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Possible definitions for aeroscope
gyroscope
Device consisting of a rapidly spinning wheel set in a framework that permits it to tilt freely in any direction, or to rotate about any axis. The momentum of such a wheel causes it to retain its attitude when the framework is tilted. Because of this ability, gyroscopes are used in compasses, in automatic pilots on ships and aircraft, in the steering mechanisms of torpedoes, in antiroll equipment on large ships, and in inertial guidance systems.
horoscope
Astrological chart showing the positions of the sun, moon, and planets in relation to the signs of the zodiac at a specific time. It is used to analyze the character of individuals born at that time, providing information about the current state of their life and predicting their future. Basic to a horoscope is the belief that each heavenly body has its own character, which is modified according to its relation to other celestial bodies at a given moment. To cast a horoscope, the heavens are divided into 12 zones called houses; these influence such aspects of human life as health, wealth, marriage, friendships, or death. See also astrology.
periscope
Optical instrument (see optics) used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see the surroundings while remaining under cover, behind armor, or submerged. A periscope includes two mirrors or reflecting prisms to change the direction of the light coming from the scene observed: the first deflects it down through a vertical tube, the second diverts it horizontally so that the scene can be viewed conveniently.
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