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Old April 13th 12, 05:09 PM posted to rec.radio.amateur.antenna
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Default Electron gun



"Szczepan Bialek" wrote in message
...


"Wayne" napisal w wiadomosci
...


"Szczepan Bialek" wrote in message
...

Here is the Tesla's electron gun:
http://en.wikipedia.org/wiki/File:Sp_xmtr.png

snip
So we know that the electrons are liberated from the end of antenna.
But where the electrons come from?
From: "the earth"?
S*


So I suppose we should develop some antennas that have a current maximum
at the end of the antenna?


# Antennas liberated the EM waves and the electrons.
# More electrons is liberated more electrons is flowing in the antenna.
#
# EM travel in space. Electrons fall down on the earth.
# For this reason the earth is necessary.
# Do you agree?
# S*

No. There is a current minimum at the end of an antenna because there is no
place for electrons to flow.

 
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