We know that the rate at which electromagnetic energy is lost by a moving
charge, either + or -, does not depend on its speed, it depends only on
its acceleration (radio antennas, x-ray tubes, sunchrotrons, etc).
Consider a small copper ball. It has as many + as -. Does it radiate
e.m. waves when accelerated? I do not think that waves emitted by
electrons and waves emitted by protons, at a given c.m. acceleration,
will be cancelling each other (due to the out-of-phase realation).
SUPPOSE ACCELERATION IS VERY LARGE. ARE THE E.M. WAVES EMITTED OR NOT
BY A MACROSCOPICALLY NEUTRAL OBJECT?
Ludwik Kowalski