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Article #584

Re: VARIABLE SPEED OF LIGHT: FUNDAMENTAL THEOREMS

#584
From: bill
Date: Thu, 29 Apr 2010 07:25
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On Apr 27, 2:28 pm, Pentcho Valev <pva...@yahoo.com> wrote:
> http://www.physlink.com/Education/AskExperts/ae13.cfm

> 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."
>
> Pentcho Valev
> pva...@yahoo.com

I have regrettably misplaced my copy of Muller's book 'The Principle
of Relativity'(?) wherein he also provided an equation which allowed
the reader to determine the various speeds of a beam of light at
different altitudes.

Could his equation have been identical to the above? I assume so.
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From: bill <cosmosco@optusnet.com.au>
Newsgroups: sci.physics.relativity,sci.physics,fr.sci.physique,fr.sci.astrophysique
Subject: Re: VARIABLE SPEED OF LIGHT: FUNDAMENTAL THEOREMS
Date: Thu, 29 Apr 2010 00:25:49 -0700 (PDT)
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