LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #11   Report Post  
Old August 1st 05, 11:35 PM
Jim Kelley
 
Posts: n/a
Default



Walter Maxwell wrote:


The same problem exists with the term "power flow." Engineering
textbooks define power as the "quantity of energy passing a point per
unit time." Thus, power does not flow--energy flows. However, except
when reciting the definition of power, textbooks and journals on wave
propagation use the term "power flow" almost exclusively, with only an
occasional use of "energy flow." As with "current flow," we know what
is meant because of the common usage which generally overshadows the
strict definition."
Perhaps this explanation will satisfy Jim, but perhaps not. We'll see.

Walt, W2DU


Hi Walt,

I am familiar with the common usage of the expression 'power flow' and
of course the Poynting vector. I've been explaining that "energy flows -
not power" on this newsgroup for 4 years and have gotten nothing but
grief for it. I think it will be more interesting to see whether your
explanation will satisfy the others.

73, ac6xg




 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Failure of Poor Concepts in Discussing Glare Reduction Richard Clark Antenna 17 July 27th 05 12:26 PM
Have you had an FT-817 finals failure? Carl R. Stevenson Equipment 4 October 10th 03 01:57 PM
Have you had an FT-817 finals failure? Carl R. Stevenson Equipment 0 October 9th 03 03:42 AM


All times are GMT +1. The time now is 03:59 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017