Look Ma, No Wires
Posted Friday, July 31st, 2009Eric Giler of Witricity demonstrated a wondrous magic trick: the ability to power an LCD screen and three different cellphones using no wires. “Let’s face it, wires suck,” Giler said at
TEDGlobal. “Batteries also suck.” The day is coming when Witricity’s technology, known as resonant energy, or technologies closely related to it, will allow us to chuck those annoying tethers and cut way back on the 40 million disposable batteries manufactured every year.
Witricity’s technology involves running high-frequency, alternating current into one magnetic coil and tuning a nearby coil to the exact same frequency. This allows the coils to couple their magnetic fields and share power. It’s not dangerous. Giler has had requests for his technology from all the usual suspects, such as consumer electronics makers, the military and medical devices manufacturers, and he’s also had interest from a company that makes electrically heated dog bowls. Read full story:


