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A wind vane, weather vane, or weathercock is an instrument used for showing the direction of the wind. It is typically used as an architectural ornament to the highest point of a building. The word vane comes from the Old English word fana, meaning "flag". A cockerel is a traditional figure used as a vane placed on top of the cardinal directions.
Consequently, a wind blowing from the north has a wind direction referred to as 0° (360°); a wind blowing from the east has a wind direction referred to as 90°, etc. Weather forecasts typically give the direction of the wind along with its speed, for example a "northerly wind at 15 km/h" is a wind blowing from the north at a speed of 15 km/h ...
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The weather vane is a retired Douglas DC-3 atop a swiveling support. Located beside the Whitehorse airport the weather vane is used mainly by pilots to determine wind direction. This weather vane only requires a 5 km/hour wind to rotate. The Douglas DC-3 that now serves as a weather vane at Whitehorse International Airport.
The farmer was paid 50 Swedish crowns for the vane, which was subsequently sold to the Swedish History Museum in Stockholm, where it has remained part of the collections of the museum since. [1] [3] A copy is in Söderala. [1] The weather vane is older than the church, which is the earliest known location of the vane.
Wind tees are shaped like an airplane so that they match with the heading of an aircraft ready to take off and land. Wind tetrahedrons always have their pointy ends pointing to the wind. Wind tees and tetrahedrons can swing freely and align themselves with the wind direction, but neither measures the wind speed, unlike a windsock.