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Re: temperature of flowing fluid

From: John S. Denker:
The official answer is that temperature is defined in
(and only in) the rest frame of the fluid.

Just for completeness,
In Moller's text "The Theory of Relativity" (Par 78, Eq 124), it is
asserted that under a Lorentz boost
T=To*SQRT(1-u^2/c^2).

Bob Sciamanda (W3NLV)
Physics, Edinboro Univ of PA (em)
trebor@velocity.net
http://www.velocity.net/~trebor