{"id":3179,"date":"2013-02-17T10:58:35","date_gmt":"2013-02-17T09:58:35","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/ajb\/?p=3179"},"modified":"2013-02-17T10:58:35","modified_gmt":"2013-02-17T09:58:35","slug":"take-that-einstein","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/ajb\/2013\/02\/17\/take-that-einstein\/","title":{"rendered":"Take that Einstein&#8230;I mean, take that cranks!"},"content":{"rendered":"<p><img decoding=\"async\" src=\"http:\/\/nicosteyn.files.wordpress.com\/2011\/01\/einstein1-e1295937841431.jpg\" alt=\"einstein\" \/><\/p>\n<blockquote><p>&#8230; all of the available constraints on the validity of the founding principles of SR and GR have so far failed to crack any faults in these century-old theories, which thus remains the standard against all competitors so far.<\/p><\/blockquote>\n<p><em>Orfeu Bertolami and Jorge P\u00e1ramos in<\/em> [1]<\/p>\n<p>I like the above quote. It is rather an inescapable that Einsteinian relativity works well.<\/p>\n<p><strong>Objections to relativity<\/strong><br \/>\nI posted, about a year ago now, on the experimental status of Einsteinian relativity, you can read it <a title=\"blog\" href=\"http:\/\/blogs.scienceforums.net\/ajb\/?p=1288\">here<\/a>.<\/p>\n<p>Whatever the faults with general and special relativity, philosophical or real, today we have no other theory of space, time and gravity that has the experimental success of Einstein&#8217;s theories.<\/p>\n<p>Most of the &#8220;objections&#8221; to special and general relativity stem from not really understanding what the theory is saying, or indeed what a theory really is. <a title=\"blog\" href=\"http:\/\/blogs.scienceforums.net\/ajb\/?p=1117\">Analogies<\/a> and popular science accounts seem to also be the root of a lot of misunderstandings.<\/p>\n<p>Other good references on the experimental status of relativity include [2,3,4].<\/p>\n<p><strong>The failings of general relativity<\/strong><br \/>\nIt is not true that anyone really expects general relativity to be the final say on gravity. The issues as they stand include:<\/p>\n<ul>\n<li>The existence of singularities<\/li>\n<li>The cosmological constant problem<\/li>\n<li>Incompatibility with standard quantisation       methods<\/li>\n<li>Dark energy<\/li>\n<\/ul>\n<p>All these problems only really tell us that general relativity is not a complete theory in the sense that there is physics that it cannot accurately explain.\u00a0 This is not grounds for dismissing general relativity as it is a very accurate model of gravity for a huge range of phenomena.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>References <\/strong><br \/>\n[1] Orfeu Bertolami and Jorge P\u00e1ramos, The experimental status of Special and General Relativity, arXiv:1212.2177v1 [gr-qc]<\/p>\n<p>[2]Orfeu Bertolami, Jorge P\u00e1ramos, and Slava G. Turyshev. General theory of relativity: Will it survive the next decade? <em>In Lasers, Clocks, and Drag-Free: Technologies for Future Exploration in Space and Tests of Gravity<\/em>. Springer Verlag, 2006; gr-qc\/0602016.<\/p>\n<p>[3]Clifford M. Will. The confrontation between general relativity and experiment. <em>Living Reviews in Relativity<\/em>, <strong>9<\/strong>(3), 2006.<\/p>\n<p>[4]Will, Clifford M. (2006). Was Einstein Right? Testing Relativity at the Centenary.<em> Annalen der Physik<\/em> <strong>15<\/strong>: 19\u201333<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8230; all of the available constraints on the validity of the founding principles of SR and GR have so far failed to crack any faults in these century-old theories, which thus remains the standard against all competitors so far. Orfeu Bertolami and Jorge P\u00e1ramos in [1] I like the above quote. It is rather an &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/ajb\/2013\/02\/17\/take-that-einstein\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Take that Einstein&#8230;I mean, take that cranks!<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,5,10],"tags":[],"class_list":["post-3179","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-general","category-physics"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/posts\/3179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/comments?post=3179"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/posts\/3179\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/media?parent=3179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/categories?post=3179"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/ajb\/wp-json\/wp\/v2\/tags?post=3179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}