Friday, December 5, 2008

No more batteries

This is awesome. We've had piezoelectrics for a while. They work as microphones and speakers in cell phones, and as motion sensors in the Wii and iPhone.

But now scientists have engineered a piezo sensor that not only can pick up sounds, but it can make a lot of electricity as well. Enough to power your phone.

This could change all sorts of things. Devices powered not by plugging in, but by ambient noise, or the motion of being carried around. Just because of being engineered to a particular size.

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