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tracer

(Encyclopedia)tracer, an identifiable substance used to follow the course of a physical, chemical, or biological process. In chemistry the ideal tracer has the same chemical properties as the molecule it replaces a...

Brown, Herbert Charles

(Encyclopedia)Brown, Herbert Charles, 1912–2004, American chemist, b. London, Ph.D. Univ. of Chicago, 1938. A professor at Wayne State Univ. (1943–47) and Purdue Univ. (1947–78), he shared the 1979 Nobel Priz...

Pabst, G. W.

(Encyclopedia)Pabst, G. W. (Georg Wilhelm Pabst) gāˈôrkh vĭlˈhĕlm päpst [key], 1885–1967, German film director, b. Austria. He used montage in such works of social realism as The Joyless Street (1925), Pan...

Paul

(Encyclopedia)Paul, 1901–64, king of the Hellenes (1947–64), brother and successor of George II. He married (1938) Princess Frederika of Brunswick. During Paul's reign Greece followed a pro-Western policy, and ...

Alexander, king of Greece

(Encyclopedia)Alexander, 1893–1920, king of the Hellenes (1917–20), second son of Constantine I. After his father's forced abdication, he succeeded to the Greek throne with the support of the Allies, who distru...

Hanover, house of

(Encyclopedia)Hanover, house of, ruling dynasty of Hanover (see Hanover, province), which was descended from the Guelphs and which in 1714 acceded to the British throne in the person of George I. George was the gra...

Novalis

(Encyclopedia)Novalis frēˈdrĭkh fən härˈdənbĕrk [key], 1772–1801, German poet. He studied philosophy under Schiller, Schlegel, and Fichte and was especially influenced by Fichte. He later studied geology....

Jordan, Camille

(Encyclopedia)Jordan, Camille kämēˈyə zhôrdäNˈ [key], 1771–1821, French writer and political figure. A moderate supporter of the French Revolution, he fled France during the Reign of Terror and again after...

Margaret

(Encyclopedia)Margaret, 1930–2002, British princess, second daughter of King George VI and sister of Queen Elizabeth II, b. Glamis, Scotland. In 1960 she married a commoner, the photographer Antony Armstrong-Jone...

Fitzherbert, Maria Anne

(Encyclopedia)Fitzherbert, Maria Anne, 1756–1837, wife of George, Prince of Wales (later George IV). He was her third husband. The marriage (1785) was illegal by the terms of the Royal Marriage Act (1772) and the...