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Binns, John Alexander
(Encyclopedia) Binns, John Alexander, c.1761–1813, American agriculturist, b. Loudoun co., Va. He was one of the first to experiment with gypsum as a fertilizer and to convince others of its efficacy…saturation, of an organic compound
(Encyclopedia) saturation, of an organic compound, condition occurring when its molecules contain no double or triple bonds and thus cannot undergo addition reactions. For example, ethane (H3C–CH3)…integrated circuit
(Encyclopedia) integrated circuit (IC), electronic circuit built on a semiconductor substrate, usually one of single-crystal silicon. The circuit, often called a chip, is packaged in a hermetically…absolute value
(Encyclopedia) absolute value, magnitude of a number or other mathematical expression disregarding its sign; thus, the absolute value is positive, whether the original expression is positive or…Plesiosaurus
(Encyclopedia) PlesiosaurusPlesiosaurusplēˌsēəsôrˈəs [key], genus of extinct predatory marine reptiles that arose in the Triassic period of geologic time and continued into the Jurassic and…republic
(Encyclopedia) republic [Lat. res publica,=public affair], today understood to be a sovereign state ruled by representatives of a widely inclusive electorate. The term republic formerly denoted a…gram-atomic weight
(Encyclopedia) gram-atomic weight, amount of an atomic substance whose weight, in grams, is numerically equal to the atomic weight of that substance. For example, 1 gram-atomic weight of atomic…antipodes, in geography
(Encyclopedia) antipodes [Gr.,=having feet opposite], people or places diametrically opposite on the globe. Thus antipodes must be separated by half the circumference of the earth (180°), and one…malleability
(Encyclopedia) malleability, property of a metal describing the ease with which it can be hammered, forged, pressed, or rolled into thin sheets. Metals vary in this respect; pure gold is the most…self-fulfilling prophecy
(Encyclopedia) self-fulfilling prophecy, a concept developed by Robert K. Merton to explain how a belief or expectation, whether correct or not, affects the outcome of a situation or the way a person…Trending
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