{"id":21040335,"date":"2017-05-22T13:27:30","date_gmt":"2017-05-22T11:27:30","guid":{"rendered":"https:\/\/geek.hr\/znanost\/?p=21040335"},"modified":"2020-10-15T16:14:20","modified_gmt":"2020-10-15T14:14:20","slug":"fotografije-iz-svemira-otkrivaju-losu-stranu-stedljivih-led-ica","status":"publish","type":"post","link":"https:\/\/geek.hr\/znanost\/clanak\/fotografije-iz-svemira-otkrivaju-losu-stranu-stedljivih-led-ica\/","title":{"rendered":"Fotografije iz svemira otkrivaju lo\u0161u stranu \u0161tedljivih LED-ica"},"content":{"rendered":"<p>Fotografije koje svakog dana snimaju astronauti na Me\u0111unarodnoj svemirskoj postaji daju nam fantasti\u010dan pogled na Zemlju, ali one imaju i znanstvenu svrhu. Jedna od njih je da na taj na\u010din mjere svjetlosno zaga\u0111enje, a u posljednje su vrijeme otkrili da LED \u017earulje koje \u0161tede energiju \u010dine svjetlosno zaga\u0111enje jo\u0161 gorim, a promjena je tolika da se vidi iz svemira. <\/p>\n<p>Tako mo\u017eete i na gornjoj fotografiji vidjeti golemu razliku u fotografijama sredi\u0161ta Milana iz 2012. i 2015. godine. Centar grada bio je puno svjetliji uz ve\u0107u koli\u010dinu plavog svjetla. No, brojne svjetske metropole su odlu\u010dile zamijeniti javnu rasvjetu LED-icama, uz koje se ve\u017eu i negativne posljedice.  <\/p>\n<p>Osim \u0161to se dodatno smanjuje vidljivost zvijezda na no\u0107nom nebu, remeti se ekosustav no\u0107nih \u017eivotinja, ali mo\u017ee poremetiti i na\u0161 interni sat, odnosno ciklus spavanja. Naime, ve\u0107a koli\u010dina svjetla mo\u017ee poremetiti proizvodnju melatonina \u0161to mo\u017ee prouzro\u010diti i zdravstvene probleme.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2017\/05\/8733789.jpeg\" alt=\"\" width=\"943\" height=\"533\" class=\"aligncenter size-full wp-image-21040336\" srcset=\"https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2017\/05\/8733789.jpeg 943w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2017\/05\/8733789-300x170.jpeg 300w, https:\/\/geek.hr\/znanost\/wp-content\/uploads\/sites\/14\/2017\/05\/8733789-768x434.jpeg 768w\" sizes=\"(max-width: 943px) 100vw, 943px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kako bi u\u0161tedjeli, brojni gradovi odlu\u010dili su javnu rasvjetu zamijeniti \u0161tedljivijim LED \u017earuljama, no one emitiraju vi\u0161e svjetla i zna\u010dajno mijenjaju no\u0107nu sliku planeta<\/p>\n","protected":false},"author":10022,"featured_media":21040336,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[16372],"tags":[17130,16619],"class_list":["post-21040335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ekologija-i-okolis","tag-led","tag-zarulja"],"modified_by":null,"_links":{"self":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts\/21040335","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/users\/10022"}],"replies":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/comments?post=21040335"}],"version-history":[{"count":0,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/posts\/21040335\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/media\/21040336"}],"wp:attachment":[{"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/media?parent=21040335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/categories?post=21040335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geek.hr\/znanost\/wp-json\/wp\/v2\/tags?post=21040335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}