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#Mon Aug 09 12:06:31 CEST 2010
Text__xpMoEKOdEd-WfYQ0GneCwQ_title=Perfect Spheres
Text__xpMoEKOdEd-WfYQ0GneCwQ_text=The gyroscopes of Gravity Probe B are the most perfect balls ever produced. If the Earth would be a sphere of comparable perfection, all mountains would be at most two metres above sea-level.<p><p></p></p> The experiment itself is placed in a cooling box serving for a temperature of only 1,82 degrees above absolute zero.