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May 10th 10, 05:27 PM posted to rec.radio.amateur.antenna

Jim Lux

Jim Lux is offline

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What exactly is radio

wrote:
tom wrote:
On 5/6/2010 8:42 PM, tom wrote:
On 5/6/2010 3:25 AM, Szczepan Bialek wrote:
Charged particles can move at any speed from 0 to c and always produce
the
electric field. Why not?
Incorrect. A particle has mass, and cannot attain light speed.

tom
K0TAR

Should have said "charged particle" rather than "particle".

tom
K0TAR

You were correct the first time.

Nothing with mass can attain light speed and it doesn't matter if it is
charged or not.

I think you need to clarify.. zero "rest mass"..

A photon is a particle and moves at light speed. It is currently
believed to have zero rest mass, but it's tough to prove it
experimentally. (That is, an experiment can say it's less than some
very, very tiny number, but then you get into experimental error, etc.)

In any case, unlikely to have much to do with antennas.

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