Ditto a écrit :
> Seven Seas Oscirius wrote:
> > The atoms in solids are bonded rigidly en masse with electronic bonds.
> > And the propagation speed of distubances in electromagnetic fields is c.
>
> I thought about the same question last week after a discussion on the
> propagation of stress through a material when it collides with another.
> QM explains how electrons propagate through materals at c and can do
> the same for phonons propagating at the speed of sound:-
Whoever explained that electrons could propagate at c through any
material
with QM understands neither QM nor electrons.
André Michaud
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