PAS Sharp VAWT Bird Windmill

A nice wind toy that demonstrates the principle and capabilities of Vertical Axis Wind Turbines (VAWTs).The toy consists of a simple lightweight planar wing mounted on a string. When exposed to wind, the wing demonstrates its self-starting capabilities - it begins to tumble and eventually starts to perform circular motions orbiting a virtual vertical axis. The design of the wing includes a counterweight mounted on a outrigger at the leading edge of the wing. The counterweight experiences a centr