[net.physics] time dilation and EM

KATZ@USC-ISIF@sri-unix (08/30/82)

From: Alan R. Katz <KATZ at USC-ISIF>
I don't have time to fully answer the question, but the doppler effects
are the time dilation effect.  There are two, the doppler effect if
you are going away from an object, which also has a non-relativistic 
explaination, and the "transverse" doppler which was not know before
relativity, which you get if you go "by" the object as opposed to 
directly towards or away from it.  

For further information, consult any lower division (freshman-sophmore)
college physics text, it should have a pretty clear description (one that
has a chapter on relativity in it).  I seem to remember learning about it
in the third semester physics for physicists and engineers.

Sorry I can't be more complete but I don't have time to look it up right
now.  This is from old memories.

			Alan
-------

ech (09/09/82)

#R:sri-unix:-300000:whuxlb:6500005:000:265
whuxlb!ech    Sep  8 23:03:00 1982

Sorry, not so: the Doppler effect is independent of time dilation; more
precisely, time dilation provides a correction to the Doppler effect predicted
by classical methods, i.e. time dilation slightly red-shifts relative to the
classical prediction.

=Ned Horvath=