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Scholz's star

(Encyclopedia)Scholz's star, dim binary star system, consisting of a red dwarf and brown dwarf, in the constellation Monoceros, apparent magnitude 18.3. The red dwarf is a tiny star, with less than ten percent the ...

Banks, Nathaniel Prentiss

(Encyclopedia)Banks, Nathaniel Prentiss, 1816–94, American politician and Union general in the Civil War, b. Waltham, Mass. After serving in the Massachusetts legislature (1849–53), Banks entered Congress as a ...

Leif Ericsson

(Encyclopedia)Leif Ericsson lēf ĕrˈĭksən [key], Old Norse Leifr Eiriksson, fl. a.d. 999–1000, Norse discoverer of America, b. probably in Iceland; son of Eric the Red. He spent his youth in Greenland and in ...

redstart

(Encyclopedia)redstart, common name for an Old World thrush of the genus Phoenicurus, family Turdidae. A small, slender-legged songbird, it is found in woodlands, parks, and heaths. The European redstart, P. phoeni...

selenium

(Encyclopedia)selenium səlēˈnēəm [key], nonmetallic chemical element; symbol Se; at. no. 34; at. wt. 78.96; m.p. 217℃; b.p. about 685℃; sp. gr. 4.81 at 20℃; valence −2, +4, or +6. Selenium is directly ...

Angkor

(Encyclopedia)Angkor ăngˈkôr [key], site of several capitals of the Khmer Empire, north of Tônlé Sap, NW Cambodia, for about five and a half centuries (9th to 15th), the heart of the empire. Extending over an ...

cactus

(Encyclopedia)cactus, any plant of the family Cactaceae, a large group of succulents found almost entirely in the New World. A cactus plant is conspicuous for its fleshy green stem, which performs the functions of ...

Migdol

(Encyclopedia)Migdol mĭgˈdŏl [key], in the Bible. 1 Place near which the Israelites crossed the Red Sea. 2 City, Egypt, where Jews lived. It is the modern Tall al Hayr, S of Pelusium. ...

Edelman, Gerald Maurice

(Encyclopedia)Edelman, Gerald Maurice, 1929–2014, American biochemist and neuroscientist, b. Queens, N.Y., M.D. Univ. of Pennsylvania, 1954; Ph.D. Rockefeller Institute, 1960. He was a professor at the Rockefelle...

Hawran

(Encyclopedia)Hawran or Hauran houränˈ [key] [Heb.,=hollow or cavernous land], region, SW Syria. It is a largely treeless area marked by conical volcanic peaks, barren lava fields, and rich lava soil. In the nort...