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Conto alla rovescia - Wikipedia

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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="Mostra/Nascondi l&#039;indice" > <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">Mostra/Nascondi l&#039;indice</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">Conto alla rovescia</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="Vai a una voce in un&#039;altra lingua. Disponibile in 19 lingue" > <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-19" 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">19 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B9%D8%AF_%D8%AA%D9%86%D8%A7%D8%B2%D9%84%D9%8A" title="عد تنازلي - arabo" lang="ar" hreflang="ar" data-title="عد تنازلي" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Countdown" title="Countdown - tedesco" lang="de" hreflang="de" data-title="Countdown" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Countdown" title="Countdown - inglese" lang="en" hreflang="en" data-title="Countdown" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Cuenta_atr%C3%A1s" title="Cuenta atrás - spagnolo" lang="es" hreflang="es" data-title="Cuenta atrás" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B4%D9%85%D8%A7%D8%B1%D8%B4_%D9%85%D8%B9%DA%A9%D9%88%D8%B3" title="شمارش معکوس - persiano" lang="fa" hreflang="fa" data-title="شمارش معکوس" data-language-autonym="فارسی" data-language-local-name="persiano" 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/L%C3%A4ht%C3%B6laskenta" title="Lähtölaskenta - finlandese" lang="fi" hreflang="fi" data-title="Lähtölaskenta" data-language-autonym="Suomi" data-language-local-name="finlandese" 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/Compte_%C3%A0_rebours" title="Compte à rebours - francese" lang="fr" hreflang="fr" data-title="Compte à rebours" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A1%D7%A4%D7%99%D7%A8%D7%94_%D7%9C%D7%90%D7%97%D7%95%D7%A8" title="ספירה לאחור - ebraico" lang="he" hreflang="he" data-title="ספירה לאחור" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Hitung_mundur" title="Hitung mundur - indonesiano" lang="id" hreflang="id" data-title="Hitung mundur" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%AB%E3%82%A6%E3%83%B3%E3%83%88%E3%83%80%E3%82%A6%E3%83%B3" title="カウントダウン - giapponese" lang="ja" hreflang="ja" data-title="カウントダウン" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%B9%B4%EC%9A%B4%ED%8A%B8%EB%8B%A4%EC%9A%B4" title="카운트다운 - coreano" lang="ko" hreflang="ko" data-title="카운트다운" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9E%D0%B1%D1%80%D0%B0%D1%82%D0%BD%D1%8B%D0%B9_%D0%BE%D1%82%D1%81%D1%87%D1%91%D1%82" title="Обратный отсчёт - russo" lang="ru" hreflang="ru" data-title="Обратный отсчёт" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Countdown" title="Countdown - Simple English" lang="en-simple" hreflang="en-simple" data-title="Countdown" 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-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%99%E0%B8%B1%E0%B8%9A%E0%B8%96%E0%B8%AD%E0%B8%A2%E0%B8%AB%E0%B8%A5%E0%B8%B1%E0%B8%87" title="การนับถอยหลัง - thailandese" lang="th" hreflang="th" data-title="การนับถอยหลัง" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Geri_say%C4%B1m" title="Geri sayım - turco" lang="tr" hreflang="tr" data-title="Geri sayım" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A7%D9%84%D9%B9_%DA%AF%D9%86%D8%AA%DB%8C_%DA%AF%DA%BE%DA%91%DB%8C%D8%A7%D9%84" title="الٹ گنتی گھڑیال - urdu" lang="ur" hreflang="ur" data-title="الٹ گنتی گھڑیال" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90%E1%BA%BFm_ng%C6%B0%E1%BB%A3c" title="Đếm ngược - vietnamita" lang="vi" hreflang="vi" data-title="Đếm ngược" 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-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%80%92%E8%A8%88%E6%99%82" title="倒計時 - cinese" lang="zh" hreflang="zh" data-title="倒計時" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%80%92%E6%95%B8" title="倒數 - cantonese" lang="yue" hreflang="yue" data-title="倒數" data-language-autonym="粵語" data-language-local-name="cantonese" 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/Q775594#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</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="Namespace"> <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/Conto_alla_rovescia" title="Vedi la voce [c]" accesskey="c"><span>Voce</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Discussione:Conto_alla_rovescia&amp;action=edit&amp;redlink=1" rel="discussion" class="new" title="Vedi le discussioni relative a questa pagina (la pagina non esiste) [t]" accesskey="t"><span>Discussione</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="Cambia versione linguistica" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">italiano</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visite"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Conto_alla_rovescia"><span>Leggi</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Conto_alla_rovescia&amp;veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=history" title="Versioni precedenti di questa pagina [h]" accesskey="h"><span>Cronologia</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Strumenti" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Strumenti</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">Strumenti</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">nascondi</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Altre opzioni" > <div class="vector-menu-heading"> Azioni </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/Conto_alla_rovescia"><span>Leggi</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Conto_alla_rovescia&amp;veaction=edit" title="Modifica questa pagina [v]" accesskey="v"><span>Modifica</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=edit" title="Modifica il wikitesto di questa pagina [e]" accesskey="e"><span>Modifica wikitesto</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=history"><span>Cronologia</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generale </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speciale:PuntanoQui/Conto_alla_rovescia" title="Elenco di tutte le pagine che sono collegate a questa [j]" accesskey="j"><span>Puntano qui</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speciale:ModificheCorrelate/Conto_alla_rovescia" rel="nofollow" title="Elenco delle ultime modifiche alle pagine collegate a questa [k]" accesskey="k"><span>Modifiche correlate</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speciale:PagineSpeciali" title="Elenco di tutte le pagine speciali [q]" accesskey="q"><span>Pagine speciali</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Conto_alla_rovescia&amp;oldid=142287205" title="Collegamento permanente a questa versione di questa pagina"><span>Link permanente</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=info" title="Ulteriori informazioni su questa pagina"><span>Informazioni pagina</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Speciale:Cita&amp;page=Conto_alla_rovescia&amp;id=142287205&amp;wpFormIdentifier=titleform" title="Informazioni su come citare questa pagina"><span>Cita questa voce</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Speciale:UrlShortener&amp;url=https%3A%2F%2Fit.wikipedia.org%2Fwiki%2FConto_alla_rovescia"><span>Ottieni URL breve</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a 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</div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In altri progetti </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:Countdowns" hreflang="en"><span>Wikimedia Commons</span></a></li><li class="wb-otherproject-link wb-otherproject-wikiquote mw-list-item"><a href="https://it.wikiquote.org/wiki/Conto_alla_rovescia" hreflang="it"><span>Wikiquote</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/Q775594" title="Collegamento all&#039;elemento connesso dell&#039;archivio dati [g]" accesskey="g"><span>Elemento Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div 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.hatnote-icon{flex-shrink:0}.mw-parser-output .hatnote-icon img{display:flex}.mw-parser-output .hatnote-text{font-style:italic}body:not(.skin-minerva) .mw-parser-output .hatnote{border:1px solid #CCC;display:flex;margin:.5em 0;padding:.2em .5em}body:not(.skin-minerva) .mw-parser-output .hatnote-text{padding-left:.5em}body.skin-minerva .mw-parser-output .hatnote-icon{padding-right:8px}body.skin-minerva .mw-parser-output .hatnote-icon img{height:auto;width:16px}body.skin--responsive .mw-parser-output .hatnote a.new{color:#d73333}body.skin--responsive .mw-parser-output .hatnote a.new:visited{color:#a55858}</style> <div class="hatnote noprint nota-disambigua"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/18px-Nota_disambigua.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/27px-Nota_disambigua.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/36px-Nota_disambigua.svg.png 2x" data-file-width="200" data-file-height="200" /></span></span> <span class="hatnote-text"><a href="/wiki/Aiuto:Disambiguazione" title="Aiuto:Disambiguazione">Disambiguazione</a> – Se stai cercando altri significati, vedi <b><a href="/wiki/Conto_alla_rovescia_(disambigua)" class="mw-disambig" title="Conto alla rovescia (disambigua)">Conto alla rovescia (disambigua)</a></b>.</span></div> </div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Countdown_to_Winter_Olympics_Sochi_2012_(7741400914).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Countdown_to_Winter_Olympics_Sochi_2012_%287741400914%29.jpg/350px-Countdown_to_Winter_Olympics_Sochi_2012_%287741400914%29.jpg" decoding="async" width="350" height="233" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Countdown_to_Winter_Olympics_Sochi_2012_%287741400914%29.jpg/525px-Countdown_to_Winter_Olympics_Sochi_2012_%287741400914%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Countdown_to_Winter_Olympics_Sochi_2012_%287741400914%29.jpg/700px-Countdown_to_Winter_Olympics_Sochi_2012_%287741400914%29.jpg 2x" data-file-width="4896" data-file-height="3264" /></a><figcaption>Tabellone che riporta un conto alla rovescia prima dell'inizio dei <a href="/wiki/XXII_Giochi_olimpici_invernali" title="XXII Giochi olimpici invernali">Giochi olimpici invernali di Sochi</a> (2014)</figcaption></figure> <p>Il <b>conto</b> o <b>conteggio alla rovescia</b> (a volte riportato con il corrispettivo termine <a href="/wiki/Lingua_inglese" title="Lingua inglese">inglese</a> <i>countdown</i>, anche riportato con la grafia <i>count-down</i>)<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> è un conteggio inverso che serve a indicare il tempo rimasto prima che accada qualcosa. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Storia">Storia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Conto_alla_rovescia&amp;veaction=edit&amp;section=1" title="Modifica la sezione Storia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=edit&amp;section=1" title="Edit section&#039;s source code: Storia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Secondo <i><a href="/wiki/Smithsonian_(rivista)" title="Smithsonian (rivista)">Smithsonian</a></i>, prima degli anni sessanta e settanta del Novecento, «poca gente faceva i conti alla rovescia per qualsiasi cosa»; la rivista riporta tra i primi conteggi a ritroso quello citato nel film di <a href="/wiki/Fritz_Lang" title="Fritz Lang">Fritz Lang</a> del 1929 <i><a href="/wiki/Una_donna_nella_luna" title="Una donna nella luna">Una donna nella luna</a></i> e l'<a href="/wiki/Orologio_dell%27apocalisse" title="Orologio dell&#39;apocalisse">Orologio dell'apocalisse</a>, inaugurato nel 1947 dalla <i><a href="/wiki/Bulletin_of_the_Atomic_Scientists" title="Bulletin of the Atomic Scientists">Bulletin of the Atomic Scientists</a></i> per calcolare il tempo rimasto prima che accada un'ipotetica <a href="/wiki/Fine_del_mondo" title="Fine del mondo">fine del mondo</a> a cui l'umanità sarà sottoposta.<sup id="cite_ref-SM_2-0" class="reference"><a href="#cite_note-SM-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> Negli anni seguenti, gli stessi scienziati contribuiranno all'inserimento del termine <i>count down</i> nel lessico dell'<a href="/wiki/Inglese_americano" title="Inglese americano">inglese americano</a>.<sup id="cite_ref-SM_2-1" class="reference"><a href="#cite_note-SM-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p><p>I conteggi alla rovescia sono diventati una componente fondamentale in campo aerospaziale in quanto, prima della <a href="/wiki/Volo_spaziale" title="Volo spaziale">partenza</a> di un <a href="/wiki/Veicolo_spaziale" title="Veicolo spaziale">veicolo</a>, viene recitato un conto alla rovescia. Uno dei più famosi di questo tipo è quello che avvenne prima del lancio dell'<a href="/wiki/Apollo_11" title="Apollo 11">Apollo 11</a> nel 1969, divenuto parte integrante di un evento epocale.<sup id="cite_ref-SM_2-2" class="reference"><a href="#cite_note-SM-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p><p>Negli anni settanta, i conti alla rovescia hanno rivestito un certo rilievo anche per ciò che riguarda i test nei poligoni nucleari.<sup id="cite_ref-SM_2-3" class="reference"><a href="#cite_note-SM-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p><p>Il conteggio alla rovescia viene oggi usato in molteplici ambiti. In tutto il mondo, si recitano i secondi rimanenti prima dell'<a href="/wiki/Capodanno" title="Capodanno">avvento di un nuovo anno</a>. Inoltre, i conteggi alla rovescia vengono usati prima degli eventi sportivi e i programmi televisivi.<sup id="cite_ref-SM_2-4" class="reference"><a href="#cite_note-SM-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Conto_alla_rovescia&amp;veaction=edit&amp;section=2" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=edit&amp;section=2" title="Edit section&#039;s source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.treccani.it/vocabolario/count-down/"><span style="font-style:italic;">Count-down</span></a>, su <span style="font-style:italic;">treccani.it</span>. <small>URL consultato il 22 novembre 2024</small>.</cite></span> </li> <li id="cite_note-SM-2"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-SM_2-0">a</a></i></sup> <sup><i><a href="#cite_ref-SM_2-1">b</a></i></sup> <sup><i><a href="#cite_ref-SM_2-2">c</a></i></sup> <sup><i><a href="#cite_ref-SM_2-3">d</a></i></sup> <sup><i><a href="#cite_ref-SM_2-4">e</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.smithsonianmag.com/history/why-do-we-count-down-to-the-new-year-180979289/"><span style="font-style:italic;">Why Do We Count Down to the New Year?</span></a>, su <span style="font-style:italic;">smithsonianmag.com</span>. <small>URL consultato il 22 novembre 2024</small>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Conto_alla_rovescia&amp;veaction=edit&amp;section=3" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=edit&amp;section=3" title="Edit section&#039;s source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Notte_di_San_Silvestro" title="Notte di San Silvestro">Notte di San Silvestro</a></li> <li><a href="/wiki/Temporizzatore" title="Temporizzatore">Temporizzatore</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Conto_alla_rovescia&amp;veaction=edit&amp;section=4" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Conto_alla_rovescia&amp;action=edit&amp;section=4" title="Edit section&#039;s source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><a href="https://it.wikiquote.org/wiki/Conto_alla_rovescia" class="extiw" title="q:Conto alla rovescia">Wikiquote</a></li> <li class="" title=""><span class="plainlinks" title="commons:Category:Countdowns"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Countdowns?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://it.wikiquote.org/wiki/" title="Collabora a Wikiquote"><img alt="Collabora a Wikiquote" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/18px-Wikiquote-logo.svg.png" decoding="async" width="18" height="21" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/27px-Wikiquote-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikiquote-logo.svg/36px-Wikiquote-logo.svg.png 2x" data-file-width="300" data-file-height="355" /></a></span> <a href="https://it.wikiquote.org/wiki/" class="extiw" title="q:">Wikiquote</a> contiene citazioni sul <b><a href="https://it.wikiquote.org/wiki/Conto_alla_rovescia" class="extiw" title="q:Conto alla rovescia">conto alla rovescia</a></b></li> <li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file sul <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Countdowns?uselang=it">conto alla rovescia</a></span></b></li></ul> <!-- NewPP limit report Parsed by mw‐api‐int.codfw.main‐849f99967d‐plzvl Cached time: 20241122091933 Cache expiry: 2592000 Reduced expiry: false Complications: [show‐toc] CPU time usage: 0.141 seconds Real time usage: 0.198 seconds Preprocessor visited node count: 206/1000000 Post‐expand include size: 4649/2097152 bytes Template argument size: 214/2097152 bytes Highest expansion depth: 14/100 Expensive parser function count: 0/500 Unstrip recursion depth: 0/20 Unstrip post‐expand size: 3381/5000000 bytes Lua time usage: 0.049/10.000 seconds Lua memory usage: 2094493/52428800 bytes Number of Wikibase entities loaded: 1/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 156.014 1 -total 35.01% 54.615 1 Template:Nota_disambigua 30.71% 47.905 1 Template:Interprogetto 28.66% 44.718 1 Template:Avviso_permanente 27.95% 43.605 2 Template:Cita_web 13.83% 21.573 1 Template:Str_find --> <!-- Saved in parser cache with key itwiki:pcache:idhash:10305525-0!canonical and timestamp 20241122091933 and revision id 142287205. 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