Article View: sci.physics.relativity
Article #5824Re: Fermat's principle and curved spacetime
From: NoEinstein
Date: Fri, 18 Jan 2008 18:12
Date: Fri, 18 Jan 2008 18:12
90 lines
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6652 bytes
On Jan 18, 2:03 am, Pentcho Valev <pva...@yahoo.com> wrote: > ATTENTION: Those of you who are interested in discussing the various moot points of Einstein's theories, or the off-shoots of his "reasoning", are invited to view the various posts of -- NoEinstein -- who has conclusively disproved Einstein both mathematically and experimentally. Access may be gained via the following NoEinstein post, and via the attached additional links following such. Those of you wishing to reply to any point of science, are urged to do so in the most recent post(s), because the earlier ones, though still quite apt as to the science, are no longer being checked for comments. I hope that you will find my links both interesting and educational! -- NoEinstein -- Matter from Thin Air http://groups.google.com/group/sci.physics/browse_thread/thread/ee4fe3946dfc0c31/1f1872476bc6ca90?hl=en#1f1872476bc6ca90 Curing Einstein's Disease http://groups.google.com/group/sci.physics/browse_thread/thread/4ff9e866e0d87562/f5f848ad8aba67da?hl=en#f5f848ad8aba67da > > On Jan 18, 6:37 am, Tom Roberts <tjroberts...@sbcglobal.net> wrote in > sci.physics.relativity: > > > Albertito wrote: > > > Then, why did Einstein propose a local speed of light as > > > c'= c(1 + V/c2)? > > > Because he was struggling to find General Relativity, but had not yet > > figured out all the details. His intermediate formula is approximate, > > but not correct. When he proposed it he did not fully understand the > > difference between local and non-local phenomena. > > > Tom Roberts > > Roberts Roberts, Einstein's 1911 equation c'=c(1+V/c^2) is consistent > with the gravitational redshift factor 1+V/c^2 confirmed > experimentally by Pound and Rebka. In other words Roberts Roberts, the > equation c'=c(1+V/c^2) is CORRECT, NOT APPROXIMATE: any different > equation (that may seem correct to you) would be inconsistent with the > redshift factor. For that reason Roberts Roberts superior brothers in > Einstein criminal cult have always been teaching that the speed of > light varies with the gravitational potential, in accordance with > Einstein's 1911 equation c'=c(1+V/c^2): > > http://www.physlink.com/Education/AskExperts/ae13.cfm > "So, it is absolutely true that the speed of light is _not_ constant > in a gravitational field [which, by the equivalence principle, applies > as well to accelerating (non-inertial) frames of reference]. If this > were not so, there would be no bending of light by the gravitational > field of stars....Indeed, this is exactly how Einstein did the > calculation in: 'On the Influence of Gravitation on the Propagation of > Light,' Annalen der Physik, 35, 1911. which predated the full formal > development of general relativity by about four years. This paper is > widely available in English. You can find a copy beginning on page 99 > of the Dover book 'The Principle of Relativity.' You will find in > section 3 of that paper, Einstein's derivation of the (variable) speed > of light in a gravitational potential, eqn (3). The result is, > c' = c0 ( 1 + V / c^2 ) > where V is the gravitational potential relative to the point where the > speed of light c0 is measured." > > http://www.blazelabs.com/f-g-gcont.asp"The first confirmation of a > long range variation in the speed of light travelling in space came in > 1964. Irwin Shapiro, it seems, was the first to make use of a > previously forgotten facet of general relativity theory -- that the > speed of light is reduced when it passes through a gravitational > field....Faced with this evidence, Einstein stated:"In the second > place our result shows that, according to the general theory of > relativity, the law of the constancy of the velocity of light in > vacuo, which constitutes one of the two fundamental assumptions in the > special theory of relativity and to which we have already frequently > referred, cannot claim any unlimited validity. A curvature of rays of > light can only take place when the velocity of propagation of light > varies with position."......Today we find that since the Special > Theory of Relativity unfortunately became part of the so called > mainstream science, it is considered a sacrilege to even suggest that > the speed of light be anything other than a constant. This is somewhat > surprising since even Einstein himself suggested in a paper "On the > Influence of Gravitation on the Propagation of Light," Annalen der > Physik, 35, 1911, that the speed of light might vary with the > gravitational potential. Indeed, the variation of the speed of light > in a vacuum or space is explicitly shown in Einstein's calculation for > the angle at which light should bend upon the influence of gravity. > One can find his calculation in his paper. The result is c'=c(1+V/c^2) > where V is the gravitational potential relative to the point where the > measurement is taken. 1+V/c^2 is also known as the GRAVITATIONAL > REDSHIFT FACTOR." > > Pentcho Valev > pva...@yahoo.com
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X-Google-Thread: 10f545,e60ad8b8bd890c74 X-Google-Thread: 10b271,4fd262761489fde X-Google-Thread: f74ae,4fd262761489fde X-Google-Thread: fa4c1,4fd262761489fde X-Google-Thread: 1139f8,4fd262761489fde X-Google-Attributes: gid10f545,gid10b271,gidf74ae,gidfa4c1,gid1139f8,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!postnews.google.com!d4g2000prg.googlegroups.com!not-for-mail From: NoEinstein <noeinstein@bellsouth.net> Newsgroups: sci.physics.relativity, sci.physics, sci.astro, fr.sci.physique, fr.sci.maths Subject: Re: Fermat's principle and curved spacetime Date: Fri, 18 Jan 2008 10:12:58 -0800 (PST) Organization: http://groups.google.com Lines: 91 Message-ID: <b58a7fd6-bba0-4465-b1de-f17049ff644c@d4g2000prg.googlegroups.com> References: <acc87498-7d1a-4bf8-b205-e24b29b6f04b@s8g2000prg.googlegroups.com> <v2Wjj.38861$lD6.27743@newssvr27.news.prodigy.net> <f45cdd6a-6cba-49f6-aef9-089ac65e4d1b@k2g2000hse.googlegroups.com> NNTP-Posting-Host: 74.226.208.137 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Trace: posting.google.com 1200679978 15612 127.0.0.1 (18 Jan 2008 18:12:58 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Fri, 18 Jan 2008 18:12:58 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: d4g2000prg.googlegroups.com; posting-host=74.226.208.137; posting-account=8k9z_QoAAABfJ6zct3wDB2k3FKfRerU2 User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1),gzip(gfe),gzip(gfe)