These bladeless wind generators are economic and bird friendly

SOURCE:http://feeds.mashable.com/~r/Amazing.reveal/~3/55bD7bMmjC8/
http://mashable.com/videos/embed?video=R6UR4WgU&player=defaultThe "Vortex" is an innovative take on the wind generator. It"s bladeless, silent, cheap and bird friendly. What more could you want? Read more...More about Real Time. view full post