
Device Turns Body Heat into Electricity
When graduate student Corey Hewitt, from Wake Forest Univ., touches a two-inch square of black fabric, a meter goes berserk. Simply by touching a small piece of Power Felt – a promising new thermoelectric device developed by team of researchers in the Center for Nanotechnology and Molecular Materials – he has converted his body heat into an electrical current. Comprised of tiny carbon nanotubes locked up in flexible plastic fibers and made to feel like fabric, Power Felt uses temperature differences – room temperature versus body temperature, for instance – to create a charge.
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