Posted earlier: > > This Field Line Applet is cheaper than buying more VDGs. > > > http://www.cco.caltech.edu/~phys1/java/phys1/EField/EField.html > If the force around a positively charged sphere is reduced by cladding it with a high dielectric constant material (K) it's external force/field will drop off accordingly: E = D/eo = D/(K*eo) = 1/K * 1/(4(pi) eo * Q/R^2
where D = 1/4(pi) * Q/R^2 Force = 1/K * 1/4(pi)eo * q* Q/R^2 Hence a 3-point craft with a cladded positive center sphere and three exposed negative spheres should repel the earth's excess negative charge up to an altitude that requires charge reversal for getting past the ionosphere. http://www.cco.caltech.edu/~phys1/java/phys1/EField/EField.html > > > > > [Original Message] > > From: Frederick Sparber <[EMAIL PROTECTED]> > > To: <[email protected]> > > Date: 1/30/2007 4:51:38 AM > > Subject: Re: [Vo]: Re: Re Van de Graaf Antics > > > > Harry Veeder wrote > > > > > > Fred, > > > > > > Is your set-up capable of detecting either > > > an increase or a decrease in weight? > > > > > Yes Harry. It can be set on the Acculab 0-10 KG digital scale that > > has a resolution of +/- 1.0 gram at any load up to 10 KG. > > > > The 200 KV VDG weighs 1.5 KG allowing for Styrofoam isolation > > for the scale and an inverter and a bank of 1.5 volt "D" batteries to > power > > the scale and aluminum foil and the VDG so that charge can be transferred > > from the VDG and the aluminum foil which has about 6.0E*23 "uncommitted" > > electrons per mole (27 grams). > > > > If it wasn't for the cost I would use at least three VDGs for getting > > a multipole field configuration to see how it interacts with the > > earth-ionosphere charges. > > > > Fred > > . > > > Harry > > > > > > > > > > > >
