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hwl

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frame, by using four linear change of variables equations. This defines an apparent field with a

constant metric (which is not the SR metric) in which there is relative acceleration of separation.

From the geodesic - metric equation we see that the acceleration vector depends on the first

partial derivatives of this constant metric and so at least some of these derivatives must be

non-zero. How can this be true?

Can anyone shed light on this puzzle?