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At 17:21 -0800 1/20/03, David Rutherford wrote:
That depends entirely upon whether you are in the same reference
(4) If you had breakfast in Los Angeles and lunch in San Diego, would
you really tell _anybody_ that you had breakfast and lunch in the
same place?
frame as Los Angeles and San Diego (which I assume are in the same
reference frame--at least most of Los Angeles is on the same tectonic
plate as San Diego is).
If my frame of reference is a uniformly moving train that passes Los
Angeles at breakfast time and San Diego at lunch time, then I can
easily say that I had breakfast and lunch in the same place--the
dining car.