Tuesday, July 24, 2007
...now, wireless power transmission!
"Recharging your laptop computer -- and also your cell phone and a variety of other gadgets -- might one day be doable the same convenient way many people now surf the Web: wirelessly."
"The device that Soljačić and his collaborators put together had a disarming simplicity. On one side of the room, hanging from the ceiling, was a ring-shaped electrical circuit, about half a meter across, plugged into the wall. Hanging adjacent to the circuit, but with no physical connection to it, was a slightly larger copper coil looking like an oversize mattress spring. A few meters away hung a similar system with an ordinary light bulb attached to the circuit. When the physicists sent power through the first circuit, the bulb lit up."
Marin Soljačić Homepage