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Dec23-11, 12:47 PM
P: 1,555
Quote Quote by A.T. View Post
A signal from a source receding away from me needs longer to get to me, than a signal from a source at the same distance at rest relative to me?
In SR?
No, they take exactly the same time.

However a signal from two sources co-locating, one at rest and the other in motion relative to the receiver does not, the one in motion takes less time.