s0cratus
6th October 2009 - 05:47 AM
Why physicists don’t say: ‘ potential mass/energy E=Mc^2’ ?
According to SRT rest mass and rest energy have equivalent
meaning: E= Mc^2 or M= Ec^2.
Why SRT and Quantum theory use word:’ rest mass /energy E= Mc^2 ‘
and don’t say: ‘ potential mass/energy E= Mc^2 ’ ?
When somebody says ‘ the particle in the rest . . .’, then we
can image that particle was going maybe to sleep, maybe
to have a cup of coffee . . . . etc.
That a strange terminology the physicists use.
==================== . .
Comments:
#
In the early decades after Einstein introduced his SRT, the standard practice
was to make a distinction between rest mass and relativistic mass, and many
teacher who learned from old texts and older professors have not yet broken
that habit.
Among scientists who deal with relativity in practical situations daily, no such distinction is made.
Mass is just mass; the mass of a particle increases as it is
accelerated, and there is no need to distinguish between
the rest mass and the total mass.
Nice avatar, fellow Socratic guy.
Philip J
#
Your question is right in all earnestness. Although Physicists do not say
they mean it. E = Mc^2 has two aspects. It means every mass,
M is equivalent to the energy, E = Mc^2. If the mass really disappears
it would have been converted into this much energy. And if part of this
mass is disappearing then the same part must have been converted in energy.
Also if there is increase/decrease of energy due to motion or due to so called
potential energy due to elastic or any other forces, then there will be
proportionate increase in mass of the particle.
#
==================== . .
Why physicists never say: ‘ potential mass/energy E=Mc^2’ ?
/ My opinion./
In Classic physics there is ‘ potential energy’ and
there is ‘ kinetic energy’.
And „The Law of Conservation and Transformation of
Energy/ Mass" connects them together.
In Quantum physics the ’rest mass/enegy’ looks as a static factor.
I think that there is problem here.
Because in QT there is ’rest mass/enegy E=Mc^2’ and
there is active / kinetic energy E=hf.
But how „The Law of Conservation and Transformation of Energy/ Mass"
can unite them together nobody explains.
In other words:
Dont know how to explain transforms the potenial
mass/enegy E=Mc^2 into the active / kinetic energy E=hf
the physicsts began to use new terminology and new words.
================== . .
Socratus.
http://www.worldnpa.org/php2/index.php?tab...Display&id=1372===================== . .
[
Moderator: Cut and pasted from a variety of preexisting sources. See other post for full explanation of suspension.]