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mechanics
(Encyclopedia) mechanics, branch of physics concerned with motion and the forces that tend to cause it; it includes study of the mechanical properties of matter, such as density, elasticity, and…astrology
(Encyclopedia) astrology, form of divination based on the theory that the movements of the celestial bodies—the stars, the planets, the sun, and the moon—influence human affairs and determine the…aerial and satellite photography
(Encyclopedia) aerial and satellite photography, technology and science of taking still or moving-picture photographs from a camera mounted on a balloon, airplane, satellite, rocket, or spacecraft.…Jupiter, in astronomy
(Encyclopedia) JupiterJupiterj&oomacr;ˈpətər [key], in astronomy, 5th planet from the sun and largest planet of the solar system. Astronomers have discovered 79 satellites orbiting Jupiter,…pendulum
(Encyclopedia) pendulum, a mass, called a bob, suspended from a fixed point so that it can swing in an arc determined by its momentum and the force of gravity. The length of a pendulum is the…space probe
(Encyclopedia) space probe, space vehicle carrying sophisticated instrumentation but no crew, designed to explore various aspects of the solar system (see space exploration). Unlike an artificial…1500–1599 (A.D.) World History
Michelangelo's David (1504) Tasha Vincent Martin Luther (1483–1546) Henry VIII(1491–1547) Queen Elizabeth I (1533–1603) William Shakespeare (1564–1616) Rembrandt van…European Space Agency
(Encyclopedia) European Space Agency (ESA), multinational agency dedicated to the promotion, for exclusively peaceful purposes, of cooperation among European states in space research and technology.…sunspots
(Encyclopedia) sunspots, dark, usually irregularly shaped spots on the sun's surface that are actually solar magnetic storms. The spots are darker because the temperature of the spots is lower than…microscope
(Encyclopedia) CE5 Compound microscope microscope, optical instrument used to increase the apparent size of an object. The electron microscope, which is not limited by the powers of optical…Trending
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