From the BBC:
Engineers in Canada have built a chin strap that harnesses energy from chewing and turns it into electricity.Anyone else thinking what I'm thinking?
Dr Aidin Delnavaz and Dr Jeremie Voix, mechanical engineers at the École de Technologie Supérieure in Montreal, Canada, suggest that jaw movements are a promising candidate for harvesting natural energy.
The pair, who work on auditory technology like powered ear-muffs and cochlear implants, are keen to put that energy to work, and decrease reliance on disposable batteries.
"We went through all the available power sources that are there," Dr Voix told the BBC. These included the heat found inside the ear canal, and the overall movement of the head, which might have been used in a similar way to the wrist movements that power automatic watches.
Or am I the only one with a filthy mind?