Thevane

Thevane is a term that refers to a type of portable weather instrument used to measure wind direction. It is essentially a wind vane, a device that pivots on a low-friction bearing, allowing it to align itself with the direction of the wind. Thevane typically consists of a fin or a tail that catches the wind, and a pointer or arrow that indicates the direction from which the wind is blowing. Common designs include those with a rooster-shaped fin or a simple arrow shape.

These instruments are often found mounted on poles or buildings, particularly in areas where wind patterns are of interest, such as farms, meteorological stations, or recreational areas. Thevane can be made from various materials, including metal, plastic, or wood, and their size can vary from small decorative pieces to larger, more functional instruments. Understanding wind direction is crucial for many activities, including sailing, aviation, agriculture, and weather forecasting. Thevane provides a straightforward and visual method for observing this meteorological element. While more sophisticated anemometers measure wind speed, thevane's primary function remains solely the indication of wind direction.