Jim Kelley wrote:
Power as a scalar quantity does not have direction, and so one could not
for example subtract power 'moving' in one direction from power 'moving'
in the other direction by arbitrarily multiplying one of the magnitudes
by negative one.

For engineers, the direction of the arrow for the Power
Flow Vector in joules/sec is generally accepted to be the
same as the direction of the joules.

From the IEEE Dictionary: "power-flow vector - Vector-
characterizing energy propagation caused by a wave and
giving magnitude and direction of power per unit-area
propagating in the wave."

Please note the "*DIRECTION OF POWER* ... *PROPAGATING*
in the wave", a direct contradiction to your above assertion.
The power measured at the source somehow finds its way to the
load in spite of not having any direction (according to you. :-)

Most of your rantings and ravings over what I have said
are simply semantics and definitions. RF energy and RF
power are so closely related that Walter C. Johnson talks
about the "principle of conservation of power".
--
73, Cecil http://www.qsl.net/w5dxp


----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups
---= East/West-Coast Server Farms - Total Privacy via Encryption =---