Home speakers have gotten smaller over the years—think of your smartphone, earphones, and other listening devices compared to your parents' giant stereo system—but the science behind them has largely remained the same. That is, until now. Researchers at Michigan State University have revolutionized audio technology with the development of the ferroelectret nanogenerator, or FENG device. It's a paper-thin, foldable technology that can be used as a speaker or microphone, and can generate its own power as a user moves around.
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Written by Curiosity Staff June 6, 2017
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