- #1
skeptic2
- 1,775
- 59
By noting the direction of the wind, the taper of the blades and the direction of rotation, it is obvious the turbine blades are facing the wind. On the other hand if you blow on a pinwheel while holding it loosely, it turns so the blades are away from the direction of the wind. Does anyone know what mechanism is employed to keep the blades facing the wind?