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Water-powered phone chargers are coming

The city of Seoul, South Korea just announced that it's building a series of outdoor recharging stations along a manmade stream in the city's downtown area. The chargers won't draw from the city's power grid, however -- they'll draw current from a collection of hydroelectric turbines embedded in the stream. http://www.engadget.com/2014/08/28/water-powered-phone-chargers/ #tech

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