A ball rolls upward on a tilted track — with no push and no trick? It seems to defy gravity, but science reveals the clever ...

When we first saw it happening, we were frankly in disbelief,” Dr Sushanta Mitra said. “We double-checked everything because ...

Researchers from the University of Waterloo have achieved a feat previously thought to be impossible—getting a sphere to roll ...

The team’s orb rolled vertically at a rate of about 0.5 millimeters per second. Regardless, Mitra and colleagues wrote that ...