"Szczepan Białek" wrote in message
...
"Mike Coslo" wrote
...
Art is trying to convince us that EM energy is also a mechanical force,
consisting of particles that fly off the end of our antennas like little
turds. The ramifications of that means that everything we thought we know
about RF - and in fact all physics is completely wrong.
You have made a small mistake. Antennas are feed with the oscillating
voltage. So the little truds fly off and come back. It is normal
longitudinal wave.
The key problem is what radiate: the end of an antenna or something else.
What do you think?
S*
No, you've made a mistake ... again. EM waves are transverse waves in air
(i.e. around a normal antenna) not longitudinal waves (see
http://en.wikipedia.org/wiki/Longitudinal_wave). Sound waves are
longitudinal because air pressure is a scalar, whereas electric and magnetic
fields are vectors - they have polarisation.
Also, antennas that radiate are fed with alternating current. The terminal
voltage is almost immaterial in comparison with the current - that's what
causes the radiation.
If you want to discover what radiates I suggest you read one of the normal
text books on the subject, like Kraus 'Antennas', and stop making up your
own versions!
Chris