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Pound-Rebka revisited



 
 
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  #1  
Old August 27th 07, 04:33 PM posted to sci.physics.relativity,sci.physics,sci.astro,fr.sci.physique,fr.sci.astrophysique
Pentcho Valev
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Posts: 8,078
Default Pound-Rebka revisited

On 27 Aug, 17:18, Dono wrote in
sci.physics.relativity:
Looking at a very good paper on Pound-Rebka :

http://luth2.obspm.fr/IHP06/lectures...avRedshift.pdf

one question comes to mind: why isn't the time dilation between the
top and the bottom of the tower taken into calculation? The speeds of
the top and bottom of the tower are unequal:

omega*R at the bottom vs. omega*(R+H) at the top. So, following the
reasoning used by Ashby in his GPS paper (where h is much larger, of
course) the authors should have calculated the effect of time
dilation. What would that effect have amounted to?


There is no gravitational time dilation. The speed of light varies
with the gravitational potential and therefore the frequency also
varies, in accordance with the formula

frequency = (speed of light)/(wavelength)

Many hypnotists in Einstein criminal cult have confirmed this; perhaps
the clearest text is this one:

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


  #2  
Old August 27th 07, 04:53 PM posted to sci.physics.relativity,sci.physics,sci.astro,fr.sci.physique,fr.sci.astrophysique
Androcles[_2_]
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Posts: 1,040
Default Pound-Rebka revisited


"Pentcho Valev" wrote in message
oups.com...
: On 27 Aug, 17:18, Dono wrote in
: sci.physics.relativity:
: Looking at a very good paper on Pound-Rebka :
:
: http://luth2.obspm.fr/IHP06/lectures...avRedshift.pdf
:
: one question comes to mind: why isn't the time dilation between the
: top and the bottom of the tower taken into calculation? The speeds of
: the top and bottom of the tower are unequal:

Only one?
The path was in Mylar enclosed helium, sound waves
would transmit along it from the speaker to the detector.
Why wasn't a control used in the horizontal direction?



 




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