Energy-Harvesting Tech Could Boost Power for Cell Yellers

Energy-Harvesting Tech Could Boost Power for Cell Yellers
The phrase "In the beginning was the Word" may soon take on a whole new meaning for cellphone users, if work being done by a researcher at South Korea's Sungkyunkwan University pans out.The scientist, Sang-Woo Kim, has been working on converting sound into electricity. Among other things, the technology might harness cellphone users' voices to charge their devices' batteries while they're ...

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