Re: B SR-cult fraud and corruption
From: RP (no_mail_no_spam_at_yahoo.com)
Date: 10/05/04
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Date: Tue, 05 Oct 2004 12:16:55 -0500
eleaticus wrote:
> "shevek" <shevek4@yahoo.com> wrote in message
> news:c2ee115b.0410041404.11a3df65@posting.google.com...
>
> http://groups.google.com/groups?q=Tom+Roberts+a+physicists+derivation+of+relativity&hl=en&lr=&ie=UTF-8&group=sci.physics.relativity&selm=54jfst%24glp%40ssbunews.ih.lucent.com&rnum=8
>
>
>>Thanks Bill-
>
>
>> That is a good one!
>
>
> Very interesting.
>
>
>> It looks like the protocol of choosing light speed as constant is
>>hidden in his "second postulate", that of isotropy and homogeneity of
>>space.
>
>
>>"The transformation must have the same mathematical form
>>for a boost in any (spatial) direction. "
>
>
> That doesn't impose the SRian c versus c+v.
>
> Nor is the Relativity Postulate necessary apparently.
>
>
>> I also learned from Tom that you even without this postulate, and
>>the assumption of a "Lorentz Ether" (i.e. clocks are slowed if at
>>motion in said ether), the Lorentz transformations and the rest of SR
>>again fall out.
>
>
> That sounds quite likely.
It isn't likely at all. It's easy enough to state that SR will fall out
of LCAT, it's quite another to prove it. It's much easier to prove that
the statement is false: Since SR takes homogeneity and isotropy as a
premises, there is already a contradiction between the two approaches,
since Lorentz assumes an absolute aether, and thus takes as premises
neither homogeneity nor isotropy.
The LCAT transform (K to K') (in difference form) is
delta x' = (delta_x - v delta_t) gamma
delta_y' = delta_y
delta_z' = delta_z
delta t' = delta_t / gamma
The inverse transformation (K' to K):
delta_x = (delta_x' - v gamma^2 delta_t') / gamma
delta_y = delta_y'
delta_z = delta_z'
delta_t = (delta_t') gamma
This transform isn't commutative. v is explicitly the velocity of K'
wrt the ether (taken wrt frame K), and
{delta_x,delta_y,delata_z,delta_t} are taken wrt the aether (frame K).
Light speed is not constant wrt the moving observer, it obeys Galilean
velocity addition.
Richard Perry
>
>
>> Cheers -
>
>
>
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