Re: GR time question
- From: mluttgens@xxxxxxxxx
- Date: Fri, 2 Jan 2009 02:03:37 -0800 (PST)
On 1 jan, 12:02, Tom Roberts <tjroberts...@xxxxxxxxxxxxx> wrote:
mluttg...@xxxxxxxxx wrote:
On 1 jan, 08:06, Tom Roberts <tjroberts...@xxxxxxxxxxxxx> wrote:
The signals coming up from the clock at the center will tick slower than
the clock at the surface.
I agree, but could you justify your answer?
Sure! This is what GR predicts. Moreover, we have literally zillions of
experiments and observations that confirm this sort of redshift for EM
signals propagating from lower to higher gravitational potential.
Tom Roberts
OK, but could you use GR to solve the following problem?
A clock situated at the center of the Earth ticks at a rate r.
If that clock could be brought at the center of the Sun, would
it then tick faster than r, slower than r or at r?
Marcel Luttgens
.
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- GR time question
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