{"id":75103,"date":"2012-02-08T13:41:29","date_gmt":"2012-02-08T12:41:29","guid":{"rendered":"http:\/\/www.pcnen.com\/portal\/?p=75103"},"modified":"2012-02-08T13:41:29","modified_gmt":"2012-02-08T12:41:29","slug":"tajna-paukove-mreze","status":"publish","type":"post","link":"https:\/\/www.pcnen.com\/portal\/2012\/02\/08\/tajna-paukove-mreze\/","title":{"rendered":"Tajna paukove mre\u017ee"},"content":{"rendered":"<p><a href=\"http:\/\/www.pcnen.com\/portal\/wp-content\/uploads\/2012\/02\/paukova-mreza.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-thumbnail wp-image-75104\" title=\"paukova mreza\" src=\"http:\/\/www.pcnen.com\/portal\/wp-content\/uploads\/2012\/02\/paukova-mreza-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a>Paukove mre\u017ee su zaista prirodno \u010dudo. Nau\u010dnici prou\u010davaju izdr\u017eljivost tih mre\u017ea i njihovu otpornost na uragane i napade grabe\u017eljivaca. Ne radi se samo o snazi mre\u017ee, nego i o pametnom dizajnu.<\/p>\n<p>Nau\u010dnici sa Tehnolo\u0161kog instituta u Massachusettsu su rekli da bi dizajn paukove mre\u017ee mogao biti iskori\u0161ten za izgradnju sigurnijih zgrada ili \u010dak nesalomivih materijala.<\/p>\n<p>Za izradu mre\u017ee pauk koristi mnogo energije, ona je dizajnirana tako da ve\u0107e popravke nisu potrebne. Nau\u010dnici su otkrili da mre\u017ea mo\u017ee sama od sebe da se opu\u0161ta i postaje \u010dvr\u0161\u0107a u zavisnosti od tereta koji se nalazi na njoj.<\/p>\n<p>U testu sa tri materijala paukova mre\u017ea se pokazala \u0161est puta otpornijom na o\u0161te\u0107enja kada na njih padnu gran\u010dice ili u slu\u010dajevima kada pu\u0161u sna\u017eni vjetrovi.<\/p>\n<p>Kada teret dospije na mre\u017eu, pukne samo jedan manji dio, koji pauk brzo i lako popravi.<\/p>\n<p>Uklanjanjem 10 posto niti koje \u010dine mre\u017eu ona ne postaje slabija, nego \u010dvr\u0161\u0107a za 10 posto.<\/p>\n<p>&#8220;Stvarna snaga mre\u017ee nije u njenim koncima nego u promjeni njenih mehani\u010dkih svojstava, \u0161to bi se moglo iskoristiti na razli\u010ditim poljima&#8221;, izjavio je autor istra\u017eivanja Markus Buehler.<\/p>\n<p>Nau\u010dnici su ve\u0107 pokazali da je paukova mre\u017ea pet puta ja\u010da od \u010delika ukoliko se radi o istoj te\u017eini.<\/p>\n<p>Daily Mail\/RSE<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Otporne na uragan, primer za dizajn izdr\u017eljivijih zgrada<\/p>\n","protected":false},"author":1,"featured_media":0,"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":[8],"tags":[],"class_list":["post-75103","post","type-post","status-publish","format-standard","hentry","category-svastara"],"_links":{"self":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/75103","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=75103"}],"version-history":[{"count":0,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/75103\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media?parent=75103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/categories?post=75103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/tags?post=75103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}