[time-nuts] FW: Pendulums & Atomic Clocks & Gravity

[Bill Beam]

On Thu, 31 May 2007 01:52:34 +1200, Dr Bruce Griffiths wrote:

>Bill Beam wrote:

>>Assume satellite in circular orbit.  (Not really necessary.)
>>Assume test mass's released at rest wrt satellite center of mass.
>>Inner test mass released closer to Earth and outer released farther
>>from Earth.  Also assume no air currents, no relativity, no luminiferous
>>ether, no static, no s- -t.

>> It helps if this problem is solved in a proper (Earth based) inertial frame
>> and to consider the total energy (kinetic plus potential) of the test masses.
>>   
>
>But there are no strictly inertial frames based on the Earth.
>The earth rotates around its axis (neglecting precession, nutation etc), 
>it also orbits the sun which in turn ...
>An actual test of these predictions would be somewhat expensive to carry 
>out.
>The damping due to the air in the shuttle or ISS (as well as a host of 
>other small effects) would tend to damp out such motion.
>The question is how quickly?

This contradicts the last assumption stated above.

>> Clearly a satellite based frame is non inertial and therefore Newtons laws
>> of motion are not valid.
>>
>> Gentlemen:  Those of you who have never taken a university physics course
>> are excused for confusion over centripital/centrifugal/psudo forces.  Some of
>> you who did take a university physics class spent too much time asleep in
>> class.
>>
>> Regards,
>>
>> Bill Beam
>> NL7F
>>   
>
>
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Bill Beam
NL7F





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