Buys Ballot's law
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English[edit]
Etymology[edit]
Named after C. H. D. Buys Ballot, Dutch meteorologist.
Proper noun[edit]
Buys Ballot's law
- (meteorology) A rule stating that, in the Northern Hemisphere, if a person stands with their back to the wind, the atmospheric pressure is low to the left and high to the right (because wind travels counterclockwise around low-pressure zones in the Northern Hemisphere).