{"id":295268,"date":"2020-06-30T08:17:17","date_gmt":"2020-06-30T06:17:17","guid":{"rendered":"https:\/\/www.pcnen.com\/portal\/?p=295268"},"modified":"2020-06-30T10:23:16","modified_gmt":"2020-06-30T08:23:16","slug":"kosmicki-svjetionici","status":"publish","type":"post","link":"https:\/\/www.pcnen.com\/portal\/2020\/06\/30\/kosmicki-svjetionici\/","title":{"rendered":"Kosmi\u010dki svjetionici"},"content":{"rendered":"<p>Nau\u010dnici na Internacionalnoj svemirskoj stanici tragaju za GPS alternativama koje bi bile od pomo\u0107i tokom putovanja po dubokom svemiru. Umesto da izaberu konstelacije satelita, nau\u010dnici preporu\u010duju neutronske zvijezde \u2013 ostatke zvijezda koji su pretekli nakon neke eksplozije \u2013 te ih ve\u0107 nazivaju \u201ekosmi\u010dkim svjetionicima\u201c. Preciznije, eksperti tragaju za pulsarima (neutronske zvijezde pre\u010dnika oko 10 kilometara koje brzo rotiraju), koji emituju X-zrake, sli\u010dno kao \u0161to svetionici to \u010dine sa svjetlo\u0161\u0107u na Zemlji, prenosi PC press.<\/p>\n<p>Rentgenski teleskop NICER (Neutron star Interior Composition Explorer), koji je pri\u010dvr\u0161\u0107en za spolja\u0161nji dio svemirske stanice, ve\u0107 kreira GPS mape neutronskih zvezda, a ideja koja predla\u017ee da se ove zvijezde koriste za navigaciju ponijela je ime \u201cXNAV\u201d . Koncept se ve\u0107 opisuje kao pouzdan, budu\u0107i da je u eksperimenti iz 2018. godine dokazano da bi ovakav sistem za navigaciju mogao da funkcioni\u0161e, i bude koristan autonomnim letjelicama.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ostaci uga\u0161enih zvijezda mogli bi jednog dana da poslu\u017ee kao orijentiri za autonomne kosmi\u010dke letjelice.<\/p>\n","protected":false},"author":1,"featured_media":280971,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_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":[9],"tags":[],"class_list":["post-295268","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zanimljivosti"],"_links":{"self":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/295268","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=295268"}],"version-history":[{"count":3,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/295268\/revisions"}],"predecessor-version":[{"id":295282,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/295268\/revisions\/295282"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media\/280971"}],"wp:attachment":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media?parent=295268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/categories?post=295268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/tags?post=295268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}