Gomboc - World's Only Self-Righting Geometric Object
I present, the ultimate paperweight. According to Wikipedia the GΓΆmbΓΆc is "a convex three-dimensional homogeneous body which, when resting on a flat surface, has just one stable and one unstable point of equilibrium" AKA the only known self-righting object with one stable and one unstable point of equilibrium. This solid stainless steel geometic object proven in 2006 by Hungarian scientists GΓ‘bor Domokos and PΓ©ter VΓ‘rkonyi can be set down at any angle and it will return to its original stable point without using weights that other self-righting objects like inflatable punch clowns do. To achieve this precise balance of mathematical equilibrium, this object is machined to tolerances below 10 microns (1/10th the thickness of a human hair). It's so precise that even dust affects it. Check out the video below to see it action.