Cecil Moore wrote:

Jim Kelley wrote:

Except that D is not caused by, and cannot be caused by C. Only
reflection can cause reflection. The claim that momentum reverses
direction without encountering a physical reflector is a violation of
conservation of momentum.


You missed the point, Jim. The wave indeed does encounter a
physical reflector and indeed cannot happen without the physical
impedance discontinuity. It meets all of your requirements.

Well then, there it is. My requirements have been met. As long you say
so, Cecil. :-)

73 de ac6xg