How Wind Turbines Work? <http://bit.ly/DXeqJ>
The basic components of a wind turbine are as follows: 1. Rotor - three blades, mounted on a hub - typical rotor diameters are 80 90m for today's larger machines. Blades are usually made from Glass Reinforced Plastic (GRP) and incorporate lightning protection measures. The picture ... Read More » <http://bit.ly/DXeqJ> || History of Solar Technology <http://bit.ly/20mFLX> In 1903, Isidoro Cabanyes, published the idea in the magazine "Electrical Energy", a proposal for a solar chimney. In 1982 German Ministry of Investigation and Technology, in collaboration with Spanish Power Company Union Fenosa, promoted and financed the construction of a solar tower prototype. Read More » <http://bit.ly/20mFLX> [Non-text portions of this message have been removed]
