On Tue, Oct 29, 2024 at 10:21 AM Alan Grayson <[email protected]> wrote:
*>> First of all Maxwell's Equations are consistent with Special and > General Relativity but not with Quantum Mechanics, so all the charges that > I'm talking about must be macroscopic. A real baseball is electrically > neutral but small (but not small by quantum mechanical standards) **parts > of it **might be very slightly positive and other parts very slightly > negative, and this creates a small electric dipole. So if you rotate the > baseball those positive and negative parts will indeed radiate > electromagnetic waves, and the positive and negative parts will only > partially cancel out because they are in slightly different positions. So > the spinning baseball will start to lose energy and slow down. However the > radiated energy from rotating dipoles is proportional to the fourth power > of angular frequency, so if you were rotating the baseball at just under > the speed that would tear it apart, say about 2000 RPMs, that rotation is > so slow that the effect would be far too tiny to be detectable with today's > technology.* > > *> I don't think this answers my question. The acceleration of a charged > particle due to the Earth's rotation in the lab frame is not trivial, and > should produce a measurable radiation, but AFAICT, it doesn't. AG * > *2000 RPMs is a trivially slow **angular frequency, and as I said the radiated power is proportional to the fourth power of the **angular frequency; so one revolution per 24 hours would be SUPER **trivially slow.* *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* 4pt -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/CAJPayv22OeCzWAgUAGWucfEFgARCSakOJZk%2BTAoKrA54beRkyw%40mail.gmail.com.
