"The poltergeist effect," said Thomas, facing the group of government physicists, "is still in the field of research and development--and wide open on all sides. Much is still unknown about it, in spite of the fact," he added distastefully, "that certain aspects of it have already been put to work. "You are all familiar with the initial theories, though I shall touch upon them briefly here again. The spatial strains, when under the influence of solar gravity, lunar gravity, and terrestrial gravity all in proper vectorial relationship, add to the spatial strains caused by the magnetic fields of the three main bodies mentioned. The electrostatic fields in the terrestrial atmosphere--the same which cause lightning in another manifestation--also add to the spatial strain. These are all natural phenomena. "The radiation of a thinking brain, gentlemen, is not a natural phenomena--not a natural characteristic warp in space," he corrected with a slight smile. "It causes a vibration in the region of the end-hysteresis loop of space itself when space is saturated to that threshold by the natural warps and strains. It exerts a triggering action that releases a more powerful nonphysical radiation, which in turn releases the space strain that causes--things--to move. Also this final buckling of the space strain releases a component of the initial wave which again exerts the triggering action. The proposition is self-sustaining as long as the gravitic, magnetic, and electrostatic effects are such as to maintain the saturation of space at the hysteresis-loop level. "However," continued Thomas, "it has been discovered that these potentials are not only released, but are dirigible, under the complex force-fields generated by the equipment so far developed. Some effects are akin to gravitic effects--the real nature of which none of us can state, or even guess." "Your statements border on the fantastic," smiled the head visitor, Lowell Johnstown. "Were it not for the fact that your statements have been accompanied by experimental proof, we would be forced to discount them as the ravings of an insane mind. However, your paper before the American Physical Society plus your experimental data--which we all have duplicated--gives proof. The nullification of gravity--" "Not nullification," insisted Thomas. "I do not claim nullification. The effect is a development of diagravitic force." "The difference--?" "Does exist. The generation of a counter-force may, in some cases be considered nullification. But nullification does not describe all aspects of counter-force. I prefer to use the counter-force definition, since vectorial components may be generated in the object under observation. These forces have no relation to the force of gravity acting upon the object, other than can be similarly observed in the free flight of a projectile, where both the forward motion and the gravitic attraction cause summation of forces into a parabolic path."