Re: New Year question from Leo
"Bilge" <dubious@radioactivex.lebesque-al.net> wrote in message
news:slrnbvmv8g.93j.dubious@radioactivex.lebesque-al.net...
> Harry:
SNIP
> >Except for low velocities, Einstein's theorems are incompatible with
> >Newton's equations.
> >Similarly, Ampere's equations are partially incompatible with those of
> >Maxwell.
>
> That's non-sense. Newtonian physics is a limiting case of relativity.
> Ampere's law is a limiting case of maxwell's equations (i.e., quasi-
> static fields). A theory which is a limiting case of another theory
> indicates compatibility and specifies why one is the limit of the
> other. Two theories which are incompatible make different predictions
> about the same phenomena in a way that the difference cannot be
> resolved in terms of a domain of applicability.
Now this is a point that has been a bit foggy to me for a long time, and
advice is welcome.
Ampere's electrical force law uses the third law of Newton.
According to a number of people, the third law of Newton is violated with
Maxwell's and relativity theory. But despite reading about it, and despite
the apparent simplicity of the issue, I'm still not sure if they are right
or not; it seems you disagree. Perhaps the issue is more subtle than that?
Harald
Fnews-brouse 1.9(20180406) -- by Mizuno, MWE <mwe@ccsf.jp>
GnuPG Key ID = ECC8A735
GnuPG Key fingerprint = 9BE6 B9E9 55A5 A499 CD51 946E 9BDC 7870 ECC8 A735