engineer wrote:Physicist:

It is strange that somehow the physicist cannot comprehend that when mag. field is considered the gamma factor from denominator disappears and the energy becomes the same independent of the capacitor rotation as it should.

But engineer, you were telling me that there's a factor of gamma in the denominator for both orientations, no?

Also, somewhere I have read that the energy is not covariant but depends on velocity. An equation E2/cc - pp=const comes to mind.

Don't confuse covariant with invariant. The energy is covariant AND depends on velocity, as your equation demonstrates.

Do not know where the negative kinetic energy statement comes from.

It comes from expanding the gamma in the denominator as a power series in v. The term with the v^2, corresponding to the kinetic energy, comes in with a minus sign.

Another strange comment. Of course; F=qE always in freshmen or advanced courses and q is an absolute invariant.

The correct statement is F = q(E + v x B). The division of this Lorentz force into electric and magnetic forces is frame-dependent. The charge q is certainly invariant, but the electric field E isn't.

I think that further discussion is pointless. Good luck with such a strange physics.

Thanks engineer for an interesting discussion.

But I maintain that the strange physics is what you get when you put the gamma in the denominator