what are the procedure of wind vane
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Take the wind vane outside and place it in an open area. Use a compass to make sure the N on your direction disk is pointing north. When the wind blows, observe which direction the arrow points. The arrow will point in the direction the wind is blowing from.
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Constructing a Wind Vane
The pointer must have an unequal surface area, this will allow the smaller area to turn according to the wind. Distribute the weight equally on both sides of the axis. This will rotate the wind vane freely. The arrow point to the direction from which wind is coming.
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