Cecil Moore wrote:
Gene Fuller wrote:
Help me out. How can we have scalars flowing in opposite directions?
If the waves can interact, as you claim, why does the associated
energy fail to interact and merely pass like ships in the night?

That is the nature of EM waves, Gene. EM waves flowing
in opposite directions do NOT interact. However, their
reflected and transmitted components traveling in the
same direction can and do interact at an impedance
discontinuity.



Cecil,

Progress!

All we need now is that you also understand that waves flowing in the
SAME direction do NOT interact unless there is an interface or other
discontinuity.

All sorts of things can happen at discontinuities. The detailed physical
mechanisms and the models are well understood.

73,
Gene
W4SZ