Re: Inertial-dampening systems

msadkins04_at_yahoo.com
Date: 02/15/05 

Date: 14 Feb 2005 16:17:28 -0800

Timo Nieminen wrote:

<snip>

>
> If you were to put that circuit into an increasing electric field
parallel
> to the two main wires, then the current along both wires would flow
in the
> direction of the electric field (which is in opposite directions in
the
> usual circuit sense). A little thought about receiving antennas might
> suggest that two straight wire antennas side-by-side will still work
even
> if joined at the tips. A little further thought about transmitting
> antennas (eg centre-fed straight wire antennas) might suggest that
not
> only is there no fundamental prohibition of currents being different
in
> different parts of a circuit, there's also no problem with transient
> currents in open circuits.

A little thought about antennas would suggest that instead of
consisting of isolated loops (or rectangles, as in the case of my
puzzle/query) they are attached by wires to circuits, thus providing
configurations and current paths that do not exist in the scenario I
provided, thus suggesting that your analogy is inapplicable and
non-responsive. Two straight-wire antennas joined at the tips might
continue to work -- or might not if currents on the conductors are out
of phase so that the far field cancels out -- but this is irrelevant
because the rectangle of wire in my scenario is not part of an antenna
circuit. A little further thought about antennas would suggest that
they use alternating currents, which again are inapplicable to the
scenario I provided. Another interesting fact about transmitting
antennas is the fact that the ability to transmit circular EMW from a
wire does not necessarily indicate that current is flowing in that
wire. Alternating current, of the right frequency range given a
particular power source, causes electrons in a conductor to vibrate
back and forth without actually flowing as current. That increased
lattice energy is radiated as radio-frequency EMW.
  .
Mark Adkins
msadkins04@yahoo.com

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