ANGLE OF INCIDENCE • FREE TRANSLATOR.ORG • Definition of Angle of incidence

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/ˈæŋgəl əv ˈɪnsədəns/ Listen

noun

Angle of incidence n. (Aeronautics) The angle between the chord of an aerocurve and the relative direction of the undisturbed air current.

Incidence n.

A falling on or upon; an incident; an event; an occurrence. (Obs.)

(Physics) The direction in which a body, or a ray of light or heat, falls on any surface. "In equal incidences there is a considerable inequality of refractions."

The rate or ratio at which something occurs; as, the incidence of murder in Los Angeles; the incidence of cancer in men over 50.

Angle of incidence, the angle which a ray of light, or the line of incidence of a body, falling on any surface, makes with a perpendicular to that surface; also formerly, the complement of this angle.

Line of incidence, the line in the direction of which a surface is struck by a body, ray of light, and the like.

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Etymology of 'Angle of incidence'

Collaborative International Dictionary of English 0.48

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"Angle of incidence" Quotes from Famous Books

... aeroplane, so high in the air that it could not be located. The returning beam is invisible to anyone not immediately in the path of the ray, and the ray always goes to the observer. It is simply a matter of pure mathematics practically applied. The angle of incidence equals the angle of reflection. There is not a variation of a foot ...

— The War Terror • Arthur B. Reeve

... changing the position of its wings. This is done to meet the varying gusts and eddies of the air so that sustentation may be maintained and headway made. One second the bird is bending its wings, altering the angle of incidence; the next it is lifting or depressing one wing at a time. Still again it will extend one wing tip in advance of the other, or be spreading or folding, ...

— Flying Machines - Construction and Operation • W.J. Jackman and Thos. H. Russell