Franklin Hall was a normal human until empowered by an explosion that intermingled his molecules with sub-nuclear graviton particles generated by a nearby particle generator, which gave him the ability to manipulate gravitons (the subatomic particles that carry the force of gravitational attraction) and anti-gravitons (similar particles but with opposite force and spin of gravitons). Graviton could surround any person or object, including himself, with gravitons or anti-gravitons, thereby increasing or decreasing the pull of gravity upon it. Hall was able to manipulate gravitons for various uses, including the projection of highly concussive blasts, formation of gravitational force fields and levitation, and had also been proven capable of generating gravitational fields in various objects, making them attract any nearby matter (or individuals) not heavy enough or physically strong enough to resist. By decreasing the pull of gravity beneath him, then manipulating its direction of effect, he could fly at any speed or height at which he could still breathe. However, by using his force field generation capabilities he could also breathe in space. By increasing the pull of gravity beneath his opponents, he could pin them to the ground, having made them too heavy to move, or cause sufficient gravitational stress to impair the normal functioning of the human cardiovascular system. He could also cause an inanimate object (such as a 1-foot (0.30 m) diameter rock) to radiate enough gravitons to enormously increase its own gravitational field, able to attract nearby matter and energy.