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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.
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.
A windcatcher, wind tower, or wind scoop (Persian: بادگیر) is a traditional architectural element used to create cross ventilation and passive cooling in buildings. [1]
May 26—It may not be a banner Memorial Day weekend in Santa Fe. For the past few years, residents and visitors have been able to see an array of banners honoring the city's veterans as part of a ...
The wind resistance created during the natural course of flight causes the banner to stream out behind the aircraft, allowing it to be easily seen by those nearby. Because of the relatively low speed and altitude ceiling of propeller aircraft, this type is generally favored for the deployment of mobile billboards when fixed-wing aircraft are used.
Apparent wind (V A) is the air velocity acting upon the leading edge of the most forward sail or as experienced by instrumentation or crew on a moving sailing craft. It is the vector sum of true wind velocity and the apparent wind component resulting from boat velocity (V A = −V B + V T).