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Re: safe frequency



Original poster: "Shaun Epp by way of Terry Fritz <twftesla-at-qwest-dot-net>" <scepp-at-mts-dot-net>

I disagree with this burnt conductive line theory!.

  Your skin is a point of high resistance, especially the outer layers and
the medium frequency (~20Khz) from the plasma arc off of the flyback will
burn the skin, actually poke a small hole in it.  Once the plasma penatrates
the outer skin,  It that it conducts through the body by "volume conduction"
(through mucle, nerve, tissue and blood).  Please note that damage occure
through high (locallized)current concentration.  We don't feel these
currents by muscle spasm or nerve conduction because the frequency is to
high.   These frequencies use to be used in electrotherapy machines.

Higher frequencys (500 Khz to 3Mhz) are used and applied directly to the
body during surgery.  500Khz sinewave at, up to 300 watts of RF energy is
applied to the body through a pencil electrode and it cuts through the skin,
this circuit is completed via a return electrode which is covered with
conductive paste and has large surface area , it measure ~ 4" by 6".   The
larger surface area spreads out the return current to reduce chances of
tissue damage at the return site and the paste makes the skin more
conductive.

Twelve years ago, I built one of these plasma globes using fat albert light
bulbs and a flyback power supply, I tweaked it up and used bigger stepdown
transformers on it so that I had to use 3 amp slow blow fuses on the
primary, 120v side when I ran it.  It poked holes in my skin too and their
was no damage to me done!

Shaun Epp



> Chris,
>
> Actually if you do some research, the place where the arc went in turns
> black, and the place it exits (if you let your finger arc to a ground
lead)
> turns black. Dunno why, but its cool!!
>
> Regards,
> Jason
>
>
>
> Does the concept of passive eugenics mean anything to you? ;)
>
> What you are doing is giving yourself a carbon track. When most things
burn
> (Mainly organic things) they turn to carbon, which is a much better
> conductor than most other things (like your finger). Wood is an insulator,

> when you burn it it turns to carbon, whick conducts very well.
>
> The black spot is dead, burnt skin/muscle/etc. and it isn't a spot, it's a
> line, from one hole to the other, and it takes a LONG time to heal. It's a
> very localised 3rd degree burn, I would strongly reccomend you don't make
a
> habit of this. I'ts fine to do once or twice to prove a point, but don't
be
> doing it daily or you won't have that fingertip for long.
>
> duck
>
>
>
>
> Christopher A. Boden Geek#1
> President / C.E.O. / Alpha Geek
> The Geek Group
> www.thegeekgroup-dot-org
> Because the Geek shall inherit the Earth!
>
>
>
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