| 26 August 2010

Image via Earthtechling When we see personal chargers, they're almost always based on absorbing energy from the sun. Once in a great while, we also hear of new personal wind-powered chargers. But we almost never hear about water-powered personal chargers. This concept device, called the Vena Microhydro System by designer Danial Hull, bridges a gap in options for the outd... Read the full story on TreeHugger