View Single Post
  #3   Report Post  
Old April 21st 12, 09:47 AM posted to rec.radio.amateur.antenna
Jeff Liebermann[_2_] Jeff Liebermann[_2_] is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2007
Posts: 1,336
Default Autoelectronic emission

On Sat, 21 Apr 2012 09:24:03 +0200, "Szczepan Bialek"
wrote:

Electrons escape from each charged body. Your antennas emit electrons and
for this reason they need the sink of electrons (the earth/chassis/
counterpoise).


Great theory. If antennas emitted electrons, and electrons have mass,
we could then build a rotating antenna powered by the electron
belching reaction mass. Put the antenna on a hub, and watch the
electron emissions turn the antenna as they fly off the antenna at
ummm... the speed of light. A few hundred watts of power should be
more than enough to move the antenna around. Yeah, great physics you
have there.

Hint: How fast do electrons travel in a wire?
No, it's not the speed of light. It's called electron drift velocity.
http://en.wikipedia.org/wiki/Drift_velocity
http://www.jensign.com/JavaScience/www/cuwire/cuwire.html
For the above example, it takes about 12 hours for an electron to
travel 1 meter in a copper wire. Not exactly at RF speeds.

Keep trying. Eventually, you'll get something correct.

--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558