Michael Foster wrote:
Stephen A Lawrence wrote:
You've said two different things here: "the strength of the
field will drop", and "the voltage drops". The dielectric will
_certainly_ affect the voltage, just as interposing a charged
parallel plate capacitor would affect the voltage (which wo
Stephen A Lawrence wrote:
> You've said two different things here: "the strength of the
> field will drop", and "the voltage drops". The dielectric will
> _certainly_ affect the voltage, just as interposing a charged
> parallel plate capacitor would affect the voltage (which would
> reduce it by
Michael Foster wrote:
I'm trying to figure out how a couple of guys who are clearly
better educated, and probably a lot smarter than I, can have
gone so far wrong.
OK it's time to point out something trivial.
divergence(E) = 4 pi rho (in cgs units)
E is the "real" electric field (not the
I wrote:
> There is a fundamental problem with this idea. While the earth
> has a net negative charge of say, one megajoule, the tiny
> fraction of a joule per square meter just won't supply the
> repulsive force you need unless your Van de Graaff spacecraft
> is very large and already elevat
I'm trying to figure out how a couple of guys who are clearly
better educated, and probably a lot smarter than I, can have
gone so far wrong.
Stephen A. Lawrence wrote:
> Frederick Sparber wrote:
> Posted earlier:
>> This Field Line Applet is cheaper than buying more VDGs.
http://www.cco.cal
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