Cecil Moore wrote:

Jim Kelley wrote:

Richard Feynman said there is a probability that reflection will occur
at any point within a partially reflecting media.


Of course, there are always 2nd, 3rd, ... Nth order effects.
On this newsgroup, we are usually talking about first order
effects.

And so was Dr. Feynman. You really ought to freshen up on your QED. ;-)

73, ac6xg