What is a wind vane?


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.
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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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