data-title="Liichtvitess" data-language-autonym="Lëtzebuergesch" data-language-local-name="luksemburški" 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%AD%D0%BA%D1%83%D1%8C%D0%BD%D0%B8%D0%BD_%D0%B7%D0%B0%D1%80%D0%B1%D0%B2%D0%B0%D0%BB" title="Экуьнин зарбвал – lezgijski" lang="lez" hreflang="lez" data-title="Экуьнин зарбвал" data-language-autonym="Лезги" data-language-local-name="lezgijski" class="interlanguage-link-target"><span>Лезги</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Rapidia_de_lus" title="Rapidia de lus – Lingua Franca Nova" lang="lfn" hreflang="lfn" data-title="Rapidia de lus" data-language-autonym="Lingua Franca Nova" data-language-local-name="Lingua Franca Nova" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Velocit%C3%A0_de_la_lus" title="Velocità de la lus – lombardski" lang="lmo" hreflang="lmo" data-title="Velocità de la lus" data-language-autonym="Lombard" data-language-local-name="lombardski" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/%C5%A0viesos_greitis" title="Šviesos greitis – litvanski" lang="lt" hreflang="lt" data-title="Šviesos greitis" data-language-autonym="Lietuvių" data-language-local-name="litvanski" 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/Gaismas_%C4%81trums" title="Gaismas ātrums – latvijski" lang="lv" hreflang="lv" data-title="Gaismas ātrums" data-language-autonym="Latviešu" data-language-local-name="latvijski" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-min mw-list-item"><a href="https://min.wikipedia.org/wiki/Laju_cahayo" title="Laju cahayo – minangkabau" lang="min" hreflang="min" data-title="Laju cahayo" data-language-autonym="Minangkabau" data-language-local-name="minangkabau" class="interlanguage-link-target"><span>Minangkabau</span></a></li><li class="interlanguage-link interwiki-mk badge-Q17437798 badge-goodarticle mw-list-item" title="dobar članak"><a href="https://mk.wikipedia.org/wiki/%D0%91%D1%80%D0%B7%D0%B8%D0%BD%D0%B0_%D0%BD%D0%B0_%D1%81%D0%B2%D0%B5%D1%82%D0%BB%D0%B8%D0%BD%D0%B0%D1%82%D0%B0" title="Брзина на светлината – makedonski" lang="mk" hreflang="mk" data-title="Брзина на светлината" data-language-autonym="Македонски" data-language-local-name="makedonski" 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%AA%E0%B5%8D%E0%B4%B0%E0%B4%95%E0%B4%BE%E0%B4%B6%E0%B4%B5%E0%B5%87%E0%B4%97%E0%B4%82" title="പ്രകാശവേഗം – malajalam" lang="ml" hreflang="ml" data-title="പ്രകാശവേഗം" data-language-autonym="മലയാളം" data-language-local-name="malajalam" 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%93%D1%8D%D1%80%D0%BB%D0%B8%D0%B9%D0%BD_%D1%85%D1%83%D1%80%D0%B4" title="Гэрлийн хурд – mongolski" lang="mn" hreflang="mn" data-title="Гэрлийн хурд" data-language-autonym="Монгол" data-language-local-name="mongolski" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B6%E0%A4%BE%E0%A4%9A%E0%A4%BE_%E0%A4%B5%E0%A5%87%E0%A4%97" title="प्रकाशाचा वेग – marati" lang="mr" hreflang="mr" data-title="प्रकाशाचा वेग" data-language-autonym="मराठी" data-language-local-name="marati" 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/Kelajuan_cahaya" title="Kelajuan cahaya – malajski" lang="ms" hreflang="ms" data-title="Kelajuan cahaya" data-language-autonym="Bahasa Melayu" data-language-local-name="malajski" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%A1%E1%80%9C%E1%80%84%E1%80%BA%E1%80%B8%E1%80%A1%E1%80%9C%E1%80%BB%E1%80%84%E1%80%BA" title="အလင်းအလျင် – burmanski" lang="my" hreflang="my" data-title="အလင်းအလျင်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burmanski" 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/Lichtsnellheid" title="Lichtsnellheid – donjonjemački" lang="nds" hreflang="nds" data-title="Lichtsnellheid" data-language-autonym="Plattdüütsch" data-language-local-name="donjonjemački" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Lichtsnelheid" title="Lichtsnelheid – nizozemski" lang="nl" hreflang="nl" data-title="Lichtsnelheid" data-language-autonym="Nederlands" data-language-local-name="nizozemski" 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/Ljosfarten" title="Ljosfarten – norveški (Nynorsk)" lang="nn" hreflang="nn" data-title="Ljosfarten" data-language-autonym="Norsk nynorsk" data-language-local-name="norveški (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/Lysets_hastighet" title="Lysets hastighet – norveški (Bokmal)" lang="nb" hreflang="nb" data-title="Lysets hastighet" data-language-autonym="Norsk bokmål" data-language-local-name="norveški (Bokmal)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Velocitat_de_la_lutz" title="Velocitat de la lutz – oksitanski" lang="oc" hreflang="oc" data-title="Velocitat de la lutz" data-language-autonym="Occitan" data-language-local-name="oksitanski" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Saffisa_ifaa" title="Saffisa ifaa – oromo" lang="om" hreflang="om" data-title="Saffisa ifaa" data-language-autonym="Oromoo" data-language-local-name="oromo" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B0%E0%A9%8C%E0%A8%B8%E0%A8%BC%E0%A8%A8%E0%A9%80_%E0%A8%A6%E0%A9%80_%E0%A8%97%E0%A8%A4%E0%A9%80" title="ਰੌਸ਼ਨੀ ਦੀ ਗਤੀ – pandžapski" lang="pa" hreflang="pa" data-title="ਰੌਸ਼ਨੀ ਦੀ ਗਤੀ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="pandžapski" 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/Pr%C4%99dko%C5%9B%C4%87_%C5%9Bwiat%C5%82a" title="Prędkość światła – poljski" lang="pl" hreflang="pl" data-title="Prędkość światła" data-language-autonym="Polski" data-language-local-name="poljski" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%B1%D9%88%D8%B4%D9%86%DB%8C_%D8%AF%DB%8C_%D8%B1%D9%81%D8%AA%D8%A7%D8%B1" title="روشنی دی رفتار – Western Punjabi" lang="pnb" hreflang="pnb" data-title="روشنی دی رفتار" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%AF_%D9%84%D9%85%D8%B1_%D8%B3%D8%B1%D8%B9%D8%AA" title="د لمر سرعت – paštu" lang="ps" hreflang="ps" data-title="د لمر سرعت" data-language-autonym="پښتو" data-language-local-name="paštu" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Velocidade_da_luz" title="Velocidade da luz – portugalski" lang="pt" hreflang="pt" data-title="Velocidade da luz" data-language-autonym="Português" data-language-local-name="portugalski" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Viteza_luminii" title="Viteza luminii – rumunski" lang="ro" hreflang="ro" data-title="Viteza luminii" data-language-autonym="Română" data-language-local-name="rumunski" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A1%D0%BA%D0%BE%D1%80%D0%BE%D1%81%D1%82%D1%8C_%D1%81%D0%B2%D0%B5%D1%82%D0%B0" title="Скорость света – ruski" lang="ru" hreflang="ru" data-title="Скорость света" data-language-autonym="Русский" data-language-local-name="ruski" 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%A8%D0%B2%D1%8B%D0%B4%D0%BA%D0%BE%D1%81%D1%82%D1%8C_%D1%81%D0%B2%D1%96%D1%82%D0%BB%D0%B0" title="Швыдкость світла – Rusyn" lang="rue" hreflang="rue" data-title="Швыдкость світла" data-language-autonym="Русиньскый" data-language-local-name="Rusyn" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Vilucitati_d%C3%A2_luci" title="Vilucitati dâ luci – sicilijanski" lang="scn" hreflang="scn" data-title="Vilucitati dâ luci" data-language-autonym="Sicilianu" data-language-local-name="sicilijanski" 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/Speed_o_licht" title="Speed o licht – škotski" lang="sco" hreflang="sco" data-title="Speed o licht" data-language-autonym="Scots" data-language-local-name="škotski" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Brzina_svjetlosti" title="Brzina svjetlosti – srpskohrvatski" lang="sh" hreflang="sh" data-title="Brzina svjetlosti" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="srpskohrvatski" 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%86%E0%B6%BD%E0%B7%9D%E0%B6%9A%E0%B6%BA%E0%B7%9A_%E0%B7%80%E0%B7%9A%E0%B6%9C%E0%B6%BA" title="ආලෝකයේ වේගය – sinhaleški" lang="si" hreflang="si" data-title="ආලෝකයේ වේගය" data-language-autonym="සිංහල" data-language-local-name="sinhaleški" 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/Speed_of_light" title="Speed of light – Simple English" lang="en-simple" hreflang="en-simple" data-title="Speed of light" 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 badge-Q17437796 badge-featuredarticle mw-list-item" title="istaknuti članak"><a href="https://sk.wikipedia.org/wiki/R%C3%BDchlos%C5%A5_svetla_vo_v%C3%A1kuu" title="Rýchlosť svetla vo vákuu – slovački" lang="sk" hreflang="sk" data-title="Rýchlosť svetla vo vákuu" data-language-autonym="Slovenčina" data-language-local-name="slovački" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Hitrost_svetlobe" title="Hitrost svetlobe – slovenski" lang="sl" hreflang="sl" data-title="Hitrost svetlobe" data-language-autonym="Slovenščina" data-language-local-name="slovenski" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-smn mw-list-item"><a href="https://smn.wikipedia.org/wiki/%C4%8Cuov%C3%A2li%C3%A4htu" title="Čuovâliähtu – inari sami" lang="smn" hreflang="smn" data-title="Čuovâliähtu" data-language-autonym="Anarâškielâ" data-language-local-name="inari sami" class="interlanguage-link-target"><span>Anarâškielâ</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Xawaaraha_Ileyska" title="Xawaaraha Ileyska – somalski" lang="so" hreflang="so" data-title="Xawaaraha Ileyska" data-language-autonym="Soomaaliga" data-language-local-name="somalski" 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/Shpejt%C3%ABsia_e_drit%C3%ABs" title="Shpejtësia e dritës – albanski" lang="sq" hreflang="sq" data-title="Shpejtësia e dritës" data-language-autonym="Shqip" data-language-local-name="albanski" 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%91%D1%80%D0%B7%D0%B8%D0%BD%D0%B0_%D1%81%D0%B2%D0%B5%D1%82%D0%BB%D0%BE%D1%81%D1%82%D0%B8" title="Брзина светлости – srpski" lang="sr" hreflang="sr" data-title="Брзина светлости" data-language-autonym="Српски / srpski" data-language-local-name="srpski" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-stq mw-list-item"><a href="https://stq.wikipedia.org/wiki/Luchtgauegaid" title="Luchtgauegaid – Saterland Frisian" lang="stq" hreflang="stq" data-title="Luchtgauegaid" data-language-autonym="Seeltersk" data-language-local-name="Saterland Frisian" class="interlanguage-link-target"><span>Seeltersk</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Laju_cahaya" title="Laju cahaya – sundanski" lang="su" hreflang="su" data-title="Laju cahaya" data-language-autonym="Sunda" data-language-local-name="sundanski" 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/Ljusets_hastighet" title="Ljusets hastighet – švedski" lang="sv" hreflang="sv" data-title="Ljusets hastighet" data-language-autonym="Svenska" data-language-local-name="švedski" 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/Kasi_ya_nuru" title="Kasi ya nuru – svahili" lang="sw" hreflang="sw" data-title="Kasi ya nuru" data-language-autonym="Kiswahili" data-language-local-name="svahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%92%E0%AE%B3%E0%AE%BF%E0%AE%AF%E0%AE%BF%E0%AE%A9%E0%AF%8D_%E0%AE%B5%E0%AF%87%E0%AE%95%E0%AE%AE%E0%AF%8D" title="ஒளியின் வேகம் – tamilski" lang="ta" hreflang="ta" data-title="ஒளியின் வேகம்" data-language-autonym="தமிழ்" data-language-local-name="tamilski" 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%95%E0%B0%BE%E0%B0%82%E0%B0%A4%E0%B0%BF_%E0%B0%B5%E0%B1%87%E0%B0%97%E0%B0%82" title="కాంతి వేగం – telugu" lang="te" hreflang="te" data-title="కాంతి వేగం" 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%A1%D1%83%D1%80%D1%8A%D0%B0%D1%82%D0%B8_%D1%80%D3%AF%D1%88%D0%BD%D0%BE%D3%A3" title="Суръати рӯшноӣ – tadžički" lang="tg" hreflang="tg" data-title="Суръати рӯшноӣ" data-language-autonym="Тоҷикӣ" data-language-local-name="tadžički" 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%B8%AD%E0%B8%B1%E0%B8%95%E0%B8%A3%E0%B8%B2%E0%B9%80%E0%B8%A3%E0%B9%87%E0%B8%A7%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B9%81%E0%B8%AA%E0%B8%87" title="อัตราเร็วของแสง – tajlandski" lang="th" hreflang="th" data-title="อัตราเร็วของแสง" data-language-autonym="ไทย" data-language-local-name="tajlandski" 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/Bilis_ng_liwanag" title="Bilis ng liwanag – tagalog" lang="tl" hreflang="tl" data-title="Bilis ng liwanag" data-language-autonym="Tagalog" data-language-local-name="tagalog" 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/I%C5%9F%C4%B1k_h%C4%B1z%C4%B1" title="Işık hızı – turski" lang="tr" hreflang="tr" data-title="Işık hızı" data-language-autonym="Türkçe" data-language-local-name="turski" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%AF%D0%BA%D1%82%D1%8B%D0%BB%D1%8B%D0%BA_%D1%82%D0%B8%D0%B7%D0%BB%D0%B5%D0%B3%D0%B5" title="Яктылык тизлеге – tatarski" lang="tt" hreflang="tt" data-title="Яктылык тизлеге" data-language-autonym="Татарча / tatarça" data-language-local-name="tatarski" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-udm mw-list-item"><a href="https://udm.wikipedia.org/wiki/%D0%AE%D0%B3%D1%8B%D1%82%D0%BB%D1%8D%D0%BD_%D3%9D%D0%BE%D0%B3%D0%BB%D1%8B%D0%BA%D0%B5%D0%B7" title="Югытлэн ӝоглыкез – udmurt" lang="udm" hreflang="udm" data-title="Югытлэн ӝоглыкез" data-language-autonym="Удмурт" data-language-local-name="udmurt" class="interlanguage-link-target"><span>Удмурт</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A8%D0%B2%D0%B8%D0%B4%D0%BA%D1%96%D1%81%D1%82%D1%8C_%D1%81%D0%B2%D1%96%D1%82%D0%BB%D0%B0" title="Швидкість світла – ukrajinski" lang="uk" hreflang="uk" data-title="Швидкість світла" data-language-autonym="Українська" data-language-local-name="ukrajinski" 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/%D8%B1%D9%88%D8%B4%D9%86%DB%8C_%DA%A9%DB%8C_%D8%B1%D9%81%D8%AA%D8%A7%D8%B1" title="روشنی کی رفتار – urdu" lang="ur" hreflang="ur" data-title="روشنی کی رفتار" data-language-autonym="اردو" data-language-local-name="urdu" 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/Yorug%CA%BBlik_tezligi" title="Yorugʻlik tezligi – uzbečki" lang="uz" hreflang="uz" data-title="Yorugʻlik tezligi" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbečki" 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/Ve%C5%82osit%C3%A0_de_%C5%82a_%C5%82uze" title="Vełosità de ła łuze – venecijanski" lang="vec" hreflang="vec" data-title="Vełosità de ła łuze" data-language-autonym="Vèneto" data-language-local-name="venecijanski" 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/Vauktusen_piguz" title="Vauktusen piguz – Veps" lang="vep" hreflang="vep" data-title="Vauktusen piguz" 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 badge-Q17437796 badge-featuredarticle mw-list-item" title="istaknuti članak"><a href="https://vi.wikipedia.org/wiki/T%E1%BB%91c_%C4%91%E1%BB%99_%C3%A1nh_s%C3%A1ng" title="Tốc độ ánh sáng – vijetnamski" lang="vi" hreflang="vi" data-title="Tốc độ ánh sáng" data-language-autonym="Tiếng Việt" data-language-local-name="vijetnamski" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Kalaksi_han_lamrag" title="Kalaksi han lamrag – varej" lang="war" hreflang="war" data-title="Kalaksi han lamrag" data-language-autonym="Winaray" data-language-local-name="varej" 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/%E5%85%89%E9%80%9F" title="光速 – Wu kineski" lang="wuu" hreflang="wuu" data-title="光速" data-language-autonym="吴语" data-language-local-name="Wu kineski" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%92%D7%99%D7%9A_%D7%A4%D7%95%D7%9F_%D7%9C%D7%99%D7%9B%D7%98" title="גיך פון ליכט – jidiš" lang="yi" hreflang="yi" data-title="גיך פון ליכט" data-language-autonym="ייִדיש" data-language-local-name="jidiš" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%85%89%E9%80%9F" title="光速 – kineski" lang="zh" hreflang="zh" data-title="光速" data-language-autonym="中文" data-language-local-name="kineski" 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%89%E9%80%9F" title="光速 – Literary Chinese" lang="lzh" hreflang="lzh" data-title="光速" 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/Kng-sok" title="Kng-sok – Minnan" lang="nan" hreflang="nan" data-title="Kng-sok" 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/%E5%85%89%E9%80%9F" title="光速 – kantonski" lang="yue" hreflang="yue" data-title="光速" data-language-autonym="粵語" data-language-local-name="kantonski" 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/Q2111#sitelinks-wikipedia" title="Uredi međujezičke linkove" class="wbc-editpage">Uredi veze</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> 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cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Alati</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Alati</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">premjesti na bočnu traku</button> <button class="vector-pinnable-header-toggle-button 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class="mw-list-item"><a href="/wiki/Posebno:Posebne_stranice" title="Spisak svih posebnih stranica [q]" accesskey="q"><span>Posebne stranice</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Brzina_svjetlosti&oldid=3629604" title="Trajni link ove verzije stranice"><span>Trajni link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Brzina_svjetlosti&action=info" title="Više informacija o ovoj stranici"><span>Informacije o stranici</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Posebno:Citiraj&page=Brzina_svjetlosti&id=3629604&wpFormIdentifier=titleform" title="Informacije kako citirati ovu stranicu"><span>Citiraj ovu stranicu</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Posebno:Skra%C4%87iva%C4%8D_adresa&url=https%3A%2F%2Fbs.wikipedia.org%2Fwiki%2FBrzina_svjetlosti"><span>Skraćeni link</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Posebno:QrCode&url=https%3A%2F%2Fbs.wikipedia.org%2Fwiki%2FBrzina_svjetlosti"><span>Preuzmi QR kod</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"> Štampanje / izvoz </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=Posebno:Kolekcija&bookcmd=book_creator&referer=Brzina+svjetlosti"><span>Napravi knjigu</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Posebno:DownloadAsPdf&page=Brzina_svjetlosti&action=show-download-screen"><span>Preuzmi kao PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Brzina_svjetlosti&printable=yes" title="Verzija ove stranice za štampanje [p]" accesskey="p"><span>Za štampanje</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"> Na drugim projektima </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:Speed_of_light" 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/Q2111" title="Link na povezane podatke spremišnih stavki [g]" accesskey="g"><span>Stavka na Wikipodacima</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="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Izgled"> <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">Izgled</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">premjesti na bočnu traku</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">sakrij</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> <div id="siteSub" class="noprint">S Wikipedije, slobodne enciklopedije</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="bs" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r3627399">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:#f9f9f9;display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><div class="side-box metadata side-box-right"><style data-mw-deduplicate="TemplateStyles:r3486241">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span typeof="mw:File"><a href="/wiki/Datoteka:Q_space.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Q_space.svg/30px-Q_space.svg.png" decoding="async" width="30" height="27" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Q_space.svg/45px-Q_space.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Q_space.svg/60px-Q_space.svg.png 2x" data-file-width="820" data-file-height="740" /></a></span></div> <div class="side-box-text plainlist"><b><a href="/wiki/Portal:Astronomija" title="Portal:Astronomija">Astronomija portal</a></b><br />Odjeljak posvećen <b><a href="/wiki/Astronomija" title="Astronomija">astronomiji</a> </b></div></div> </div> <p><b>Brzina svjetlosti</b> u <a href="/wiki/Vakuum" title="Vakuum">vakuumu</a> iznosi 3*10<sup>8</sup> m/s, tačnije 299.792.458 <a href="/wiki/M/s" class="mw-redirect" title="M/s">metara u sekundi</a>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Prema <a href="/wiki/Posebna_teorija_relativnosti" title="Posebna teorija relativnosti">specijalnoj teoriji relativnosti</a>, <i><span class="texhtml mvar" style="font-style:italic;">c</span></i> je gornja granica za brzinu kojom konvencionalna <a href="/wiki/Materija" title="Materija">materija</a> ili <a href="/wiki/Energija" title="Energija">energija</a> (a time i bilo koji <a href="/wiki/Signal" title="Signal">signal</a> koji nosi <a href="/wiki/Informacija" title="Informacija">informaciju</a> ) može putovati kroz <a href="/wiki/Prostor" title="Prostor">svemir</a>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Earth_and_Moon_speed_of_light_by_James_O%27Donoghue.gif" class="mw-file-description"><img alt="The diameter of the moon is about one quarter of that of Earth, and their distance is about thirty times the diameter of Earth. A beam of light starts from the Earth and reaches the Moon in about a second and a quarter." src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Earth_and_Moon_speed_of_light_by_James_O%27Donoghue.gif/220px-Earth_and_Moon_speed_of_light_by_James_O%27Donoghue.gif" decoding="async" width="220" height="42" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Earth_and_Moon_speed_of_light_by_James_O%27Donoghue.gif/330px-Earth_and_Moon_speed_of_light_by_James_O%27Donoghue.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Earth_and_Moon_speed_of_light_by_James_O%27Donoghue.gif/440px-Earth_and_Moon_speed_of_light_by_James_O%27Donoghue.gif 2x" data-file-width="646" data-file-height="122" /></a><figcaption>Snop svjetlosti je prikazan kako putuje između Zemlje i Mjeseca za vrijeme koje je potrebno svjetlosnom pulsu da se kreće između njih: 1,255 sekundi na njihovoj srednjoj orbitalnoj udaljenosti (od površine do površine). Relativne veličine i odvojenost sistema Zemlja–Mjesec prikazani su u mjerilu.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Io_eclipse_speed_of_light_measurement.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Io_eclipse_speed_of_light_measurement.svg/220px-Io_eclipse_speed_of_light_measurement.svg.png" decoding="async" width="220" height="110" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Io_eclipse_speed_of_light_measurement.svg/330px-Io_eclipse_speed_of_light_measurement.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Io_eclipse_speed_of_light_measurement.svg/440px-Io_eclipse_speed_of_light_measurement.svg.png 2x" data-file-width="512" data-file-height="256" /></a><figcaption>Mjerenje brzine svjetlosti korištenjem pomračenja Ia od strane Jupitera</figcaption></figure> <p>Brzina svjetlosti jedan je od važnijih <a href="/wiki/Fizika" title="Fizika">fizikalnih</a> pojmova <a href="/wiki/Teorija_relativnosti" title="Teorija relativnosti">teorije relativnosti</a>. Brzinu svjetlosti prvi je odredio danski astronom <a href="/wiki/Ole_R%C3%B8mer" title="Ole Rømer">Olaf Remer</a> <a href="/wiki/1676" class="mw-redirect" title="1676">1676</a>. godine.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Postigao je to zahvaljujući činjenici da je rastojanje koje u njegovim razmatranjima prođe svjetlost veoma veliko, međuplanetarnih dimenzija. On je, promatrajući sa <a href="/wiki/Zemlja_(planeta)" title="Zemlja (planeta)">Zemlje</a>, pratio vrijeme koje protekne od jednog do drugog uzastopnog ulaska, odnosno, izlaska jednog Jupiterovog mjeseca iz sjene planete. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Ole_R%C3%B8mer.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Ole_R%C3%B8mer.jpg/220px-Ole_R%C3%B8mer.jpg" decoding="async" width="220" height="255" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Ole_R%C3%B8mer.jpg/330px-Ole_R%C3%B8mer.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/e/e4/Ole_R%C3%B8mer.jpg 2x" data-file-width="336" data-file-height="389" /></a><figcaption>Ole Rømer</figcaption></figure> <p>Taj najbliži Jupiterov mjesec obiđe planetu za 42 sata i 28 minuta. Romer je zapazio da svaki sljedeći izlazak tog mjeseca kasni, i to zato što se mijenja rastojanje između Jupitera i Zemlje. Obje te planete kruže oko Sunca, Zemlja na manjem rastojanju od Jupitera. Dok Zemlja za godinu dana obđe <a href="/wiki/Sunce" title="Sunce">Sunce</a> jedanput, za isto vrijeme <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a> pređe tek 12-ti dio svoje putanje oko Sunca. Nakon malo više od pola godine, kada Zemlja u odnosu na Jupiter stigne sa druge strane Sunca, udaljenost je od Jupitera za oko 300 miliona kilometara veća nego u početku, tj. za onoliko koliko iznosi prečnik njene putanje oko Sunca. Zbir svih zakašnjenja izlaska Jupiterovog mjeseca iz njegove sjene iznosi tada oko 1.000 sekundi. Ako svjetlost pređe ovaj put za toliko vremena, slijedi da se ona prostire brzinom : </p> <dl><dd><i>c= 300.000.000 km / 1.000 s, c= 300.000 km/s</i> (Napomena: rezultat je približan)</dd></dl> <p>Zbog nepreciznosti mjerenja rastojanja Zemlja- Jupiter u to vrijeme, Remer je dobio nešto manju vrijednost za brzinu svjetlosti. Najnovija mjerenja, uz primjenu tačnijih metoda i preciznijih instrumenata, pokazuju da je brzina svjetlosti u vakuumu 299.792.458 m/s ili približno 299.792 km/s. Tolikom se brzinom u <a href="/wiki/Vakuum" title="Vakuum">vakuumu</a> prenose i svi ostali <a href="/wiki/Elektromagnetno_zra%C4%8Denje" title="Elektromagnetno zračenje">elektromagnetski valovi</a>. U svakoj drugoj optičkoj sredini brzina svjetlosti je manja (npr. u <a href="/wiki/Voda" title="Voda">vodi</a> iznosi 225.000 km/s, u običnom <a href="/wiki/Staklo" title="Staklo">staklu</a> oko 200.000 km/s, u <a href="/wiki/Dijamant" title="Dijamant">dijamantu</a> samo 120.000 km/s, itd.) </p> <div class="mw-heading mw-heading2"><h2 id="Reference">Reference</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Brzina_svjetlosti&veaction=edit&section=1" title="Uredi odlomak "Reference"" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Brzina_svjetlosti&action=edit&section=1" title="Edit section's source code: Reference"><span>uredi izvor</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r3312388">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r3303350">.mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}</style><cite class="citation journal cs1"><a rel="nofollow" class="external text" href="https://www.nist.gov/si-redefinition/definitions-si-base-units">"Definitions of SI Base Units"</a>. <i>NIST</i> (jezik: engleski). 29. 5. 2019.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=NIST&rft.atitle=Definitions+of+SI+Base+Units&rft.date=2019-05-29&rft_id=https%3A%2F%2Fwww.nist.gov%2Fsi-redefinition%2Fdefinitions-si-base-units&rfr_id=info%3Asid%2Fbs.wikipedia.org%3ABrzina+svjetlosti" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r3303350"><cite id="CITEREFMoses_Fayngold2008" class="citation book cs1">Moses Fayngold (2008). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=Q3egk8Ds6ogC"><i>Special Relativity and How it Works</i></a> (illustrated izd.). John Wiley & Sons. str. 497. <a href="/wiki/ISBN_(identifikator)" class="mw-redirect" title="ISBN (identifikator)">ISBN</a> <a href="/wiki/Posebno:Knji%C5%BEni_izvori/978-3-527-40607-4" title="Posebno:Knjižni izvori/978-3-527-40607-4"><bdi>978-3-527-40607-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Special+Relativity+and+How+it+Works&rft.pages=497&rft.edition=illustrated&rft.pub=John+Wiley+%26+Sons&rft.date=2008&rft.isbn=978-3-527-40607-4&rft.au=Moses+Fayngold&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DQ3egk8Ds6ogC&rfr_id=info%3Asid%2Fbs.wikipedia.org%3ABrzina+svjetlosti" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r3303350"><cite id="CITEREFAlbert_Shadowitz1988" class="citation book cs1">Albert Shadowitz (1988). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=1axfJqUT6R0C"><i>Special Relativity</i></a> (revised izd.). Courier Corporation. str. 79. <a href="/wiki/ISBN_(identifikator)" class="mw-redirect" title="ISBN (identifikator)">ISBN</a> <a href="/wiki/Posebno:Knji%C5%BEni_izvori/978-0-486-65743-1" title="Posebno:Knjižni izvori/978-0-486-65743-1"><bdi>978-0-486-65743-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Special+Relativity&rft.pages=79&rft.edition=revised&rft.pub=Courier+Corporation&rft.date=1988&rft.isbn=978-0-486-65743-1&rft.au=Albert+Shadowitz&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D1axfJqUT6R0C&rfr_id=info%3Asid%2Fbs.wikipedia.org%3ABrzina+svjetlosti" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r3303350"><cite id="CITEREFPeresTerno2004" class="citation journal cs1"><a href="/w/index.php?title=Asher_Peres&action=edit&redlink=1" class="new" title="Asher Peres (stranica ne postoji)">Peres, Asher</a>; Terno, Daniel R. (6. 1. 2004). <a rel="nofollow" class="external text" href="https://link.aps.org/doi/10.1103/RevModPhys.76.93">"Quantum information and relativity theory"</a>. <i>Reviews of Modern Physics</i> (jezik: engleski). <b>76</b> (1): 93–123. <a href="/w/index.php?title=ArXiv_(identifikator)&action=edit&redlink=1" class="new" title="ArXiv (identifikator) (stranica ne postoji)">arXiv</a>:<span class="cs1-lock-free" title="Slobodno dostupno"><a rel="nofollow" class="external text" href="//arxiv.org/abs/quant-ph/0212023">quant-ph/0212023</a></span>. <a href="/wiki/Bibcode_(identifikator)" class="mw-redirect" title="Bibcode (identifikator)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2004RvMP...76...93P">2004RvMP...76...93P</a>. <a href="/wiki/Doi_(identifikator)" class="mw-redirect" title="Doi (identifikator)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1103%2FRevModPhys.76.93">10.1103/RevModPhys.76.93</a>. <a href="/wiki/ISSN_(identifikator)" class="mw-redirect" title="ISSN (identifikator)">ISSN</a> <a rel="nofollow" class="external text" href="//www.worldcat.org/issn/0034-6861">0034-6861</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Reviews+of+Modern+Physics&rft.atitle=Quantum+information+and+relativity+theory&rft.volume=76&rft.issue=1&rft.pages=93-123&rft.date=2004-01-06&rft_id=info%3Aarxiv%2Fquant-ph%2F0212023&rft.issn=0034-6861&rft_id=info%3Adoi%2F10.1103%2FRevModPhys.76.93&rft_id=info%3Abibcode%2F2004RvMP...76...93P&rft.aulast=Peres&rft.aufirst=Asher&rft.au=Terno%2C+Daniel+R.&rft_id=https%3A%2F%2Flink.aps.org%2Fdoi%2F10.1103%2FRevModPhys.76.93&rfr_id=info%3Asid%2Fbs.wikipedia.org%3ABrzina+svjetlosti" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r3303350"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.amnh.org/learn-teach/curriculum-collections/cosmic-horizons-book/ole-roemer-speed-of-light#:~:text=Until%20that%20time%2C%20scientists%20assumed,light%20when%20he%20found%20it.">"Ole Roemer and the Speed of Light"</a>. American Museum of Natural History.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Ole+Roemer+and+the+Speed+of+Light&rft.pub=American+Museum+of+Natural+History&rft_id=https%3A%2F%2Fwww.amnh.org%2Flearn-teach%2Fcurriculum-collections%2Fcosmic-horizons-book%2Fole-roemer-speed-of-light%23%3A~%3Atext%3DUntil%2520that%2520time%252C%2520scientists%2520assumed%2Clight%2520when%2520he%2520found%2520it.&rfr_id=info%3Asid%2Fbs.wikipedia.org%3ABrzina+svjetlosti" class="Z3988"></span></span> </li> </ol></div></div> <p><br clear="all" /> <span typeof="mw:File"><a href="/wiki/Datoteka:Nuvola_apps_kalzium.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Nuvola_apps_kalzium.svg/25px-Nuvola_apps_kalzium.svg.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Nuvola_apps_kalzium.svg/38px-Nuvola_apps_kalzium.svg.png 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