Re: A second "big bang"

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Article #16010

#16010

From: Joseph Lazio
Date: Sat, 15 Feb 2003 14:03

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>>>>> "DAT" == Dale A Trynor <dalet@nbnet.nb.ca> writes:

DAT> Joseph Lazio wrote:
>> >>>>> "ITH" == Indestructible Truth Holder <nospam@mindspring.com>
>> writes:

ITH> Why does BBT assume the speed of light is and always was constant
ITH> and independent of gravity?
>>  Because observations, particularly many in the solar system,
>> indicate that the speed of light is independent of the depth of the
>> gravitational potential.  Can you cite any observations that
>> suggest otherwise?

DAT> Shapiro Effect.

You'll have to be more specific.  I just skimmed the discussion of the
Shapiro delay in MTW's _Gravitation_.  The magnitude of the Shapiro
delay depends upon the line of sight through the gravitational
potential of the Sun (which, experimentally, means it depends upon the
orbits of the planets used in the experiment).  However, nowhere is
there any mention of a change in the speed of light.  Indeed, the
speed of light in the derivation is conspicuously constant.

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From: Joseph Lazio <jlazio@adams.patriot.net>
Newsgroups: sci.physics,sci.astro,sci.physics.relativity,fr.sci.astrophysique
Subject: Re: A second "big bang"
Date: 15 Feb 2003 09:03:25 -0500
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