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From battery life to pure life, new research shows we're getting closer to a future where important implanted and wearable health devices could run on power collected from our own organs.
Researchers from Princeton and Caltech come up with a piezoelectric material that could harness body movements to charge consumer electronics--even pacemakers.
A microelectromechanical system out of Purdue vibrates enough to generate power when subjected to sounds in the 200- to 500-hertz range. After testing the device using hip-hop, jazz, blues, and rock, researchers find "rap is the best."