The particles that "cause" the other three forces of nature (electromagnetism, strong nuclear force, and weak nuclear force) are their own antiparticles. Assuming you actually believe in gravitons, most likely the same would be true of them. Of course, if they exist, and we had a way of generating and controlling them, we could create artificial gravities which could cancel Earth`s and create an antigravity effect.

The catch is that we aren`t really sure they exist and have no idea how they could be isolated or detected, let alone produced and controlled. No candidates have shown up even in our most massive particle accelerators, so it`s likely that it would take less energy to fight gravity by conventional means than to create gravitons to manipulate it.

• RE: RE: RE: Antigravity - VIE - July 13, 2000 - 18:59 UTC