What if materials could defy gravity, so that we could leave them suspended in mid-air? ZeroN is a physical and digital interaction element that floats and moves in space by computer-controlled magnetic levitation.
From It’s Okay to Be Smart:
By using computer-controlled magnetic field manipulations, a metal sphere is suspended in mid-air. Even more, it can be made to follow complex paths, “remembering” and repeating actions. If that somehow isn’t enough, just wait until he lights it up like an orbiting planet, and demonstrates Kepler’s Laws [of planetary motion]!