{"id":807,"date":"2014-09-05T08:00:27","date_gmt":"2014-09-05T08:00:27","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=807"},"modified":"2014-09-13T08:16:32","modified_gmt":"2014-09-13T08:16:32","slug":"meridien-greenwich","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/09\/05\/meridien-greenwich\/","title":{"rendered":"Le m\u00e9ridien de Greenwich"},"content":{"rendered":"<p>C&#8217;est dans la cour de l&#8217;Observatoire royal de Greenwich (cr\u00e9\u00e9 en 1675 dans la banlieue de Londres sur ordre de Charles II d&#8217;Angleterre) que passe le premier m\u00e9ridien (appel\u00e9 m\u00e9ridien de Greenwich) qui fut adopt\u00e9 comme standard international en 1884, d\u00e9tr\u00f4nant le m\u00e9ridien de Paris.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/09\/m\u00e9ridien.jpg\" rel=\"lightbox[807]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-808\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/09\/m\u00e9ridien-450x337.jpg\" alt=\"m\u00e9ridien\" width=\"450\" height=\"337\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/09\/m\u00e9ridien-450x337.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/09\/m\u00e9ridien-1024x768.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/09\/m\u00e9ridien.jpg 1200w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Rappelons que les m\u00e9ridiens et les parall\u00e8les sont des lignes imaginaires qui permettent de d\u00e9finir les coordonn\u00e9es g\u00e9ographiques (latitude et longitude) de tout point terrestre.<\/p>\n<p><!--more-->Les m\u00e9ridiens relient les p\u00f4les terrestres tandis que les parall\u00e8les sont trac\u00e9s de part et d&#8217;autre de l&#8217;\u00e9quateur terrestre. Alors que le parall\u00e8le d&#8217;origine (l&#8217;\u00e9quateur terrestre) a une existence g\u00e9ographique (il s\u00e9pare les deux h\u00e9misph\u00e8res terrestres), le m\u00e9ridien d&#8217;origine est totalement arbitraire.<\/p>\n<p>Signalons pour terminer que les Anglais, d\u00e9sireux d&#8217;avoir chez eux le m\u00e9ridien d&#8217;origine en 1884, promirent en \u00e9change de se convertir au syst\u00e8me m\u00e9trique&#8230; ce qu&#8217;ils ne firent jamais.<\/p>\n<p>Si vous visitez l&#8217;Observatoire royal de Greenwich, vous y verrez \u00e9galement<a title=\"Le t\u00e9lescope de William Herschel\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/12\/telescope-william-herschel\/\" target=\"_blank\"> le t\u00e9lescope de William Herschel<\/a>.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>C&#8217;est dans la cour de l&#8217;Observatoire royal de Greenwich (cr\u00e9\u00e9 en 1675 dans la banlieue de Londres sur ordre de Charles II d&#8217;Angleterre) que passe le premier m\u00e9ridien (appel\u00e9 m\u00e9ridien de Greenwich) qui fut adopt\u00e9 comme standard international en 1884, d\u00e9tr\u00f4nant le m\u00e9ridien de Paris. Rappelons que les m\u00e9ridiens et les parall\u00e8les sont des lignes &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/09\/05\/meridien-greenwich\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Le m\u00e9ridien de Greenwich<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":808,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[87],"tags":[367,218,361,368,365,369,362,104,363,366,364,370],"class_list":["post-807","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-hommes-et-le-ciel","tag-charles-ii-dagleterre","tag-equateur","tag-greenwich","tag-latitude","tag-londres","tag-longitude","tag-meridien","tag-observatoire","tag-parallele","tag-paris","tag-pole","tag-systeme-metrique"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>meridien greenwich<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/09\/05\/meridien-greenwich\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"meridien greenwich\" \/>\n<meta property=\"og:description\" content=\"C&#8217;est dans la cour de l&#8217;Observatoire royal de Greenwich (cr\u00e9\u00e9 en 1675 dans la banlieue de Londres sur ordre de Charles II d&#8217;Angleterre) que passe le premier m\u00e9ridien (appel\u00e9 m\u00e9ridien de Greenwich) qui fut adopt\u00e9 comme standard international en 1884, d\u00e9tr\u00f4nant le m\u00e9ridien de Paris. 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