Re: sphere within a sphere

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

Original poster: Bart Anderson <classi6-at-classictesla-dot-com> 

Hi All,

I found the sphere within a sphere idea pretty cool, but lately I haven't 
had time for TCML (other than to keep my open on topics). Thus, I'll keep 
this short.

Just so everyone knows, Javatc and Fantc can run capacitance for sphere 
within a sphere (or more if desired). For Javatc, there's no need to enter 
a coil. If you just enter the sphere values, the program will only run the 
sphere capacitance and it runs fast in this mode. Just something you might 
want to mess around with.

www.classictesla-dot-com

Take care,
Bart

Tesla list wrote:

>Original poster: "Antonio Carlos M. de Queiroz" <acmq-at-compuland-dot-com.br>
>Tesla list wrote:
> >
> > Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
> >
> > The sphere within a sphere concept has considerable merit.
> >
> > In the 1940's Van de Graaff and Trump successfully used this concept to of
> > multi-shells within shells to allow Van de Graaff generators achieve higher
> > potentials than a single sphere could.  There are several articles 
> published
> > in the 1940's --- see Physical Review for these articles (Trump, Van de
> > Graaff, Atta, et al).
>
>The idea in this case was field equalization. The same function of the
>equipotential rings along the column. The several shells were not
>floating, but biased at voltages varying from zero at the outer shell to
>the maximum voltage at the inner shell.
>http://www.coe.ufrj.br/~acmq/herb1940.gif
>May work in a Tesla coil too, by connecting the outer shells along the
>secondary coil (doing something, or nothing, about the "shorted turns"
>that they introduce), but the idea was to -not- produce sparks.
>
>Antonio Carlos M. de Queiroz
>
>
>
>