On Dec 1, 11:25*am, Lostgallifreyan wrote:
Art Unwin wrote in news:15904250-69bb-4aba-8a3f-
:

If you go back to the arbitary boundary of the Gaussian law of statics
and view it as a
Faraday shield it all becomes quite simple. If one adds a time varying
field you have the duplicate of Maxwells laws for radiation, *where
the outside of the boundary is the radiator.
The Faraday shield supplies the transition from a static to a dynamic
field for xmission and
the reverse action *for receiving.
Very basic my dear Watson, and a vindication that particles and not
waves create radiation
which puts it in line with deductions when other methods are applied.

Doesn't look basic, and I suspect it never will to me. The only thing I
can get from this is the idea that a particle model will do what the wave
one does, which isn't surprising but I've been told that particle based
models are usually best left to situations (usually atomic scale quantum
mechanical) where the wave model won't do, and I've never seen anyone suggest
that wave-based theories of electromagnetics were inadequate (or inefficient)
for scales involving obviously large numbers of particles. The other
explanations seemed to grip, but not this one. I'll leave well alone now, but
if anyone else takes up the discussion, I'll read it and only comment if I
can't stop myself..

Well I didn't tell all in the first place because so much untruths are
buried in people"s mind.
When the charge or particle hits the outside of the shield both the
electric and magnetic fields dissapate leaving just the static
particle adheared to the outside. Ofcourse non bound particles in the
air are immediatly attracted to the inside of the shield and move
along the inside of the shield to align themselves with the outside
static particles for equilibrium.
Now for the important stuff that will upset hams. The internal
particle moves to align itself with the outside particle. By moving it
generates a time varying current such that the electric and magnetic
fields that disapated on the outside are now REGENERATED on the
inside.
Most people see or think that the outside magnetic field can pierce
the shield, which is why the name magnetic loop came about. Fields do
NOT penetrate a Faraday shield. A electromagnetic shield is
regenerated by the newly formed internal current which then closes the
circuit.
To put this with the original explanation would be to much for hams to
digest so it is best to split it into two parts.