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airsickness

(Encyclopedia)airsickness: see motion sickness.

seasickness

(Encyclopedia)seasickness: see motion sickness.

IMAX

(Encyclopedia) IMAX : see MOTION PICTURE PHOTOGRAPHY . ...

cinematography

(Encyclopedia)cinematography: see motion picture photography. ...

car sickness

(Encyclopedia)car sickness: see motion sickness. ...

Sitter, Willem de

(Encyclopedia)Sitter, Willem de vĭlˈəm də sĭtˈər [key], 1872–1934, Dutch astronomer and mathematician. He was professor from 1908 at the Univ. of Leiden and in 1919 became director of its observatory. His ...

shock absorber

(Encyclopedia)shock absorber, device for reducing the effect of a sudden shock by the dissipation of the shock's energy. On an automobile, springs and shock absorbers are mounted between the wheels and the frame. W...

vibration

(Encyclopedia)vibration, in physics, commonly an oscillatory motion—a movement first in one direction and then back again in the opposite direction. It is exhibited, for example, by a swinging pendulum, by the pr...

Frith, William Powell

(Encyclopedia)Frith, William Powell, 1819–1909, English anecdotal and genre painter. His early paintings were illustrations, such as his Scene from a Sentimental Journey (Victoria and Albert Mus.). Later he paint...

videodisc

(Encyclopedia)videodisc or videodisk, disk used with a special player and television to reproduce both pictures and sound. A videodisc player cannot record television programs off the air for later playback, unlike...