Quote:
capnq said:
Quote:
narf poit chez BOOM said:
Why not just measure the speed of the earth relative to the speed of light?
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Because that results in the inconveniently small number (0.001% of c) that AngleWyrm mentioned further upthread.
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Actually, it results in a relative speed of 1.0 c (relative to light)
You could measure your speed relative to the earth, or relative to the sun, or relative to the calculated center of the galaxy, or relative to the middle of the local cluster.
But light itself always travels a 1.0c relative to the observer.