On Jan 14, 10:42*pm, Cecil Moore wrote:
On Jan 14, 3:40 pm, Keith Dysart wrote:

So energy does move within the line, though no energy crosses a point
where the voltage or current is always 0.

Zero *NET* energy moves in a standing wave pattern whether it be at a
node or anywhere else. Forward energy and reflected energy moves
across a node and everywhere else because there are no reflections in
a homogeneous medium.

From your posts I have not been able to determine exactly what
YOU mean by "*NET* energy moving". Several possibilities come to mind:
1) the time average of the instantenous power, P(x,t), at a
particular
point on the line.
2) the difference between the time average power in the forward and
reflected waves. This would be equivalent to subtracting the
forward and reflected power indicated by a Bird wattmeter.
3) the difference between the instantaneous forward and reflected
power at a particular time and point on the line.
4) the time average of the difference between the instaneous forward
and reflected power at a point on the line.
5) something completely different?

It would be valuable if you could indicate which of the possible
definitions of "*NET* energy moving" you mean.

It would be even more illuminating if you could describe what
measurements would need to be made on a line and exactly what
calculations should be performed to compute your definition
of "*NET* energy moving".

A rigorous definition might reveal that there is actually
agreement.

...Keith