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Re: an interesting idea...
Jim Lux wrote:
> And, no, air isn't required for a spark to jump.
But the breakdown voltage drops as pressure goes down,
and the appearance of the "spark" changes too, becoming
diffuse. At some point the breakdown voltage starts to
rise again, and there is almost no visible light,
but cathode rays and X rays production.
I am really not sure of exactly what is the behavior
at this point (I would have to read a bit).
Can someone post something more precise on how the
behavior of a "spark" in air as the pressure drops?
Antonio Carlos M. de Queiroz