{"id":11896,"date":"2012-06-17T05:27:06","date_gmt":"2012-06-17T10:27:06","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=11896"},"modified":"2012-06-17T05:27:06","modified_gmt":"2012-06-17T10:27:06","slug":"more-than-you-probably-wanted-to-know-about-dominos","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/11896","title":{"rendered":"More Than You Probably Wanted to Know About Dominos"},"content":{"rendered":"<p><object class=\"embed\" width=\"425\" height=\"264\" type=\"application\/x-shockwave-flash\" \ndata=\"http:\/\/www.youtube.com\/v\/y97rBdSYbkg?fs=1\"><param name=\"wmode\" value=\"transparent\" \/><param name=\"movie\" value=\"http:\/\/www.youtube.com\/v\/y97rBdSYbkg?fs=1\" \/><em>You need to a flashplayer enabled browser to view this YouTube video<\/em><\/object><\/p>\n<blockquote><p>A domino can knock over another domino about 50% larger than itself. A chain of dominos of increasing size makes a kind of mechanical chain reaction that starts with a tiny push and knocks down an impressively large domino.<\/p>\n<p>Original idea by Lorne Whitehead, American Journal of Physics, Vol. 51, page 182 (1983).<\/p>\n<p>See <a href=\"http:\/\/arxiv.org\/abs\/physics\/0401018\">http:\/\/arxiv.org\/abs\/physics\/0401018<\/a> for a sophisticated discussion of the physics.<\/p><\/blockquote>\n<p>One thing not discussed in the video (but the paper treats in gory detail) is that it&#8217;s not just an energy argument \u2014 you also must consider the collision between the dominos.  It should be pretty obvious that the dominos can&#8217;t be separated by more than their height, else they won&#8217;t collide, but that they also need to hit the next high enough in order to exert a sufficient torque to topple it.  Which contributes to this limit on the size of the next one.    <\/p>\n","protected":false},"excerpt":{"rendered":"<p>You need to a flashplayer enabled browser to view this YouTube video A domino can knock over another domino about 50% larger than itself. A chain of dominos of increasing size makes a kind of mechanical chain reaction that starts &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/11896\">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-11896","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\/11896","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=11896"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/11896\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=11896"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=11896"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=11896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}