Article View: sci.physics.relativity
Article #277Re: speed of light independent of source speed question
From: Pentcho Valev
Date: Fri, 02 Sep 2011 06:09
Date: Fri, 02 Sep 2011 06:09
39 lines
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3616 bytes
On Sep 1, 10:57 pm, Tom Roberts <tjroberts...@sbcglobal.net> wrote in sci.physics.relativity: > Note also that theoretical physics is not a mere guessing game in which > arbitrary notions can be combined. The geometric structure of the universe is > highly constrained, and SR is the only local structure that is not already > refuted. This requires that anything moving with speed c relative to one > inertial frame moves with speed c relative to any other frame. (Here c is the > invariant speed of the Lorentz transform, but experiments show that to high > accuracy light travels in vacuum with that speed.) > > Tom Roberts You forget to add something extremely important, Honest Roberts: Even if "light in vacuum does not travel at the invariant speed of the Lorentz transform", Divine Albert's Divine Special Relativity "would be unaffected" and "today's foundations of modern physics would not be threatened": http://groups.google.ca/group/sci.physics.relativity/msg/dc1ebdf49c012de2 Tom Roberts: "If it is ultimately discovered that the photon has a nonzero mass (i.e. light in vacuum does not travel at the invariant speed of the Lorentz transform), SR would be unaffected but both Maxwell's equations and QED would be refuted (or rather, their domains of applicability would be reduced)." http://groups.google.com/group/sci.physics.research/msg/44d3ebf3b94d89ad Tom Roberts: "As I said before, Special Relativity would not be affected by a non-zero photon mass, as Einstein's second postulate is not required in a modern derivation (using group theory one obtains three related theories, two of which are solidly refuted experimentally and the third is SR). So today's foundations of modern physics would not be threatened." Pentcho Valev pvalev@yahoo.com
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X-Google-Thread: 10b271,254c9749875de629,start X-Google-NewGroupId: yes X-Google-Thread: f74ae,254c9749875de629,start X-Google-NewGroupId: yes X-Google-Thread: fa4c1,254c9749875de629,start X-Google-NewGroupId: yes X-Google-Thread: 111645,254c9749875de629,start X-Google-NewGroupId: yes X-Google-Attributes: gid54ac8f410d,gida846ae8c3c,gid2479375fed,gid237b8ad48,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII Path: arc1-ca.pugleaf.net!g2news2.google.com!postnews.google.com!h17g2000vbz.googlegroups.com!not-for-mail From: Pentcho Valev <pvalev@yahoo.com> Newsgroups: sci.physics.relativity,sci.physics,sci.astro,fr.sci.physique,fr.sci.astrophysique Subject: Re: speed of light independent of source speed question Date: Thu, 1 Sep 2011 23:09:37 -0700 (PDT) Organization: http://groups.google.com Lines: 39 Message-ID: <659e91ab-7907-438d-9048-f58f366bcc89@h17g2000vbz.googlegroups.com> References: <08513950-fee4-415f-bf3d-3cc7636b6656@s12g2000yqm.googlegroups.com> <h-adnf0ToNMnbMLT4p2dnAA@giganews.com> NNTP-Posting-Host: 79.100.20.121 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: posting.google.com 1314943777 22322 127.0.0.1 (2 Sep 2011 06:09:37 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Fri, 2 Sep 2011 06:09:37 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: h17g2000vbz.googlegroups.com; posting-host=79.100.20.121; posting-account=Lz-LbgoAAABPDavKeW-eYeobwLHD_cvQ User-Agent: G2/1.0 X-Google-Web-Client: true X-Google-Header-Order: ARLUEHNKC X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; CPNTDF; .NET4.0C),gzip(gfe)