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Science Forum Index » Physics - Relativity Forum » Is the WHOLE GPS clock in free fall?...
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| Dr. Henri Wilson... |
 Posted: Mon Jul 21, 2008 7:06 pm |
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Guest
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We know that a GPS clock emits N ticks per GPS orbit before launch and N+n
ticks per GPS orbit AFTER launch, as counted by the GO. It clearly has
physically altered as seen by the original observer in the original frame,
presumably due to its being placed in free fall and cutting the Earth's fields.
Now consider this. Any object in orbit can rotate once per orbit (like the
moon) or it can be completely free of any such absolute rotation.
(use fixed pitch font)
It can orbit like this:
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OR like this:
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The question is, does a GPS clock rotate once per orbit or not.
If the former is true and it spins at one rev per 12 hours, it is obvious that
the centrifugal forces due to that rotation will most likely change the
relationship between all atoms in the clock and hence its timing properties.
Even if it does not rotate, Internal forces will exist due to the fact that
atoms in slightly different orbits will want to move laterally wrt each other
with possible similar influences on timing.
My point is that any object in orbit will experience internal forces due to the
fact that natural orbit periods vary with height and that in the case of the
GPS system, the consequences may not be insignificant.
Henri Wilson. ASTC,BSc,DSc(T)
www.users.bigpond.com/hewn/index.htm
All religion involves selling a nonexistant product to gullible unfortunates. Einstein cleverly exploited this principle with his second postulate. |
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