Re: Sparks - Bright in the middle, how to verify it - suggestion

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

Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Parpp807-at-aol-dot-com>

Chuck and Matt,
This may be a little off your topic:

Hoag and Korff, Electron and Nuclear Physics, show a table of sparking 
potentials
for a positive or negative grounded 75 cm sphere. There is a difference in 
the sparking
potential for gaps between 5 and 60 cm depending on which terminal is 
grounded. The voltage (kV) is higher when the negative terminal is grounded. 
The spark potentials are equal at the shorter distances. But at 60 cm it 
requires 937 kV when the positive terminal is grounded, and 995 kV when the 
negative terminal is the ground.

Happy day,
Ralph Zekelman