What is a wind vane?

Answer

A wind vane is a weather instrument used to determine the direction the wind is blowing. The wind vane spins round and round freely on a vertical rod and points on the direction the wind is blowing from.
Q&A Related to "What is a wind vane?"
When constructing a weather vane, the design must be planned to allow for free movement about the vertical axis. The surface area of the design must be asymmetrical, unequal, which
http://www.ehow.com/how-does_4673877_wind-vane-wor...
A wind vane has a horizontal bar (sometimes it's a tube or shaft) which is mounted upon a circular pivot point that allows the bar to freely spin around in a horizontal plane pointing
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The wind pushes on any surface that isn't aligned with it. The wind will push on the side that it directly impacts, and this puts a torque on the wind vane to swing the other way.
http://answers.yahoo.com/question/index?qid=201110...
How does a wind turbine create electricity? Wind turbines are everywhere, it seems: along the highway, just offshore from your favorite beach-even in the backgrounds of music videos
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1 Additional Answer
Ask.com Answer for: how does a wind vane work
How Does a Wind Vane Work?
When constructing a weather vane, the design must be planned to allow for free movement about the vertical axis. The surface area of the design must be asymmetrical, unequal, which enables the smaller area to turn into the wind. However, the weight must... More »
Difficulty: Easy
Source: www.ehow.com
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