In meteorology, an anemometer (from Ancient Greek άνεμος (ánemos) ´wind´, and μέτρον (métron) ´measure´) is a device that measures wind speed and direction. It is a common instrument ...
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used in weather stations. The earliest known description of an anemometer was by Italian architect and author Leon Battista Alberti (1404–1472) in 1450.