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legion
(Encyclopedia)legion, large unit of the Roman army. It came into prominence c.400 b.c. It originally consisted of 3,000 to 4,000 men drawn into eight ranks: the first six ranks, called hoplites, were heavily armed,...liquid air
(Encyclopedia)liquid air, ordinary air that has been liquefied by compression and cooling to extremely low temperatures (see liquefaction). Its commercial preparation involves purification by washing to remove solu...digital art
(Encyclopedia)digital art, contemporary art in which computer technology is used in a wide variety of ways to make distinctive works. Digital art was pioneered in the 1970s but only came into its own as a viable ar...decompression sickness
(Encyclopedia)decompression sickness, physiological disorder caused by a rapid decrease in atmospheric pressure, resulting in the release of nitrogen bubbles into the body tissues. It is also known as caisson disea...Hope, Bob
(Encyclopedia)Hope, Bob, 1903–2003, American comedian, b. London as Leslie Townes Hope; he came to the United States at the age of five. Famous for his “ski-jump” nose, topical humor, superb timing, brashly i...relapsing fever
(Encyclopedia)relapsing fever, infectious disease caused by a spirochete bacteria of the genus Borrelia and characterized by a high fever that breaks and then recurs a one to two weeks later. Relapsing fever may be...scopolamine
(Encyclopedia)scopolamine hīˈəsēnˌ, –sĭn [key], alkaloid drug obtained from plants of the nightshade family (Solanaceae), chiefly from henbane, Hyoscyamus niger. Structurally similar to the nerve substance ...Cranach, Lucas
(Encyclopedia)Cranach or Kranach, Lucas both: lo͞oˈkäs kräˈnäkh [key], the Elder, 1472–1553, German painter and engraver. The son of a painter, he settled in Wittenberg c.1504 and was court painter successi...geomorphology
(Encyclopedia)geomorphology, study of the origin and evolution of the earth's landforms, both on the continents and within the ocean basins. It is concerned with the internal geologic processes of the earth's crust...gas
(Encyclopedia)gas, in physics, one of the three commonly recognized states of matter, the other two being solid and liquid. A substance in the gaseous state has neither definite shape nor definite volume. Like liqu...Browse by Subject
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