The self-emptying tipping bucket technology is most often used for rain gauges in weather ... wind vane - Uses three cups to measure wind speed, while a wind vane measures wind direction.

Incredibly simple and effective as long as our machine or process is not time sensitive – perfect for a weather ... although wind direction is slightly more complicated. A wind vane is actually ...

A weather vane shows wind direction. The top turns to face the wind. You can compare this with the points of the compass, N for north, E for east, W for west and S for south. The cockerel on this ...