Re: PROOF: Schwarzschild Radius r=2*G*M/c^2 is wrong

On Sep 6, 5:17 pm, meda <a...@xxxxxxxxxxx> wrote:
"JanPB" <film...@xxxxxxxxx> wrote



On Sep 6, 6:06 am, meda <a...@xxxxxxxxxxx> wrote:

PROOF: Schwarzschild Radius r=2*G*M/c^2 is wrong

Here's the proof that the Schwarzschild Radius is wrong.

The formula for time dilation in respect to free space,
according to Relativity Theory (RT), and especially
for General Relativity (GR), is [1]:
factor = 1 - GravPotential / c^2
where
GravPotential = G*M/r

No, this is not what general relativity actually says for the very
simple reason that the notion of gravitational potential doesn't even
exist there. (Grav. potential is used only in approximations to
general relativity - these approximations can be used in certain cases
to simplify the calculations.)

Hence your entire argument stops dead right here. You are using a
Hollywood version of relativity, so you are getting a Hollywood
result.

We both know that I'm right, and you are wrong.

I can prove I'm right.

Above the Schwarzschild Radius was proven wrong,
and everything related to it.

Your proof is incorrect.

If Mr. Schwarzschild back in 1916 used GR

It was late 1915 actually.

to get this
solution, and yes he indeed did, then he undoubtfully used
a wrong tool which gave him this wrong formula.

No, he just solved the Einstein equation using a particular coordinate
system. One could use slightly more elegant coordinates but this is
all gravy - point is Schwarzschild got it right. This claim, being a
claim about a mathematical argument, can be verified.

That simple and logical is the matter.

But you can prove what you say by showing us how
you calculate the gravitational time dilation.
Can you or can you not? That's the question...

I went through the derivation of Schwarzschild's solution quite
carefully (much more carefully than GR textbooks), tell me where I'm
wrong in it:
http://www.mastersofcinema.org/jan/sch.pdf

--
Jan Bielawski

.

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