Re: pain from coil strikes (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 06 Aug 2007 22:12:38 +0000
From: Jeff Behary <jeff_behary@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: pain from coil strikes (fwd)

Well done on the explanations.

For those that don't believe you...here is something extreme to show the 
effects on tissues...
a small Conical Tesla Coil cooking breakfast...I assure you the bacon and 
eggs felt nothing at all:
http://www.electrotherapymuseum.com/Articles/BreakfastDiathermy/index.htm

You can see after cutting the bacon a clear burnt track well "inside" (as 
opposed to simply a burn on the surface).  The current paths through the 
meat vs. the fat of the bacon were completely different.  A lot of the fat 
began to melt both inside and outside of the bacon.

Here is a piece of steak getting zapped from a coil - you can make your own 
grill marks w/o a grill!
http://www.electrotherapymuseum.com/Films/MSD-1.wmv

Here are some insulated surgical clamps holding a piece of steak - one side 
Tesla currents, the other side grounded...
http://www.electrotherapymuseum.com/Films/BC-2.wmv

Even when you are well insulated and attached to the top of a Tesla Coil 
there are effects that take place inside you that you must at least be aware 
of.  After 10 minutes or so your blood pressure will begin to decrease.  The 
effect isn't permanent, but for extended periods greater than that you can 
lower it to dangerous levels if the currents are high.  This is known as 
"Auto-Condensation".

Now, to keep things in perspective, this coil was producing only a 1/2" - 1" 
spark from the ball terminal.  It was powered by a 10kV transformer, approx. 
300 watts.  Its not the average Tesla Coil by any means, and its intended 
use was for surgery to cook and cut tissues.  But...

Even painless low current sparks dehydrate the skin and cause it to redden 
if concentrated too long in one area.  If you are using vacuum tubes or 
electronics instead of spark gaps this effect is more pronounced.

I'll be posting an interesting historical Tesla Coil and article on this 
subject tonight to the list.  It was a unique Tesla Coil that was powered by 
a Static Electric Machine instead of a transformer...a real neat design, 
cylindrical coils, with the primary coil on the inside and the secondary 
coil on the outside(!)...

Jeff Behary, c/o
The Turn Of The Century Electrotherapy Museum
http://www.electrotherapymuseum.com

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