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Grizzlycomet
Apr3-04, 08:07 AM
A satellite designed to test two fundamental predictions made by Albert Einstein about the universe is ready for launch, 45 years after it was first proposed, NASA and Stanford University officials said Friday. http://www.cnn.com/2004/TECH/space/04/02/einstein.satellite.ap/index.html

Monique
Apr4-04, 02:42 PM
I was just about the post the same :)
So how large would they predict the deviation to be after two years?

Creator
Apr5-04, 10:43 PM
I was just about the post the same :)
So how large would they predict the deviation to be after two years?

Monique; there are two GR effects predicted upon the gyroscopes.
One is a geodetic effect (due to the 'curvature' of space-time) which amounts to an anomolous precession of about 6.6arcseconds per year.

The other is the Lense-Thirring (frame dragging) precessional prediction which comes to only 0.042 arcseconds/yr. :biggrin:

Creator :wink: