{"id":19399,"date":"2018-12-30T18:25:01","date_gmt":"2018-12-30T17:25:01","guid":{"rendered":"http:\/\/blog.netspark.de\/?p=19399"},"modified":"2018-12-30T17:26:53","modified_gmt":"2018-12-30T16:26:53","slug":"how-does-glass-visibly-crack","status":"publish","type":"post","link":"https:\/\/blog.netspark.de\/?p=19399","title":{"rendered":"How does glass visibly crack?"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-Post-Thumb wp-image-8665\" src=\"https:\/\/blog.netspark.de\/wp-content\/uploads\/2018\/10\/model-of-atom-with-chemistry-and-science-icon-education-concept-100217416-64x64.jpg\" alt=\"\" width=\"64\" height=\"64\" srcset=\"https:\/\/blog.netspark.de\/wp-content\/uploads\/2018\/10\/model-of-atom-with-chemistry-and-science-icon-education-concept-100217416-64x64.jpg 64w, https:\/\/blog.netspark.de\/wp-content\/uploads\/2018\/10\/model-of-atom-with-chemistry-and-science-icon-education-concept-100217416.jpg 148w\" sizes=\"auto, (max-width: 64px) 100vw, 64px\" \/>Well, when glass shatters, you see the cracks afterwards. But how<br \/>\ndos the glass actually break? Are the cracks expanding in given<br \/>\ntime or are they instantly there? A question, The team of the<br \/>\nAction Lab was trying to find out. The following video is the result.<\/p>\n<p><!--more-->For quite some time there were not fast enough cameras available to record speeds faster than 300mph. Or better said, cameras were not able to record faster than 10&#8217;000fps.<\/p>\n<p>But now there&#8217;s a company in Japan that has created a camera that can record up to 10&#8217;000&#8217;000fps (yes, you&#8217;ve read right! 10 million frames per second!). That means, the camera is capable of recording clips where each picture is of 100ns duration (100 nano seconds). That&#8217;s really fast and since glass has another density where sound is advancing at Mach4, this camera might be able to make the cracks advancing visible.<\/p>\n<p>Enjoy the show!<\/p>\n<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-19399-1\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/blog.netspark.de\/wp-content\/uploads\/2018\/12\/High-Speed-Glass-Shattering.mp4?_=1\" \/><a href=\"https:\/\/blog.netspark.de\/wp-content\/uploads\/2018\/12\/High-Speed-Glass-Shattering.mp4\">https:\/\/blog.netspark.de\/wp-content\/uploads\/2018\/12\/High-Speed-Glass-Shattering.mp4<\/a><\/video><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Well, when glass shatters, you see the cracks afterwards. But how dos the glass actually break? Are the cracks expanding in given time or are they instantly there? A question, The team of the Action Lab was trying to find out. The following video is the result.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4,434,3240,150],"tags":[559,1565,3482,3484,867,3483],"class_list":["post-19399","post","type-post","status-publish","format-standard","hentry","category-curiosities","category-nature-2","category-science","category-video","tag-glass","tag-high-speed","tag-physics","tag-shattering","tag-sound","tag-video-capture"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.netspark.de\/index.php?rest_route=\/wp\/v2\/posts\/19399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.netspark.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.netspark.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.netspark.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.netspark.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19399"}],"version-history":[{"count":0,"href":"https:\/\/blog.netspark.de\/index.php?rest_route=\/wp\/v2\/posts\/19399\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.netspark.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.netspark.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.netspark.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}