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Whipple, Fred Lawrence

(Encyclopedia)Whipple, Fred Lawrence, 1906–2004, American astronomer, b. Red Oak, Iowa. After graduating from the Univ. of California, Berkeley (Ph.D. 1931), he accepted a position at Harvard, where he remained f...

Mount Wilson Observatory

(Encyclopedia)Mount Wilson Observatory, astronomical observatory located in California on Mt. Wilson, near Pasadena. Mt. Wilson Observatory was founded in 1904 by George E. Hale. Its equipment includes 100-in. (2.5...

gecko

(Encyclopedia)gecko gĕkˈō [key], small or medium-sized lizard of the family Gekkonidae. Some 1,500 species are distributed throughout the warm regions of the world, mostly in the Old World. Despite folklore to t...

Didion, Joan

(Encyclopedia)Didion, Joan dĭdˈēŏn [key], 1934–2021, American writer, b. Sacramento, Calif., Univ. of ...

Eocene epoch

(Encyclopedia)Eocene epoch ēˈəsēnˌ [key], second epoch of the Tertiary period in the Cenozoic era of geologic time, from approximately 54.9 to 38 million years ago. The Eocene in North America was marked by th...

Sinclair, Upton

(Encyclopedia)Sinclair, Upton (Upton Beall Sinclair), 1878–1968, American novelist and socialist activist, b. Baltimore, grad. College of the City of New York, 1897. He was one of the muckrakers, and a dedication...

californium

(Encyclopedia)californium kălˈĭfôrˌnēəm [key] [from California], artificially produced, radioactive metallic chemical element; symbol Cf; at. no. 98; mass no. of most stable isotope 251; m.p. about 900℃; b...

Keita, Ibrahim Boubacar

(Encyclopedia)Keita, Ibrahim Boubacar, 1945–2022, Malian politician. Keita was a member of the Alliance for Democracy in Mali (1990–2001) ...

Abaco Islands

(Encyclopedia)Abaco Islands ăbˈəkō [key], island group, c.780 sq mi (2,020 sq km), most northerly of the Bahamas. Also known as Abaco and Cays, the Abacos include Great Abaco (the largest), Little Abaco, and th...

Malmesbury

(Encyclopedia)Malmesbury mämzˈbərē [key], town (1991 pop. 2,552), Wiltshire, S England. Agricultural and electrical engineering are important to the local economy. Malmesbury is famous for its Benedictine abbey...