{"id":1121,"date":"2011-09-08T09:33:07","date_gmt":"2011-09-08T09:33:07","guid":{"rendered":"http:\/\/kpv.rs\/?p=1121"},"modified":"2011-09-08T09:33:07","modified_gmt":"2011-09-08T09:33:07","slug":"%e2%80%9ecrne-rupe%e2%80%9d-su-u-stvari-zelene","status":"publish","type":"post","link":"http:\/\/kpv.rs\/?p=1121","title":{"rendered":"\u201eCrne rupe\u201d su, u stvari, zelene"},"content":{"rendered":"<p>Mo\u017eete li da zamislite da su \u201ecrne rupe\u201d, najve\u0107e pro\u017edrljivice svekolike kosmi\u010dke materije, prili\u010dno \u0161tedljive, \u010dak veoma mnogo u ekolo\u0161kom smislu? Nedavno je Stiv Alen, profesor astrofizike na Univerzitetu Stanford, izjavio da su \u201ecrne rupe\u201d \u2013 zelene. Kako je to mogu\u0107e?<\/p>\n<p>Iako su uvek crne, akako je mogu\u0107e da budu zelene?<\/p>\n<p>Obja\u0161njenje se krije u \u0161tedljivosti, imaju\u0107i u vidu da predstavljaju svojevrsne ogromne motore. Naime, pomo\u0107u svemirskog teleskopa \u201e\u010candra\u201d ustanovljeno je da imaju, \u010dak, 20 puta ve\u0107i energetski u\u010dinak od nuklearnih elektrana. Kada bi ma koji automobil bio toliko \u0161tedljiv, sa samo \u010detiri litra benzina pre\u0161ao bi vi\u0161e od milijardu kilometara!<\/p>\n<p>Astrofizi\u010dari su, ina\u010de, posmatrali devet starih i vrlo velikih \u201ecrnih rupa\u201d i sve su tro\u0161ile gotovo istovetnu koli\u010dinu energije. Ali kako su to, uop\u0161te, izra\u010dunali?<\/p>\n<p>S jedne strane su sra\u010dunali koli\u010dinu energije mlazeva, a s druge su uporedili koli\u010dinu energije gasova koje usisava \u201ecrnu rupa\u201d. I na osnovu toga su uvrdili da su delotvornije od svih pogonskih motora i ma\u0161ina na Zemlji.<\/p>\n<p>&nbsp;<\/p>\n\n<div class=\"jwsharethis\">\nPodelite \u010dlanak: \n<br \/>\n<a href=\"mailto:?subject=%E2%80%9ECrne%20rupe%E2%80%9D%20su%2C%20u%20stvari%2C%20zelene&amp;body=http%3A%2F%2Fkpv.rs%2F%3Fp%3D1121\">\n<img src=\"http:\/\/kpv.rs\/wp-content\/plugins\/jw-share-this\/email.png\" alt=\"Podelite putem email-a\" \/>\n<\/a>\n<a target=\"_blank\" href=\"http:\/\/www.facebook.com\/sharer.php?u=http%3A%2F%2Fkpv.rs%2F%3Fp%3D1121&amp;t=%E2%80%9ECrne+rupe%E2%80%9D+su%2C+u+stvari%2C+zelene\">\n<img src=\"http:\/\/kpv.rs\/wp-content\/plugins\/jw-share-this\/fb.png\" alt=\"Podelite ovaj tekst na facebook-u\" \/>\n<\/a>\n<a target=\"_blank\" href=\"http:\/\/twitter.com\/intent\/tweet?text=I+like+http%3A%2F%2Fkpv.rs%2F%3Fp%3D1121&amp;title=%E2%80%9ECrne+rupe%E2%80%9D+su%2C+u+stvari%2C+zelene\">\n<img src=\"http:\/\/kpv.rs\/wp-content\/plugins\/jw-share-this\/twitter.png\" alt=\"Podelite putem Twitter-a\" \/>\n<\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Mo\u017eete li da zamislite da su \u201ecrne rupe\u201d, najve\u0107e pro\u017edrljivice svekolike kosmi\u010dke materije, prili\u010dno \u0161tedljive, \u010dak veoma mnogo u ekolo\u0161kom smislu? Nedavno je Stiv Alen, profesor astrofizike na Univerzitetu Stanford, izjavio da su \u201ecrne rupe\u201d \u2013 zelene. Kako je to mogu\u0107e? Iako su uvek crne, akako je mogu\u0107e da budu zelene? Obja\u0161njenje se krije u [&hellip;]<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"_links":{"self":[{"href":"http:\/\/kpv.rs\/index.php?rest_route=\/wp\/v2\/posts\/1121"}],"collection":[{"href":"http:\/\/kpv.rs\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/kpv.rs\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/kpv.rs\/index.php?rest_route=\/wp\/v2\/users\/53"}],"replies":[{"embeddable":true,"href":"http:\/\/kpv.rs\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1121"}],"version-history":[{"count":2,"href":"http:\/\/kpv.rs\/index.php?rest_route=\/wp\/v2\/posts\/1121\/revisions"}],"predecessor-version":[{"id":1123,"href":"http:\/\/kpv.rs\/index.php?rest_route=\/wp\/v2\/posts\/1121\/revisions\/1123"}],"wp:attachment":[{"href":"http:\/\/kpv.rs\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/kpv.rs\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1121"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/kpv.rs\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}