Friday, June 8, 2007

Charge iPods, light bulbs: wirelessly

Call it WiTricity, that's what MIT researcher Marin Soljacic calls it. Inspired by the annoying bleeps his cellphone made in the middle of the night when he forgot to charge it, Soljacic set out to find a way for a cellphone to charge itself, provided it was in range of a compatible signal.

And figure it out he did.

Here's your next generation of products, advertisers. A light bulb requires 30-40 watts of power and the minds at MIT made it happen with specially tuned magnetic fields. An iPod, by contrast, might take 2 or 3 watts to recharge.

Read that again. Yes, they lit a light bulb without wires and no one got tingly goose-flesh by sitting near it. It was done entirely with magnetic fields.

Apparently, it's time for consumers to start cutting the cords. The proof of concept is detailed in this month's Science Express. Take a moment and imagine the potential for clean energy in our city streets.

Holy cool, Batman.

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