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Los Angeles Philharmonic
(Encyclopedia) Los Angeles Philharmonic, founded in 1919 by William Andrews Clark, Jr. After his death the Southern California Symphony Association was formed in 1934 to sponsor the orchestra. It was…abrasive
(Encyclopedia) abrasive, material used to grind, smooth, cut, or polish another substance. Natural abrasives include sand, pumice, corundum, and ground quartz. Carborundum (silicon carbide) and…Orbiting Astronomical Observatory
(Encyclopedia) Orbiting Astronomical Observatory (OAO), series of four orbiting observatories (see observatory, orbiting) launched between 1966 and 1972 by the National Aeronautics and Space…firebrick
(Encyclopedia) firebrick, brick that can withstand high temperatures, used to line flues, stacks, furnaces, and fireplaces. In general, such bricks have high melting points that range from about 2,…nose
(Encyclopedia) nose, olfactory and respiratory organ, located between the eyes. The external nose, composed of bone and cartilage, is the most prominent feature of the face in humans. The internal…twilight
(Encyclopedia) twilight, period between sunset and total darkness or between total darkness and sunrise. Total darkness does not occur immediately when the sun sinks below the horizon because light…zodiacal light
(Encyclopedia) zodiacal light or zodiacal band, a faint band of light sometimes seen in the western sky just after sunset in the spring, extending up from the horizon at the point where the sun has…trachea
(Encyclopedia) tracheatracheatrāˈkēə [key] or windpipe, principal tube that carries air to and from the lungs. It is about 41&fslsh;2 in. (11.4 cm) long and about 3&fslsh;4 in. (1.9 cm) in…kapok
(Encyclopedia) kapokkapokkāˈpŏk, kăpˈək [key], name for a tropical tree of the family Bombacaceae (bombax family) and for the fiber (floss) obtained from the seeds in the ripened pods. The floss has…incinerator
(Encyclopedia) incinerator, furnace for burning refuse. The older and simpler kind of incinerator was a brick-lined cell with a metal grate over a lower ash pit, with one opening in the top or side…Trending
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