On Jun 29, 2:13*pm, John S wrote:
You always fall back on the optics thing, don't you?

That's because optical physicists seem to be the only technical
people who understand interference effects. However, most of what one
needs to understand about the subject is contained in my Worldradio
energy article:

http://www.w5dxp.com/energy.htm
--
73, Cecil, w5dxp.com