Wednesday, September 2, 2009


Intersecting Wires

Despite all the advances in wireless technology I still have masses of tangled wires behind my computers and TV screens both at work and at home. Plus, of course, several drawers full of power cords, adapters and other wires. I am constantly amazed at their ability to get tangled up no matter how carefully I arrange them, especially if they're in a bag. The minute you turn your back they start snuggling up to each other.

I have often joked about having wireless electricity to solve all this and I've now started finding reports of exactly this breakthrough. Below is a talk on TED by Eric Giler (MIT) showing the principle of WiTricity; how electricity can be converted to a magnetic field and then back to electricity. Basically electricity can be transmitted wirelessly for short distances and the potential for this in the home and office is enormous.

One solution is to have a power pad on a desk, plugged into the mains, and you simply lay your cellphone or other device on it and it recharges. Could this be the end of all those infuriatingly incompatible battery charger cords that infest the world? A giant-sized pad could be on your garage floor to recharge your electric car at night. I almost feel moved to burst into song ....

Read more in an article from CNN, A cordless future for electricity.

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