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Article #1400Re: HUMILIATED EINSTEINIANS
From: Pentcho Valev
Date: Wed, 11 Feb 2009 07:33
Date: Wed, 11 Feb 2009 07:33
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4790 bytes
Humiliated Einsteinians don't believe that a long train can be short (if trapped inside a short tunnel), that a 80m long pole can be 40m long (if trapped inside a 40m long barn), and that a bug can be both dead and alive, but they are forced to teach all those absurd corollaries of Einstein's 1905 false light postulate (for career and money): http://www.youtube.com/watch?v=VSRIyDfo_mY&mode=related&search= http://www.math.ucr.edu/home/baez/physics/Relativity/SR/barn_pole.html "These are the props. You own a barn, 40m long, with automatic doors at either end, that can be opened and closed simultaneously by a switch. You also have a pole, 80m long, which of course won't fit in the barn....So, as the pole passes through the barn, there is an instant when it is completely within the barn. At that instant, you close both doors simultaneously, with your switch. Of course, you open them again pretty quickly, but at least momentarily you had the contracted pole shut up in your barn." http://hyperphysics.phy-astr.gsu.edu/Hbase/Relativ/bugrivet.html Sometimes the humiliation is unbearable and Harvey Brown, the President of the British Society for the Philosophy of Science, gets even more confused: it seems to him that the absurdities are no more corollaries of Einstein's 1905 false light postulate; rather, Einstein's 1905 false light postulate is a corollary of the absurdities: http://philsci-archive.pitt.edu/archive/00001661/01/Minkowski.pdf Harvey R. Brown and Oliver Pooley: "One then appeals to the relativity principle againβthe principle entails that these coordinated contractions and dilations must be exactly the same function of velocity for each inertial frame, along with the principle of spatial isotropy, in order to narrow down the deformations to just those encoded in the Lorentz transformations. What has been shown is that rods and clocks must behave in quite particular ways in order for the two postulates to be true together. But this hardly amounts to an explanation of such behaviour. Rather things go the other way around. It is because rods and clocks behave as they do, in a way that is consistent with the relativity principle, that light is measured to have the same speed in each inertial frame." http://ndpr.nd.edu/review.cfm?id=6603 "Harvey Brown thinks that most philosophers are confused about relativity. Most centrally, he thinks they're confused about the relativistic effects of length contraction and time dilation.....According to (what Brown alleges is) the dominant view among substantivalists, the geometrical structure of Minkowski spacetime plays some role in explaining why moving rods shrink and why moving clocks run slow. Brown rejects this view. He asserts, instead, that in order to explain why moving rods shrink we must appeal to the dynamical laws governing the forces that hold the parts of the rod together. The geometry of Minkowski spacetime plays no role in this explanation.....He thinks that good answers to these questions say something about the way in which the forces holding the parts of the rod together depend on velocity of the rod. Only that is a story of what causes the particles to get closer together, and so what causes the rod to shrink." Pentcho Valev pvalev@yahoo.com
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X-Google-Thread: 111645,14862b05e4a6ee8d X-Google-Thread: f74ae,14862b05e4a6ee8d X-Google-Attributes: gid111645,gidf74ae,domainid0,public,usenet X-Google-Language: ENGLISH,CP1252 Path: arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!h20g2000yqn.googlegroups.com!not-for-mail From: Pentcho Valev <pvalev@yahoo.com> Newsgroups: sci.physics.relativity,sci.physics,fr.sci.physique,fr.sci.astrophysique,sci.astro Subject: Re: HUMILIATED EINSTEINIANS Date: Tue, 10 Feb 2009 23:33:43 -0800 (PST) Organization: http://groups.google.com Lines: 61 Message-ID: <50a475db-bd0c-4b8d-b8e4-2078f2838d2f@h20g2000yqn.googlegroups.com> References: <3c808836-5273-4cb8-8d3f-14cd4a6a5936@f3g2000yqf.googlegroups.com> <142d5e02-9eb6-47be-86d3-ce24dde80f3d@p13g2000yqc.googlegroups.com> <00016ca9-e26c-4e61-971f-60cf343acaa7@x38g2000yqj.googlegroups.com> NNTP-Posting-Host: 79.100.231.41 Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-Trace: posting.google.com 1234337623 32690 127.0.0.1 (11 Feb 2009 07:33:43 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Wed, 11 Feb 2009 07:33:43 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: h20g2000yqn.googlegroups.com; posting-host=79.100.231.41; posting-account=Lz-LbgoAAABPDavKeW-eYeobwLHD_cvQ User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1),gzip(gfe),gzip(gfe)