This is a new version of homopolar motor. Is necessary that the battery with the magnets is supported on a material that conducts electricity as the tinfoil.
In the Leidenfrost Effect, a water droplet will float on a layer of its own vapor if heated to certain temperature. This common cooking phenomenon takes center stage in a series of playful experiments by physicists at the University of Bath, who discovered new and fun means to manipulate the movement of water.Researchers test ridged surfaces in order to control the movements of hot water.