Re: Toroid Design .

At 11:22 AM 12/20/98 -0700, you wrote:
>Original Poster: bertpool-at-ticnet-dot-com 
>Date forwarded: 	Sat, 19 Dec 1998 14:00:43 -0700
>Date sent:      	Sat, 19 Dec 1998 10:10:04 -0700
>To:             	tesla-at-pupman-dot-com
>Subject:        	Re: Toroid Design .
>Forwarded by:   	tesla-at-pupman-dot-com
>From:           	Tesla List <tesla-at-pupman-dot-com>
><big snip>
>>>I was think about building one and covering it with old news
>> papers and Plaster of Paris.  Sand it smooth with the electric sander then
>> painting it with something that is conductive. The inside of the toriod
>> be hollow.  I was wondering if filling the toroid with large balls of
>> aluminum foil would allow it to store up a larger charge.
>> Gary Weaver
>The inside of a spherical or toroidal discharge electrode has zero volts 
>charge inside.  It does not matter whether you fill the inside with balls of 
>aluminum foil or even with Greg Leyhs (see his web site for a good 
>example), they will have no charge on them.  The surrounding electrode 
>effectively shields them.  The Tesla coil does not see anything inside the 
>toroid.  The outside, however is a different matter.  Hemispheres on the 
>surface of a toroid just may increase the effective capacitance (Tesla 
>constructed his largest top this way).
>Bert Pool

Now that you mention it, thats right.  The knob hill Van De Draff had a lab
inside the spheres with people inside them.  A TC would be no different. But
I think potential difference is why its possible for someone to be inside.
There is no potential difference inside the sphere or toroid because
resistance is almost zero.  

Gary Weaver