harvest noise Archives – The Green Optimistic green tech news, since 2008 Tue, 10 May 2011 14:41:20 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Yell at Your Phone to Charge It: New Piezoelectric Device Could Help You https://www.greenoptimistic.com/yell-phone-charge-piezoelectric-20110510/ https://www.greenoptimistic.com/yell-phone-charge-piezoelectric-20110510/#respond Tue, 10 May 2011 14:41:20 +0000 https://www.greenoptimistic.com/?p=18565 Imagine that one day you could charge your mobile phone or other low-consumption devices just by placing them in noisy areas or by yelling at them. South-Korean scientists from the Sungkyunkwan University in Seoul, are now studying a type of zinc oxide-based device that could do just that.

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