Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!pt.cs.cmu.edu!vi.ri.cmu.edu!rwb From: rwb@vi.ri.cmu.edu (Bob Berger) Newsgroups: sci.electronics Subject: RE: antigravity Keywords: electrostatic propulsion Message-ID: <9980@pt.cs.cmu.edu> Date: 23 Jul 90 18:42:52 GMT Organization: Carnegie-Mellon University, CS/RI Lines: 10 I ordered one of these plans when I was a kid. The device was a mylar balloon shaped like a flying saucer and filled with helium to achieve neutral bouyancy. Foil was placed on the top and bottom surfaces, like a big capacitor. A 10 KV voltage applied to this device could supposedly make it rise by interacting with the earth/sky 100 V/meter electric field (see the recent messages about lightning rods for more on this field. I never tried this. I suspect the forces generated would be very small; everything would have to be perfectly balanced.