Jim Kelley wrote:
Cecil Moore wrote:
Does energy being redistributed in new directions really look
like a lack of interaction to you?

Roy is absolutely right, Cecil. Interact is a very poor choice of
terms in this discussion.

Roy did NOT say "interact" was a poor choice of terms. He
chose to use it as did Hecht. Hecht says waves interact.
Roy says they don't interact. I'm more likely to trust
Hecht over someone who says an S-Parameter analysis is
"gobbledigook" (sic) and doesn't even know how to
spell the word.

Would you assert that photons can have an
effect on each other?

Of course. Coherent photons emitted from different phased
antenna elements obviously have an effect on each other.
I suspect in addition to not understanding coherent
interference, you also don't understand coherency. When
coherent photons are traveling in the same path in the
same direction, they do not pass like ships in the night.
They affect each other. If they interfere destructively,
they redistribute some of their photonic energy in a
different direction. Every reference in the world says
that is what happens.

The fact is, waves and photons can only
interact with matter. If the superposition of waves actually had an
effect on the waves themselves then interference patterns wouldn't
look the way they do. Think about it.

I have thought long, hard, and deep about it. Wave cancellation
is prima facie evidence that coherent waves can have a permanent
effect on each other, even in free space. I don't know anything
more permanent than wave cancellation bringing both the net
E-field and the net H-field to zero.

No, not all coherent waves interfere. No, not all waves that
interfere cancel each other. Some of them do just the opposite.
But sometimes they do cancel. If you would wade through
the S-Parameter analysis with me, you would understand. An S-
parameter analysis of a Z0-match will expose the wave cancellation
toward the source for all to see. But it's rather obvious that
your mind is already made up, you think you know everything, and
will stop at nothing, including character assassination, to avoid
learning anything new.

How about taking the S-Parameter analysis step by step? Then
you can point out the very step where I wander astray of the
laws of physics.
--
73, Cecil http://www.w5dxp.com