Tiny Rooftop Turbine Could Make Urban Wind Farms A Reality

There's a reason that wind farms are placed offshore rather than in urban areas—the turbines are typically huge, difficult to erect, and need a solid sustained gust to produce any meaningful amount of current. This prototype, on the other hand, will assemble easily and take up little space as it quietly produces… » 7/19/12 11:30am 7/19/12 11:30am