Buys Ballot's law

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What Wikipedia says

In meteorology, Buys Ballot's law (Dutch pronunciation: [ˈbœyz bɑˈlɔt]) may be expressed as follows: In the Northern Hemisphere, if a person stands with their back to the wind, the atmospheric pressure is low to the left, high to the right.

Excerpt from the Wikipedia article “Buys Ballot's law”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Pierre cb, Public domain, via Wikimedia Commons.