This vertical axis wind turbine (VAWT) uses five 3” PVC pipes cut in half for blades rotating on three kids bicycle wheels to spin an Ametek 38 volt motor or a wind blue alternator. The whole ...

The cradle was also connected to the rudder, which controlled the plane's "yaw" (rotation around a vertical axis). This lever, operated by the pilot's left hand, was connected by a pulley system ...

The world's first offshore wind farm was installed in 1991 off the coast of Vindeby on the Danish island of Lolland. It included 11 turbines with a capacity of 450 kW each, and the project cost 10 ...