Michel Jullian wrote. > > Nice experiment Fred! Wrt the weight changes, it behaves qualitatively as expected doesn't it? > Thanks. Yes the "leakage" around the room and ion wind is pronounced too. > > Did the discharge hurt a lot? > No, just startles you. I'm practicing with it so I can see if the VDG can pump charge between an inner chamber and an outer shell of a "lifter/spacecraft" with putatively no net charge wrt earth ground, to see if it will exert a force on the reported "0.5 to 1.0 megajoule excess negative charge of the earth".
Fred > > Michel > > ----- Original Message ----- > From: "Frederick Sparber" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Saturday, January 27, 2007 1:29 PM > Subject: [Vo]: Re Van de Graaf Antics > > > >A recently acquired Acculab VIC 10KG digital scale (10,100 grams) > > with +/- 1.0 gram resolution and a Science First > > model 10-060 (200 KV) Van de Graaff generator which specifies > > a "Positively Charged Sphere", with a how it works explanation, > > makes for some interesting endeavors. > > > > Setting the VDG on the scale (sitting on a throw rug on a carpeted floor) > > shows a weight of 1509 grams. > > When the VDG is running the weight increases to 1512 grams, and when > > a ~ 2 ft square aluminum sheet is held flat about 4 inches above the globe > > the reading drops to 1490 grams until it sparks through me and goes back up > > to 1511 grams. It seems like the whole room is electrified along with > > the smell of ozone. > > > > I had planned set it on the scale with it sitting atop an aluminum foil sheet laying > > on a 3 inch thick Styrofoam plank and using a bank of D batteries > > feeding an inverter feeding the scale and VDG > > so it can "pump" electrons between the globe and the > > foil so that there wouldn't' be any net charge on the setup wrt ground, > > and watching for weight change when a grounded sheet of > > aluminum foil is held above the globe. However... suggestions??? > > > > Fred
