Wireless power demonstrated but we’re not there yet

WitricityMIT researchers successfully lit a light bulb without wires about two meters away from an energy source, but only 40% of the transmitted energy was used. WiTricity, as they called the approach, is still in the conceptual stage so you won’t see any consumer devices using the technology for quite a bit, if ever. For starters, the whole contraption is fairly large when compared to the device being powered: the 60W bulb was connected to copper coils with a two foot diameter. Still, the use of electromagnetic resonance shows potential and that thrills me: we really haven’t seen any major usable leaps in portable power technologies for ages.

(via Ubergizmo)


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