{"id":35789,"date":"2017-11-13T10:25:16","date_gmt":"2017-11-13T07:25:16","guid":{"rendered":"http:\/\/btv.md\/?p=35789"},"modified":"2017-11-13T15:26:15","modified_gmt":"2017-11-13T12:26:15","slug":"de-ce-este-cerul-intunecat-noaptea-explicatia-completa-a-unui-vechi-paradox","status":"publish","type":"post","link":"https:\/\/www.btv.md\/ro\/de-ce-este-cerul-intunecat-noaptea-explicatia-completa-a-unui-vechi-paradox\/","title":{"rendered":"De ce este cerul \u00eentunecat noaptea? Explica\u021bia complet\u0103 a unui vechi paradox"},"content":{"rendered":"<p class=\"post-text-desc\"><strong>Oamenii de \u0219tiin\u021b\u0103 sus\u021bin c\u0103 au aflat motivul pentru care cerul este \u00eentunecat noaptea. \u201eParadoxul lui Olber\u201d, este numele fenomenului care descrie cromatica nocturn\u0103 a cerului.<\/strong><\/p>\n<p>Formulat prima oar\u0103 \u00een anul 1500, paradoxul lui Olber pune urm\u0103toarea problem\u0103: dac\u0103 Universul este infinit \u0219i nu are o v\u00e2rst\u0103, de ce oamenii nu observ\u0103, pe timp de noapte, un c\u00e2mp uniform de stele, \u00een locul unui cer negru?<\/p>\n<p>Explica\u0163ia modern\u0103 sugereaz\u0103 c\u0103 Universul este finit, are o v\u00e2rst\u0103, se extinde foarte rapid \u015fi schimb\u0103 lumina stelelor de la distan\u0163\u0103 \u00een culori pe care ochiul uman nu le poate percepe. Un nou studiu publicat \u00een revista The Astrophysical Journal expune, \u00een sf\u00e2r\u015fit, o explica\u0163ie complet\u0103 a paradoxului lui Olber, transmite\u00a0<a href=\"http:\/\/www.digi24.ro\/stiri\/sci-tech\/de-ce-este-cerul-intunecat-noaptea-explicatia-completa-a-unui-vechi-paradox-825306\" target=\"_blank\" rel=\"noopener noreferrer nofollow\">digi24.ro<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oamenii de \u0219tiin\u021b\u0103 sus\u021bin c\u0103 au aflat motivul pentru care cerul este \u00eentunecat noaptea. \u201eParadoxul lui Olber\u201d, este numele fenomenului care descrie cromatica nocturn\u0103 a cerului. Formulat prima oar\u0103 \u00een anul 1500, paradoxul lui Olber pune urm\u0103toarea problem\u0103: dac\u0103 Universul este infinit \u0219i nu are o v\u00e2rst\u0103, de ce oamenii nu observ\u0103, pe timp de [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":35790,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6354],"tags":[],"class_list":["post-35789","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-externe-ro"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>De ce este cerul \u00eentunecat noaptea? 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