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Burnham, Sherburne Wesley

(Encyclopedia)Burnham, Sherburne Wesley, 1838–1921, American astronomer, b. Thetford, Vt. After serving as observer at Dearborn Observatory, Chicago (1877–81, 1882–84), and as astronomer at Lick Observatory (...

Armstrong, Edwin Howard

(Encyclopedia)Armstrong, Edwin Howard, 1890–1954, American engineer and radio inventor, b. New York City, grad. Columbia (E.E. 1913). He was associated in research with Michael I. Pupin at Columbia and became pro...

Wilson, Robert Woodrow

(Encyclopedia)Wilson, Robert Woodrow, 1936–, American radio astronomer, b. Houston, Tex., Ph.D. California Institute of Technology, 1962. In 1964 he and co-researcher Arno Penzias began monitoring radio waves in ...

Davis, Elmer

(Encyclopedia)Davis, Elmer, 1890–1958, American newspaperman, radio commentator, and author, b. Aurora, Ind. Davis was a Rhodes scholar (1910–13) at Oxford. For 10 years (1914–24) he was on the staff of the N...

Limbaugh, Rush

(Encyclopedia)Limbaugh, Rush (Rush Hudson Limbaugh 3d) lĭmˈbô [key], 1951–2021, conservative radio...

instrument-landing system

(Encyclopedia)CE5 Instrument-landing system (ILS), the most common instrument-landing approach system, uses two beams to guide an airplane. instrument-landing system (ILS), ground-based radio system designed to...

Kuhn, Thomas Samuel

(Encyclopedia)Kuhn, Thomas Samuel, 1922–96, American philosopher and historian of science, b. Cincinnati, Ohio. He trained as a physicist at Harvard (Ph.D. 1949), where he taught the history of science from 1948 ...

Motala

(Encyclopedia)Motala mo͞oˈtäˌlä [key], city (1990 pop. 29,630), Östergötland co., S Sweden, on Lake Vättern and on the Göta Canal. It is an important lake port and an industrial center. Manufactures includ...

Copernicus, Nicholas

(Encyclopedia)Copernicus, Nicholas kōpûrˈnĭkəs [key], Pol. Mikotaj Kopérnik, 1473–1543, Polish astronomer. After studying astronomy at the Univ. of Kraków, he spent a number of years in Italy studying vari...

Hewish, Antony

(Encyclopedia)Hewish, Antony, 1924–, British astrophysicist, Ph.D. Cambridge, 1952. Hewish spent his entire career as a faculty member at Cambridge, retiring in 1989. He shared the 1974 Nobel Prize in Physics wit...