Wireless Energy Transfer May Power Devices At A Distance
Tired of your laptop’s battery dying during presentations or bursting into flames? Take heart: scientists are perfecting a new method for transmitting electrical energy from a base station using a technique that resembles a wireless Internet connection. Researchers say that a specially designed device should be able to draw power from a strong magnetic field permeating a room. The effect, which has not yet been demonstrated, would take advantage of the stationary magnetic field that surrounds a charged loop of metal....