Did you know your jaw movement could help generate natural energy? Just in case you were unaware, engineers at the École de Technologie Supérieure in Montreal, Canada have developed a chin strap which lets user harness natural energy. The chin strap helps convert chewing into electricity. Developed with an idea to replace batteries in smaller accessories like earpieces, hearing aids and small gadgets, with batteries powered by renewable source of energy; engineers have created this strap from piezoelectric material to generate 18 microwatts power from 60 seconds of chewing. continue reading..