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The force on a body resulting from it's motion through a fluid (gas or liquid). This force is directly opposed to the direction of travel.

38 votes
5 answers
26k views

Why does a weather vane arrow point in the direction of the wind?

It seems that a weather vane will rotate in order to minimize energy and thus orient itself parallel to the wind. What I do not understand is why it is implied that the weather vane arrow should poin …
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