A child's bamboo rotor on a stick, sold at fairs or markets, is another example of a rigid rotor being unable to cope with a relative wind. (the Chinese had these as a toy about the same time the darker brothers were hunting kangaroos for a living)
Spin it in nil wind, it rises a bit, then flutters to the ground.
Do it in a wind and the flapback makes the oscillations look really ugly.
