Re: Parallel Transport Of A Vector Around a Closed Curve in Schwarschild Metric

ebunn_at_lfa221051.richmond.edu
Date: 02/20/05 

Date: Sun, 20 Feb 2005 23:05:14 +0000 (UTC)

In article <111aop2395u5c1f@corp.supernews.com>,
Neil <neil_delver@yawwho.com> wrote:
>"David Park" <djmp@earthlink.net> wrote in message
>news:95vQd.1740$9J5.1735@newsread2.news.atl.earthlink.net...

>> Yes, there is an effect called the 'geodetic precession' that is unrelated
>> to, and much greater than, the frame dragging effect. It's about 6.61 arc
>> seconds per year for Gravity Probe B.
[...]
>> I think the effect is principally caused because the satellite makes one
>> orbit in coordinate time t, but the tracking of the gyroscopes is in proper
>> time tau.
>>
>...
>How is angular momentum conserved?

I'm not an expert on this stuff, but I assume that there's back-reaction
on the Earth. Not that you'd have any hope of measuring it, of course.

-Ted 

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