{"id":120,"date":"2005-04-04T20:46:00","date_gmt":"2005-04-05T03:46:00","guid":{"rendered":"http:\/\/www.preposterousuniverse.com\/blog\/time-saving-tips-for-understanding-einstein\/"},"modified":"2005-04-04T20:46:00","modified_gmt":"2005-04-05T03:46:00","slug":"time-saving-tips-for-understanding-einstein","status":"publish","type":"post","link":"https:\/\/preposterousuniverse.com\/blog\/2005\/04\/04\/time-saving-tips-for-understanding-einstein\/","title":{"rendered":"Time-saving tips for understanding Einstein"},"content":{"rendered":"<p><a href=\"http:\/\/pharyngula.org\/\">PZ Myers<\/a>, presumably exhausted from smacking down the same tired arguments from creationists (I know I would be), has tossed one to me. It&#8217;s against Einstein instead of Darwin, so it&#8217;s my bailiwick, I have to admit. But this little piece of foolishness &#8212; a brief piece against special relativity on a website grammatically entitled <a href=\"http:\/\/www.idthefuture.com\/index.php?p=179&#038;more=1&amp;amp;amp;amp;c=1&#038;tb=1&amp;pb=1\">Intelligent Design the Future<\/a> &#8212; is so thoroughly clueless that&#8217;s it&#8217;s not even mildly diverting. If these people weren&#8217;t taking over the country, they wouldn&#8217;t even rise to the level of being amusing.<\/p>\n<p>So, instead of going through the nonsense point-by-point, I thought it would be more useful for me to offer a little set of guidelines to the discerning reader: <span style=\"font-weight: bold;\">Signs That You Might Not Be Reading A Sensible Critique of Relativity<\/span>.<\/p>\n<ol>\n<li>Critic seems to get understanding of Einstein from an article in the <a href=\"http:\/\/www.newyorker.com\/critics\/atlarge\/\">New Yorker<\/a>, rather than from Einstein (or a stylish <a href=\"http:\/\/www.amazon.com\/exec\/obidos\/ASIN\/0805387323\/lecturenotesonge\/102-1993449-7825722\">textbook<\/a>).<\/li>\n<li>Critic suggests that Einstein &#8220;did away with change,&#8221; without explaining what that means.<\/li>\n<li>Critic defends notion of simultaneity by repeated reference to stuff going on &#8220;right now.&#8221;<\/li>\n<li>Critic claims that special relativity did away with Newtonian absolute time, but that it reappeared in general relativity.<\/li>\n<li>That &#8220;right now&#8221; thing &#8212; okay, I just can&#8217;t get over that.<\/li>\n<li>Critic wouldn&#8217;t recognize the Riemann tensor if it bit him on the nose. (Not explicitly stated in the article, but the signs are clear.)<\/li>\n<\/ol>\n<p> Each sign, as you may guess, is displayed prominently over at <a href=\"http:\/\/www.idthefuture.com\/index.php?p=179&#038;more=1&amp;amp;amp;amp;c=1&#038;tb=1&amp;pb=1\">ID the F<\/a>. Sadly, the list is far from exhaustive; there are numerous ways to demonstrate cluelessness about modern physics that weren&#8217;t on display in this particular article. Perhaps we could keep a running tally?<\/p>\n<p>Here&#8217;s the truth: Einstein proposed that the amount of time elapsed between two spacetime events depends (in a very definite way) on the path taken between those events. It is not simply a universal constant, as it would be in Newtonian physics. So the notion of &#8220;simultaneity&#8221; for distant events is just a useful approximation, valid when everyone is traveling slowly compared to the speed of light. And you know what? Einstein was right. It&#8217;s been verified over and over again, from the lifetimes of rapidly-moving subatomic particles to the time kept by atomic clocks moving in airplanes. Deal with it.<\/p>\n<p>And here&#8217;s a little request for anyone else who wants to point out flaws in Einstein. Whatever else you might think, Einstein was a smart cookie. Nothing he said was sacred (my first published paper proposed a theory that violated some of Einstein&#8217;s ideas, as have several of my subsequent papers), but you should at least <span style=\"font-style: italic;\">understand<\/span> what he said before you claim to improve on it.  So take a gander at the <a href=\"http:\/\/pancake.uchicago.edu\/~carroll\/364\/\">problem sets for my course in general relativity<\/a>, and have a go. If you get an average of over 50% on all the sets (as all of the students in my class did), I&#8217;ll give your ideas a respectful hearing. Otherwise, you should go back and hit the books if you expect anyone to take you seriously.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PZ Myers, presumably exhausted from smacking down the same tired arguments from creationists (I know I would be), has tossed one to me. It&#8217;s against Einstein instead of Darwin, so it&#8217;s my bailiwick, I have to admit. But this little piece of foolishness &#8212; a brief piece against special relativity on a website grammatically entitled [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-120","post","type-post","status-publish","format-standard","hentry","category-miscellany"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/posts\/120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/comments?post=120"}],"version-history":[{"count":0,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/posts\/120\/revisions"}],"wp:attachment":[{"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/media?parent=120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/categories?post=120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/preposterousuniverse.com\/blog\/wp-json\/wp\/v2\/tags?post=120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}