"Gyroscopes... to measure space and time"

Crystal balls rarely have anything to do with science, but soon
NASA researchers will be using a set of quartz spheres to examine
one of the last, untested portions of Einstein's General Theory of
Relativity. The spheres make up four extraordinary gyroscopes
heading for Earth orbit on board the Gravity Probe B mission in 2002
to measure the twisting and compression of space and time around
our rotating planet. FULL STORY at

http://spacescience.com/headlines/y2000/ast24may_1m.htm?list

Date: Wed, 24 May 2000 16:02:13 -0500
From: NASA Science News <science.news@msfc.nasa.gov>
To: [ sci@perc ]

NASA Science News for May 24, 2000

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