🚀 go-pugleaf

On 24 Aug, 14:37, "qbit" <q...@quantumworldz.com> wrote in
sci.physics.relativity:
> FACT #1:
>   A photon emitted at the Earth surface (ignoring air-resistance)
>   and going up vertically into the space is SLOWER than a photon
>   going straightforward in vacuum space; ie. slower than c.
>   Reason: attraction by the Earth gravity.
>
> FACT #2:
>   A photon emitted in vacuum space and falling down vertically
>   to the surface of the Earth (ignoring air-resistance) is FASTER
>   than a photon going straightforward in vacuum space; ie. faster than c.
>   Reason: attraction by the Earth gravity.
>
> Ergo, FACT #3:
>   In gravitational fields the real speed of light differs from c.
>   It can be even faster than c! The direction is important, see above.
>   (Remember: c is just a manmade definition of a constant!).
>
> Ergo, FACT #4:
>   Due to the equivalence principle (accelleration/deceleration is like
>   gravity and vice versa), the speed of light in accellerated/decelerated
>   frames differs from c. It can be even faster than c! It depends on
>   accelleration/deceleration and of course on the direction of the emitted light.
>   (Remember: c is just a manmade definition of a constant!).
>
> Ergo, FACT #5:
>   What's valid for photons is of course also valid for anything else!
>   (except that each particle type and macroscopic objects can have
>   their own characteristic MaxSpeed, even beyond c).
>
> Ergo, FACT #6:
>   Everybody who says different is a charlatan.
>   These facts speak for itself. We ordinary people call this kind of reasoning
>   LOGIC, something that seems like from outer space to most Relativists!  :-)

Half of the hypnotists in Einstein criminal cult would agree with you
and may even suggest that the gravitational redshift is a consequence
of the variability of the speed of light:

Tom Roberts wrote in sci.physics.relativity:
> Pentcho Valev wrote:
> > CAN THE SPEED OF LIGHT EXCEED 300000 km/s IN A GRAVITATIONAL FIELD?
> Sure, depending on the physical conditions of the measurement. It can
> also be less than "300000 km/s" (by which I assume you really mean the
> standard value for c). And this can happen even for an accelerated
> observer in a region without any significant gravitation (e.g. in
> Minkowski spacetime).
> Tom Roberts tjroberts@lucent.com

http://www.physlink.com/Education/AskExperts/ae13.cfm "So, it is
absolutely true that the speed of light is _not_ constant in a
gravitational field [which, by the equivalence principle, applies as
well to accelerating (non-inertial) frames of reference].......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."

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."

The other half of the hypnotists in Einstein criminal cult are more
conservative - according to them, in both the presence and absence of
a gravitational field the speed of light is constant and that's it.
They may tell you that the gravitational redshift is a consequence of
time dilation:

http://www.astronomynotes.com/relativity/s4.htm "Prediction: light
escaping from a large mass should lose energy---the wavelength must
increase since the speed of light is constant. Stronger surface
gravity produces a greater increase in the wavelength. This is a
consequence of time dilation. Suppose person A on the massive object
decides to send light of a specific frequency f to person B all of the
time. So every second, f wave crests leave person A. The same wave
crests are received by person B in an interval of time interval of
(1+z) seconds. He receives the waves at a frequency of f/(1+z).
Remember that the speed of light c = (the frequency f)   (the
wavelength L). If the frequency is reduced by (1+z) times, the
wavelength must INcrease by (1+z) times: L_atB = (1+z)   L_atA. In the
doppler effect, this lengthening of the wavelength is called a
redshift. For gravity, the effect is called a GRAVITATIONAL REDSHIFT."

Pentcho Valev