Scientists have developed the first self-powered nanogenerators that scavenge energy from their surroundings. They could someday replace conventional batteries in small electronics.
In a few years, you may never have to recharge your phone again. Today scientists announced the first viable "nanogenerator," a tiny computer chip that gets its power from body movements like snapping fingers or - eventually - your heartbeat.
Forget grades of wool—the clothing of the future's going to be measured in millivolts. Researchers at UC-Berkeley have created electricity-generating nanofibers that could someday be woven into your clothing.