Here is this great device mentioned again in gizmag
Thermoelectric materials are able to generate an electrical current, via a temperature gradient within themselves. If
thermoelectric fabric were used to make a jacket, for instance, the temperature difference between that garment’s cool exterior and warm interior might be enough to charge devices carried in its pockets. A current could also be generated by a vehicle’s
thermoelectric exhaust pipe, due to its hot interior and the cool air surrounding it. Now, entrepreneurs David Toledo and Paul Slusser have developed a line of thermoelectric cooking pots, that use the heat of a fire to generate electricity when camping... Continue Reading
PowerPot uses cooking heat to power campers' devices
