Re: Questions (fwd)

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

Original poster: Parpp807-at-aol-dot-com 

Hi Simon,
We may be drifting a bit off topic here. 
The electrostatic force, like the gravitational force obeys an inverse-square 
law but
F is proportional to 1/distance squared, not equal to it. In either case 
there is a universal constant of proportionality,  the value of which depends 
upon the units chosen. Also, the laws apply to a point charge or a mass that 
is very small compared to the distance.  A Tesla coil in a Faraday cage is 
not a point.
Of greater concern is the strength of the EM field measured in Volts per 
meter.
A Faraday shield works if the holes in the screen are smaller than the coil 
wavelength.
At very short wavelengths the shield can be made of copper window screen.
Hope our ever diligent, vigilant moderator is on break time.

Cheers,
Ralph Zekelman