Solar Roast: fossil fuel free coffee by Kirsten Dirksen on October 3, 2007 It began as a way for two brothers to work together: one was an amateur inventor interested in the environment; …
Backyard hydro: microhydropower system by Kirsten Dirksen on July 10, 2007 Three Gorges, Itaipu, Grand Coulee… all dams capable of producing thousands of megawatts of power. But you don’t need a …