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Huizinga, Johan

(Encyclopedia)Huizinga, Johan yōhänˈ hoiˈzĭngə [key], 1872–1945, Dutch historian. He began his academic career in Indian literature, but his reputation rests on his work in the cultural history of the late ...

Leto

(Encyclopedia)Leto lēˈtō [key], in Greek mythology, daughter of the Titans Coeus and Phoebe and mother of Artemis and Apollo. When she conceived twins by Zeus, Hera sent the serpent Python after her and forbade ...

Chaadayev, Piotr Yakovlevich

(Encyclopedia)Chaadayev, Piotr Yakovlevich pyôˈtər yäˈkəvlyĭvĭch chädäˈyĕv [key], 1794–1856, Russian philosopher. An aristocrat by birth, he was converted to Roman Catholicism. In 1836 the first of hi...

feedback

(Encyclopedia)CE5 Basic feedback control system feedback, arrangement for the automatic self-regulation of an electrical, mechanical, or biological system by returning part of its output as input. A simple exam...

Ecclestone, Bernie

(Encyclopedia)Ecclestone, Bernie (Bernard Charles Ecclestone), 1930–, English automobile racing executive. After a short career racing Formula Three cars in the late 1940s and early 1950s, he managed Formula One ...

Abu Musa

(Encyclopedia)Abu Musa, island (2010 est. pop. 1,868), c. 4.6 sq mi (12 sq km), E Persian Gulf, disputed between Iran, who occupies it, and the United Arab Emirates. Strategically located near the entra...

Smith, William

(Encyclopedia)Smith, William, 1769–1839, English geologist. Through direct observation as a canal-site surveyor, Smith made a systematic study of the geological strata of England and identified the fossils peculi...

polybrominated biphenyl

(Encyclopedia)polybrominated biphenyl or PBB, any of a group of organic compounds used as a fire retardant. In 1973 several thousand pounds of PBB were accidentally mixed with livestock feed that was later distribu...

Du Barry, Jeanne Bécu, comtesse

(Encyclopedia)Du Barry, Jeanne Bécu, comtesse zhän bāküˈ kôNtĕsˈ dü bärēˈ, do͞obărˈē [key], 1743–93, mistress of King Louis XV of France. A courtesan of illegitimate birth, she was the mistress of...

Dubois, Guillaume

(Encyclopedia)Dubois, Guillaume gēyōmˈ dübwäˈ [key], 1656–1723, French statesman, cardinal of the Roman Catholic Church. A man of humble birth, he was tutor to Philippe II d'Orléans (see under Orléans, fa...