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Re: [Phys-l] velocity-dependent mass (or not)



Quoting John Denker <jsd@av8n.com>:
-- Should this notion be deprecated?
-- Has this notion in fact been deprecated by professional
relativists, for many many decades, i.e. throughout most of
the history of the subject?
-- Is this merely a question of taste, or is the vulgar notion
of velocity-dependent mass provably and quantitatively wrong,
especially when we consider something other than straight-line
motion?
-- How many more decades will it take before this trickles down
to the introductory-level textbooks?

Electromotive force is not a force, displacement current is not really a current, and relatisitic mass, is in a sense, energy or mass depending on one's definition...

Will all these notion be deprecated? Perhaps, physicists enjoy the use of metaphor? :-)


Alphonsus