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Teotihuacán

(Encyclopedia)Teotihuacán tāōtēwäkänˈ [key], ancient commercial and religious center in the central valley of Mexico, c.30 mi (48 km) NE of Mexico City. Once thought to be the great religious center of the T...

galactic coordinate system

(Encyclopedia)galactic coordinate system, astronomical coordinate system in which the principal axis is the galactic equator (the intersection of the plane of the Milky Way with the celestial sphere) and the refere...

Maček, Vladimir

(Encyclopedia)Maček or Machek, Vladimir both: vlädēˈmĭr mäˈchĕk [key], 1879–1964, Croatian political leader. He headed the Croatian Peasant party from 1928. A vigorous opponent of the dictatorship of King...

Boris III

(Encyclopedia)Boris III, 1894–1943, czar of Bulgaria (1918–43), son of Czar Ferdinand, on whose abdication he succeeded to the throne. He ruled constitutionally until 1934, then set up a military dictatorship u...

Zsigmondy, Richard Adolf

(Encyclopedia)Zsigmondy, Richard Adolf, 1865–1929, Austrian-German chemist, Ph.D. Univ. of Munich, 1889. Zsigmondy was a lecturer at the Univ. of Munich (1887–1893) and at the Univ. of Graz (1893–97), then wo...

Serrano Súñer, Ramón

(Encyclopedia)Serrano Súñer, Ramón rämōnˈ sĕräˈnō so͞onyĕrˈ [key], 1901–2003, Spanish politician. A conservative member of the Cortes (1933–36), he joined his brother-in-law, Francisco Franco, earl...

Konoye, Fumimaro

(Encyclopedia)Konoye, Fumimaro fo͞oˌmēmärōˈ kōnōyāˈ [key], 1891–1945, Japanese statesman. He was a scion of the ancient Fujiwara noble family. In June, 1937, he accepted the premiership. A former libera...

weather vane

(Encyclopedia)weather vane or wind vane, instrument used to indicate wind direction. It consists of an asymmetrically shaped object, e.g., an arrow or a rooster, mounted at its center of gravity so it can move free...

Peter II, king of Yugoslovia

(Encyclopedia)Peter II, 1923–70, king of Yugoslavia (1934–45). He succeeded under the regency of his cousin, Prince Paul, when his father, King Alexander, was assassinated in Marseilles. In World War II, when P...

titration

(Encyclopedia)titration tītrāˈshən [key], gradual addition of an acidic solution to a basic solution or vice versa (see acids and bases); titrations are used to determine the concentration of acids or bases in ...