On Sun, 18 Apr 2004 18:04:22 GMT, "Jimmy"
wrote:
First thought is that it would heat up and detune itself. But this would
only be a problem on transmission and if the tube holding the mecury was
very thin. Conductivity of mercury is not so great compared to more
traditionally used metals but this should not be significant compared to the
radiation resistance of most antennas.

Hi Jimmy,

There are so many things wrong with this sentiment....

For one, this "tube of mercury" (that everyone takes for granted) to
be "tuned" by temperature would have an exceedingly small capillary
(my lab models are easily less than 1mm). Second, constructions of
wavelengths longer than for 2M are laughable (but then, so is the
entire concept). You could never support the column within it as it
would draw a vacuum in its collapse under the influence of gravity
(AKA barometer). Try to counter that with a thinner capillary
(anyone see where this is going in comparison to radiation
resistance?) and almost any heat expansion will rift the enclosure.

When do we get to depleted uranium elements that pre-ionize the æther
around them for "matching?" Will it escape the notice of many that we
would have to then abide by exposure rules from both the FCC and the
Nuclear Regulatory Agency? Or even the NIH?

73's
Richard Clark, KB7QHC