What is a wind vane?

A wind vane, also known as a weather vane, is a device used to indicate the direction of the wind. It typically consists of a flat board or arrow-shaped figure mounted on a rotating axis so it can pivot freely to align with the direction of the wind. The end of the vane is typically shaped like an arrow, with one end being larger and more sensitive to wind changes.

Wind vanes are commonly found mounted on the roofs of buildings, particularly barns and other agricultural structures, as well as on ships and weather stations. They provide important information for sailors, farmers, and meteorologists to understand wind patterns and make informed decisions based on wind direction.

Wind vanes are often accompanied by a windsock, which provides additional information about wind speed and direction. Together, these tools help people assess wind conditions for a variety of purposes, such as navigation, agriculture, and weather forecasting.