{"id":14085,"date":"2013-09-03T03:00:34","date_gmt":"2013-09-03T08:00:34","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=14085"},"modified":"2013-09-03T03:00:34","modified_gmt":"2013-09-03T08:00:34","slug":"back-to-the-bulletblock-experiment","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/14085","title":{"rendered":"Back to the Bullet\/Block Experiment"},"content":{"rendered":"<p>Veritasium has their response to the bullet\/block I experiment <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/14030\">I linked to and explained<\/a>, and then <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/14041\">explained some more<\/a>. I absolutely love that they were overwhelmed with responses as people tried to figure it out.<\/p>\n<p><object class=\"embed\" width=\"425\" height=\"264\" type=\"application\/x-shockwave-flash\" \ndata=\"http:\/\/www.youtube.com\/v\/BLYoyLcdGPc?fs=1\"><param name=\"wmode\" value=\"transparent\" \/><param name=\"movie\" value=\"http:\/\/www.youtube.com\/v\/BLYoyLcdGPc?fs=1\" \/><em>You need to a flashplayer enabled browser to view this YouTube video<\/em><\/object><\/p>\n<p>One nit: momentum is not always, always, always, always conserved. It&#8217;s conserved when you define the system such that there is no net external force on it. The bullet-block system can be said to conserve momentum during the collision, because it happens quickly and the perturbing impulse is small. But over a longer time, the momentum clearly changes, as the block rises and then falls. One would have to incorporate the earth to have momentum be conserved, but that wouldn&#8217;t help solve the original problem. Defining the system so that one can come to a solution is a large step in the setup to any problem.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Veritasium has their response to the bullet\/block I experiment I linked to and explained, and then explained some more. I absolutely love that they were overwhelmed with responses as people tried to figure it out. You need to a flashplayer &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/14085\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39,63],"tags":[],"class_list":["post-14085","post","type-post","status-publish","format-standard","hentry","category-physics","category-video"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/14085","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/comments?post=14085"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/14085\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=14085"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=14085"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=14085"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}