11 May '11, 12pm

Mobile phones to be charged by your voice

Mobile phones to be charged by your voice

"The sound that always exists in our everyday life and environments has been overlooked as a [power] source. This motivated us to realize power generation by turning sound energy from speech, music or noise into electrical power," said Dr. Sang-Woo Kim, one of the developers. "Sound power can be used for various novel applications including cellular phones that can be charged during conversations and sound-insulating walls near highways that generate electricity from the sound of passing vehicles."

Full article: http://www.mnn.com/green-tech/gadgets-electronics/stories...

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