> This has nothing to do with what photons are or aren't. In fact, the > Extinction Theorem is based solely on Classical Electrodynamics, and > doesn't even refer to things called "photons". Well, if this is anything to go by it looks like quackery to me. http://www.extinctionshift.com/details.htm I'll get back to you. Looks a bit of fun - and ATEOTD any theory that explains all the properties to the extent that it is useful in solving problems is as right as the more intuitive ones that are mere models in themselves. Bob