What anemometer is made of
Measures wind speed (Alberti; the cup anemometer — Robinson).
- Cups — has part. Hemispherical cups turned by the wind.
- Rotation axle — has part. A vertical axis.
- Revolution counter — has part. It converts revolutions into speed.
- Wind power — uses. It is turned by the wind.
- Wood — is made of. Alberti’s anemometer is a wooden plate on an axle.