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Luxembourg, city, Luxembourg

(Encyclopedia)Luxembourg or Luxemburg, city (1991 pop. 75,377), capital of the Grand Duchy of Luxembourg, S Luxembourg, at the confluence of the Alzette and Pétrusse rivers. It is a commercial, banking, industrial...

Hope, Bob

(Encyclopedia)Hope, Bob, 1903–2003, American comedian, b. London as Leslie Townes Hope; he came to the United States at the age of five. Famous for his “ski-jump” nose, topical humor, superb timing, brashly i...

ionosphere

(Encyclopedia)ionosphere īŏnˈəsfēr [key], series of concentric ionized layers forming part of the upper atmosphere of the earth from around 30 to 50 mi (50 to 80 km) to 250 to 370 mi (400 to 600 km) where it m...

Shaffer, Sir Peter

(Encyclopedia)Shaffer, Sir Peter shăfˈər [key], 1926–2016, English playwright, b. Liverpool, grad. Cambridge, 1950. Before turning to the stage he wrote for radio and television and was the author of several m...

Plummer, Christopher

(Encyclopedia) Plummer, Christopher (Arthur Christopher Orme), 1929-2021, Canadian-American actor, b. Toronto, Canada. Raised by his mother, Plummer first aspire...

Sagan, Carl Edward

(Encyclopedia)Sagan, Carl Edward sāˈgən [key], 1934–96, American astronomer and popularizer of science, b. New York City. Early in his career he investigated radio emissions from Venus and concluded that the c...

Wolf, Markus Johannes

(Encyclopedia)Wolf, Markus Johannes vôlf [key], 1923–2006, East German spymaster. A legendary cold-war espionage chief, he was called “the man without a face” because until 1978 there was no known photograp...

Brutus, Dennis Vincent

(Encyclopedia)Brutus, Dennis Vincent, 1924–2009, South African poet, b. Salisbury, Rhodesia (now Harare, Zimbabwe). Brutus grew up in South Africa and received (1947) his B.A. from the Univ. of Fort Hare in Alice...

radar

(Encyclopedia)radar, system or technique for detecting the position, movement, and nature of a remote object by means of radio waves reflected from its surface. Although most radar units use microwave frequencies, ...