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Watson Lake

(Encyclopedia)Watson Lake, village (1991 pop. 912), SE Yukon, Canada, near the Liard River and the British Columbia border. It is a Royal Canadian Mounted Police Post, with an airfield and a radio station, located ...

Hoyle, Sir Fred

(Encyclopedia)Hoyle, Sir Fred hoil [key], 1915–2001, British astrophysicist and mathematician, b. Bingley, Yorkshire. During the years of World War II, Hoyle primarily worked on technical problems related to rada...

Bessel, Friedrich Wilhelm

(Encyclopedia)Bessel, Friedrich Wilhelm frēdˈrĭkh vĭlˈhĕlm bĕsˈəl [key], 1784–1846, German astronomer and mathematician. He became (1810) director of the new observatory at Königsberg and professor of a...

Windham

(Encyclopedia)Windham, town (1990 pop. 22,039), Windham co., E Conn.; inc. 1692. It includes the industrial city of Willimantic where rubber, radio and electric parts, machinery, steel, and insulation are manufactu...

Helms, Jesse Alexander

(Encyclopedia)Helms, Jesse Alexander, 1921–2008, U.S. senator from North Carolina (1973–2003), b. Monroe, N.C. He served in the navy, chiefly as a recruiter, during World War II. A local radio broadcasting exec...

radiosonde

(Encyclopedia)radiosonde rāˈdēōsŏnd [key], group of instruments for simultaneous measurement and radio transmission of meteorological data, including temperature, pressure, and humidity of the atmosphere. The ...

air navigation

(Encyclopedia)air navigation, science and technology of determining the position of an aircraft with respect to the surface of the earth and accurately maintaining a desired course (see navigation). Basic to air ...

Darwin, Sir George Howard

(Encyclopedia)Darwin, Sir George Howard, 1845–1912, English astronomer and mathematician; 2d son of Charles Darwin. He was Plumian professor (from 1883) of astronomy and experimental philosophy at Cambridge, and ...

Benny, Jack

(Encyclopedia)Benny, Jack, 1894–1974, American comedian, b. Waukegan, Ill., as Benjamin Kubelsky. His shows on radio (1932–55) and television (1950–65) made famous his miserliness, reproachful silences, and v...

infrared radiation

(Encyclopedia)infrared radiation, electromagnetic radiation having a wavelength in the range from c.75 × 10−6 cm to c.100,000 × 10−6 cm (0.000075–0.1 cm). Infrared rays thus occupy that part of the electrom...