Imagination has never been the most intractable problem in the physics of warp drive; it has been bookkeeping. The Alcubierre concept of 1994, the celebrated one, fits in the general relativity theory ...

Defying Gravity: Physicists Achieve "Impossible" Feat Of Rolling A Ball Vertically Down A Wall. Physicists at Canada’s University of Waterloo have achieved something extraordinary. They’ve made a ball ...