http://www.perimeterinstitute.ca/Out..._Slow_Time?/1/
Perimeter Institute: "One may imagine the photon losing energy as it
climbs against the Earth’s gravitational field much like a rock thrown
upward loses kinetic energy as it slows down, the main difference
being that the photon does not slow down; it always moves at the speed
of light."

http://math.ucr.edu/home/baez/physic..._of_light.html
"Einstein went on to discover a more general theory of relativity
which explained gravity in terms of curved spacetime, and he talked
about the speed of light changing in this new theory. In the 1920 book
"Relativity: the special and general theory" he wrote: ". . .
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
[. . .] 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." Since Einstein talks of velocity (a vector
quantity: speed with direction) rather than speed alone, it is not
clear that he meant the speed will change, but the reference to
special relativity suggests that he did mean so."

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."

Einstein zombie world:

"YES WE ALL BELIEVE IN RELATIVITY, RELATIVITY, RELATIVITY"
http://www.youtube.com/watch?v=5PkLLXhONvQ


"DIVINE EINSTEIN"
http://www.bnl.gov/community/Tours/E.../Einsteine.jpg
http://www.haverford.edu/physics-astro/songs/divine.htm
http://www.physicstoday.org/vol-58/i...e_einstein.mp3

Pentcho Valev
pvalev***yahoo.com