Roy Lewallen wrote:
It's easy to confuse power and energy, and I've been careful to use
those terms correctly. Power is the rate of energy flow, and I said
nothing about power flowing. (That's Cecil's concept, and careless
application of it leads to irreconcilable problems.)

Roy, God Himself appeared to me in a vision and said that
if you don't stop bearing false witness against me, you are
going to end up in a very bad place.

For the record, here's what I said in a WorldRadio article
more than three years ago: "The author has endeavored to satisfy
the purists in this series of articles. The term "power flow" has
been avoided in favor of "energy flow". Power is a measure of that
energy flow per unit time through a plane. Likewise, the EM fields
in the waves do the interfering. Powers, treated as scalars, are
incapable of interference. Any sign associated with a power in
this paper is the sign of the cosine of the phase angle between
two voltage phasors."

The existence of both voltage and current at any point along the line
tells us that there is instantaneous power at that point, ...

Not if the voltage and current are always 90 degrees out of
phase which is a fact of physics for pure standing waves. There
is no power, instantaneous or otherwise, in pure standing waves.
The cosine of 90 degrees is *always* zero.
--
73, Cecil http://www.w5dxp.com