- An anemometer is a device used for measuring wind speed and velocity.
- The term is derived from the Greek word anemos, which means wind
- The first known description of an anemometer given by Leon Battista Alberti in 1450.
- In 1846, John Thomas Robinson improved upon the design by using four hemispherical cups
and mechanical wheels.
- 1991, Derek Weston added the ability to detect wind direction. This vane anemometer is also called as a windmill or a propeller anemometer. The axis on the vane anemometer must be parallel to the direction of the wind and therefore horizontal. A wind vane is used to follow the direction of wind.