Classic Cup Anemometer - How Wind Speed is Measured #9992 (License: Personal Use)

This black-and-white illustration depicts a traditional cup anemometer, featuring four hemispherical cups attached to horizontal arms that rotate around a vertical shaft. The rotation speed correlates directly with wind velocity, making it a fundamental tool in meteorology. Its robust mechanical design ensures durability and accuracy in field measurements.

Used in educational content, meteorology guides, historical instrument showcases, and weather station documentation; targets users seeking technical understanding or historical context of wind measurement tools.