Re: Space-time curvature

"Henry Haapalainen" <kirppu@xxxxxxxxxxx> wrote in news:dc6b5e$g7f$1@phys-
news1.kolumbus.fi:

> Space-time curvature can be proved wrong easily. We only have to
> demonstrate, that GPS-correction is the same regardless of the altitude
> of the satellite.

The GPS satellites orbit the earth in 12 hours. All GPS satellites orbit at
the same altitude. They orbit at about 16505 mi, 26562 km.

Their altitudes are rather stable.

The formula you can use to compare clocks at different altitudes is

dt1/dt2=
sqrt(1-((2 Mearth G)/(c^2 * (r1+re))/sqrt(1-((2 Mearth G)/(c^2 * (r2+re))

It comes from the schwartzchild metric.

http://www.physics.fsu.edu/Courses/Spring98/AST3033/Relativity/GeneralRelat
ivity.htm

If that were the only relativity effect on the satellites, they would be
running aproximately 560 ppt fast [if I didn't make any mistakes].





--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

bz+sp@xxxxxxxxxxxxxxxxxxxx remove ch100-5 to avoid spam trap
.

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