In meteorology, Buys Ballot's law may be expressed as follows: In the Northern Hemisphere, if a person stands with his back to the wind, the low pressure area will be on his left. This is because wind travels counterclockwise around low pressure zones in the Northern Hemisphere. It is approximately true in the higher latitudes of the Northern Hemisphere, and is reversed in the Southern Hemisphere, but the angle between the pressure gradient force and wind is not a right angle in low latitudes.
Famous quotes containing the words buys, ballot and/or law:
“Gentleman. A man who buys two of the same morning paper from the doorman of his favorite nightclub when he leaves with his girl.”
—Marlene Dietrich (1904–1992)
“Perhaps the fact that I am not a Radical or a believer in the all powerful ballot for women to right her wrongs and that I do not scorn womanly duties, but claim it as a privilege to clean up and sort of supervise the room and sew things, etc., is winning me stronger allies than anything else.”
—Ellen Henrietta Swallow Richards (1842–1911)
“Will mankind never learn that policy is not morality,—that it never secures any moral right, but considers merely what is expedient? chooses the available candidate,—who is invariably the devil,—and what right have his constituents to be surprised, because the devil does not behave like an angel of light? What is wanted is men, not of policy, but of probity,—who recognize a higher law than the Constitution, or the decision of the majority.”
—Henry David Thoreau (1817–1862)