Wind speed is measured with

Wind speed is measured with an anemometer. An anemometer is a device that is used to measure the speed and direction of wind. It consists of several cups that are attached to a central axis. As the wind blows, it causes the cups to rotate, and the speed of rotation is proportional to the wind speed. The anemometer is connected to a display unit that measures and displays the wind speed in units such as miles per hour (mph), kilometers per hour (km/h), or meters per second (m/s). Anemometers are commonly used in weather stations to measure wind speed, which is an important parameter in weather forecasting and climate modeling. Wind speed can also have significant impacts on many aspects of human life, including aviation, transportation, agriculture, and energy production. Therefore, an anemometer is the device used to measure wind speed.