Hi all,
David had a lot to say about frame-dragging and related it to
Whirlpower.
Dhub
--------------
NASA to Test Space-Time Fabric
"If theory holds, the mass and rotation of the Earth, 397 miles below
the probe, should throw the alignment of the spinning balls off
kilter in subtle but measurable ways.
The warping effect has been measured before. The twisting effect,
called frame-dragging, has never been directly detected. Gravity
Probe B aims to detect both."
more:
http://www.wired.com/news/technology/0,1282,62936,00.html
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