Le 1er juillet durera une seconde de plus !\u00a0La nuit du 30 juin au 1er juillet 2015 va \u00eatre plus longue qu\u2019\u00e0 l\u2019accoutum\u00e9e. Elle durera une seconde de plus.<\/strong><\/p>\nCette seconde suppl\u00e9mentaire, ou \u00ab intercalaire \u00bb, permet de raccorder le temps astronomique irr\u00e9gulier li\u00e9 \u00e0 la rotation de la Terre, avec l\u2019\u00e9chelle de temps l\u00e9gal d\u00e9fini depuis 1967 par des horloges atomiques.<\/p>\n
Le dernier ajout d’une seconde intercalaire a \u00e9t\u00e9 effectu\u00e9 en\u00a02012. Ce changement a \u00e9t\u00e9 effectu\u00e9 35\u00a0fois\u00a0depuis\u00a01972.<\/p>\n
Dans le cadre de l\u2019UIT (Union Internationale des T\u00e9l\u00e9communications) une r\u00e9union, \u00e0 ce sujet,\u00a0 doit avoir lieu\u00a0 en novembre 2015 \u00e0 Gen\u00e8ve.\u00a0La seconde intercalaire pourrait bien dispara\u00eetre !<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"Le 1er juillet durera une seconde de plus !\u00a0La nuit du 30 juin au 1er juillet 2015 va \u00eatre plus […]<\/p>\n","protected":false},"author":52,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,1763,111,10,5],"tags":[],"acf":[],"yoast_head":"\n
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