And then it struck me-- of the known forces, Gravity is weakest of them all. However, gravity is dependent upon 1) mass and 2) distance, a human body being a small mass very close to a large mass, Earth. From this elementary knowledge, it is obvious that a) decreasing mass or b) increasing distance will reduce or potentially cancel the force of gravity. This is why objects in space are "weightless" the mass has not changed BUT the distance from the earth has changed.

However, the point is to obtain "weightlessness" or a reasonable facsimile thereof without either increasing distance or reducing mass, as both these options are logistically unrealistic. The only other option is to INCREASE the effect of one of the remaining forces (electromagnetism, strong nuclear, or weak nuclear.) The strong and weak nuclear forces act upon, obviously, the nucleus of atoms. Increasing the effect of either of these forces would only affect individual atoms. Therefore, increasing the effect of electromagnetism would affect larger structures. In fact, maglev (magnetic levitation) trains in use in Japan employ this principle.

So, I had to find a way to increase the effect of electromagnetism. This is usually done with significant amounts of copper wiring, magnets, and dangerously high electrical voltages. Not very desirable considering that human subjects (and possibly household pets) would be the subject of these experiments.  ( Notes on Anti-Gravity, Private letter from Gotard to Liebman, 1994)