Re: geometry produce work


Tom Roberts wrote:
dudle wrote:
if gravity is geometry, how come that geometry produce work?

Because for the cases you are thinking of you project onto non-inertial
coordinates but consider them to be inertial (e.g. the usual coordinates
at rest relative to the surface of the earth in Newtonian mechanics when
analyzing a dropped stone and the "work" done on it by gravity).

And the stone accelerates doesn't it Roberts Roberts. How about the
photon? Sometimes you suggest the photon also accelerates:

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@xxxxxxxxxx

What you would never accept Roberts Roberts is that the photon
accelarates in accordance with Einstein's 1911 equation c'=c(1+V/c^2).
And you say this equation is wrong but would never give the correct
equation. Because you are just as honest as Divine Albert aren't you
Roberts Roberts.

Pentcho Valev

.

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