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Tags archives: chewing

Chin strap makes electricity from chewing

Chewing can produce about 580 joules of energy in a day Engineers in Canada have built a chin strap that harnesses energy from chewing and turns it into electricity. They say the device could one day take the place of batteries in hearing aids, earpieces and other small gadgets. Made from a “smart” material that becomes electrically charged when stretched, the prototype needs to be made 20 times more efficient […]