On May 21, 1:07*pm, "Szczepan Bialek" wrote:
Alternate electric field from the ends of the dipole kicks the electrons in
the space and they oscillate (longitudinal electric waves).

How much I^2*R loss is there in the plasma conductors of free space?
How far into space does the electron plasma effect extend? If
electrons can flow from a cold aluminum element in a vacuum, why does
a vacuum tube need a special heated cathode?
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73, Cecil, w5dxp.com