dan@ccnysci.UUCP (Dan Schlitt) (01/26/89)
The discussion of relativity would be much easier if no one had ever
used relativistic mass (which is generally shortened to simply mass to
the utter confusion of everyone). There is only one meaningful mass.
That is the "proper mass" or "rest mass". It is something that all
observers can agree on and thus is something which is significant for
the purpose of discussion. But, alas, it is much too late to get
people to quit calling (gamma)mc^2 the mass.
--
Dan Schlitt Manager, Science Division Computer Facility
dan@ccnysci City College of New York
dan@ccnysci.bitnet New York, NY 10031
(212)690-6868