Re: Vortices off tops of discharges

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>

Tesla list wrote:
 
> Original poster: "David Thomson by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <dave-at-volantis-dot-org>
 
> Hi Mark,
> 
> >  Hmmm. The glass envelope may have stayed cold to the touch, but
>>remember that tells you nothing about the heat distribution
>>_within_ the globe.

> For the heat circulation you are referring to, there needs to be air
> flow

	Or other material than air...

> and the substance needs to be particulate.

	The usual discharge, especially in a plasma globe is particles.
	Ions.  Electrified atoms.  They follow the usual laws of
	convection, with flows affected by (among other things)
	heat.

> We're talking about EM.

	EM excites a plasma.  The plasma, composed of particles
	is influenced by, among other things, heat.

> EM does not flow with air movement in small, closed spaces.

	Nor in large, unenclosed ones.

> Not that would produce a tornado effect.

	electrical discharges routinely follow air movements, or
	those of other gases/particles.  cf any text on lighting.
 
> >  The globe _does_ get warm after running it a while, right?
 
> No, there is no new warmth, at least discernable warmth, in the globe.
> There is not even a subtle warmth.

	The globe has a 'large' surface area, and the heat flows to
	the entire surface.  Any one point will heat minimally.
	And the actual power levels are small.
	And much of the power goes into maintaining the effect inside
	the globe.

	best
	dwp