http://www.articleheaven.net en-us editorial@articlealley.com Wind turbines are one of the oldes known devices used for generating energy. Although the basic principle behind wind generators has never changed, wind turbine blades in particular have changed drastically over time, from the unwieldy windmill blades of ... http://www.articleheaven.net/wind-turbine-blade-design-1272690.html 04th December 2009