{"id":447562,"date":"2025-12-26T19:30:20","date_gmt":"2025-12-26T18:30:20","guid":{"rendered":"https:\/\/www.pcnen.com\/portal\/?p=447562"},"modified":"2025-12-26T19:30:20","modified_gmt":"2025-12-26T18:30:20","slug":"jezgro-zemlje-je-istovremeno-cvrsto-i-tecno","status":"publish","type":"post","link":"https:\/\/www.pcnen.com\/portal\/2025\/12\/26\/jezgro-zemlje-je-istovremeno-cvrsto-i-tecno\/","title":{"rendered":"Jezgro Zemlje je istovremeno \u010dvrsto i te\u010dno"},"content":{"rendered":"<p>Nau\u010dnici su napokon eksperimentalno dokazali postojanje neobi\u010dnog stanja materije, istovremeno \u010dvrstog i te\u010dnog, za koje se dugo teoretisalo da se nalazi u samom sredi\u0161tu na\u0161e planete. Ovo superionsko stanje moglo bi objasniti neka zbunjuju\u0107a seizmi\u010dka o\u010ditanja koja su sugerisala da je Zemljino unutra\u0161nje jezgro mekano poput maslaca, a ne kruto kao \u010delik, pi\u0161e Science Alert.<\/p>\n<p>&#8220;Prvi put smo eksperimentalno pokazali da legura \u017eeljeza i ugljenika pod uslovima unutra\u0161njeg jezgra pokazuje izrazito nisku brzinu smicanja,&#8221; poja\u0161njava fizi\u010dar Joujun \u017dang sa Univerziteta Se\u010duan u Kini.<\/p>\n<p>&#8220;U ovom stanju, atomi ugljenika postaju vrlo pokretljivi, difuziraju\u0107i kroz kristalnu \u017eeljeznu strukturu poput djece koja se provla\u010de kroz \u010detvorni ples, dok samo \u017eeljezo ostaje \u010dvrsto i ure\u0111eno. Ova takozvana &#8216;superionska faza&#8217; dramati\u010dno smanjuje krutost legure&#8221;, prenosi Index.hr.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Prvi put smo eksperimentalno pokazali da legura \u017eeljeza i ugljenika pod uslovima unutra\u0161njeg jezgra pokazuje izrazito nisku brzinu smicanja,&#8221; poja\u0161njava fizi\u010dar Joujun \u017dang sa Univerziteta Se\u010duan u Kini<\/p>\n","protected":false},"author":1,"featured_media":342324,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-447562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vijesti"],"_links":{"self":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/447562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/comments?post=447562"}],"version-history":[{"count":1,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/447562\/revisions"}],"predecessor-version":[{"id":447565,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/447562\/revisions\/447565"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media\/342324"}],"wp:attachment":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media?parent=447562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/categories?post=447562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/tags?post=447562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}