Other Free Encyclopedias » 21st Century Webster's Family Encyclopedia » 21st Century Webster's Family Encyclopedia - Bell's palsy to Black Friday

Bernoulli's principle

wing lift moving aerodynamics

Bernoulli's principle, theorem of aerodynamics stating that the pressure of a moving gas will be lowest where its speed is highest, or that a moving fluid conserves energy. The theorem, named after Swiss mathematician Daniel Bernoulli (1700–82), explains how airplane wings create lift. Because the air flow is faster across the wing's curved top surface than across its flat underside, air pressure is greater under the wing than over, creating lift.

See also: Aerodynamics; Hydraulics.

Carl Bernstein [next] [back] Giovanni Lorenzo Bernini

User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or