Researchers at Georgia Tech have come up with a new way to power medical implants, using the motion of the body to generate electricity. By implanting fibers called nanowires, which are just 20-40 billionths of a meter in diameter, the researchers believe they can produce enough energy to drive implantable devices or even smart apparel. The zinc-oxide nanowires are piezoelectric, like the quartz crystals in a wristwatch, so the more you bend 'em, the more energy they produce.
[Via Playfuls]
