{"id":9701,"date":"2011-09-06T03:00:38","date_gmt":"2011-09-06T08:00:38","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=9701"},"modified":"2011-09-06T03:00:38","modified_gmt":"2011-09-06T08:00:38","slug":"only-his-hairdresser-knows-for-sure","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/9701","title":{"rendered":"Only His Hairdresser Knows for Sure"},"content":{"rendered":"<p><a href=\"http:\/\/physicsworld.com\/cws\/article\/news\/46941\">Did Einstein discover E = mc^2?<\/a><\/p>\n<p>One thing that bothers me about the &#8220;somebody had mc^2 and only had the proportionality constant wrong&#8221; arguments is that it ignores one very important point:  whatever you come up with, the units have to be that of energy.  So it&#8217;s not like the <a href=\"http:\/\/2.bp.blogspot.com\/_9bhJzYFYO3k\/SPO4mO_AshI\/AAAAAAAAAFA\/p96vscQB6mg\/s1600-h\/Einstein-Gary-Simmons.png\">Far Side cartoon<\/a> where Einstein has written E=mc^3, E=mc^7 and various other powers and the cleaning lady says &#8220;Everything&#8217;s squared away.  Yessir, squaaaaaared away!&#8221; (and Albert has a wonderful look on his face).  Funny, for a cartoon, but in reality you need a speed squared term to go along with mass in order to get units of energy.  E=mc^7 doesn&#8217;t have units of energy.  E=mc^2 does.  So, really, showing what the proportionality factor is is really the majority of the battle.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Did Einstein discover E = mc^2? One thing that bothers me about the &#8220;somebody had mc^2 and only had the proportionality constant wrong&#8221; arguments is that it ignores one very important point: whatever you come up with, the units have &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/9701\">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":[11,21,39],"tags":[],"class_list":["post-9701","post","type-post","status-publish","format-standard","hentry","category-cartoon","category-history","category-physics"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/9701","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=9701"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/9701\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=9701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=9701"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=9701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}