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单词 apparent motion
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apparent motion
apparent motion n. (a) chiefly Astronomy the perceived movement of a (celestial) object; (b) Psychology the illusion of movement produced when a series of stationary stimuli are viewed in rapid succession.
ΚΠ
1602 T. Blundeville Theoriques Seven Planets 277 The true or apparent motion of the Moone is an arch of the Eclipticke.
1715 tr. D. Gregory Elements Astron. I. iii. §11. 405 The apparent motion of the Sun will be equable.
1815 J. Playfair Outl. Nat. Philos. II. 29 The apparent motion of a body, in any direction, may arise either from the real motion of the body in that direction, or from the motion of the spectator in the opposite.
1934 H. C. Warren Dict. Psychol. 17/1 Apparent (motion or) movement, the perception of motion when stationary stimuli are exposed.
1966 Psychonomic Sci. 6 187/1 The present study explores apparent motion in a situation where a single light is alternated with an array of several lights.
1992 S. P. Maran Astron. & Astrophysics Encycl. 451/2 It was soon realized that these librations..were not actual oscillatory motions of the Moon, but apparent motions arising from Earth's changing viewpoint.
2002 Canad. Psychol. (Nexis) Nov. The rise of motion pictures fostered interest in the stroboscopic effect of apparent motion, fundamental to the illusion of continuity on the screen.
extracted from apparentadj.n.
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