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oscilloscope

(Encyclopedia)oscilloscope əsĭlˈəskōpˌ [key], electronic device used to produce visual displays corresponding to electrical signals. Displays of such nonelectrical phenomena as the variations of a sound's int...

Roach, Hal

(Encyclopedia)Roach, Hal (Harold Eugene Roach, Sr.), 1892–1992, American move producer and director, b. Elmira, N.Y. He entered (1912) the motion-picture industry as an extra, and by 1914 had founded a production...

Hughes, Howard Robard

(Encyclopedia)Hughes, Howard Robard, 1905–76, U.S. business executive, b. Houston. As a young man he inherited (1925) the patent rights to an oil tool drill, which, manufactured by the Hughes Tool Company, formed...

Hawks, Howard

(Encyclopedia)Hawks, Howard (Howard Winchester Hawks), 1896–1977, American film director, b. Goshen, Ind. Although not as well known as such contemporaries as John Ford and Alfred Hitchcock, he has been criticall...

Steichen, Edward

(Encyclopedia)Steichen, Edward stīˈkən [key], 1879–1973, American photographer, b. Luxembourg, reared in Hancock, Mich. Steichen is credited with the transformation of photography into an art form. At 16, whil...

Jolson, Al

(Encyclopedia)Jolson, Al jōlˈsən [key], 1888–1950, American entertainer, whose original name was Asa Yoelson, b. Russia. He emigrated to the United States c.1895. The son of a rabbi, Jolson first planned to be...

Hamlisch, Marvin

(Encyclopedia)Hamlisch, Marvin, 1944–2012, American composer, conductor, and pianist, b. New York City, grad. Queens College (B.S., 1967). A versatile and prolific composer of melodies ranging from the soulfully ...

Hecht, Ben

(Encyclopedia)Hecht, Ben hĕkt [key], 1894–1964, American writer, b. New York City. He grew up in Wisconsin and, while still in his teens, worked on newspapers in Chicago. Early in his career he became involved i...

aerodynamics

(Encyclopedia)aerodynamics, study of gases in motion. As the principal application of aerodynamics is the design of aircraft, air is the gas with which the science is most concerned. Although aerodynamics is primar...

Kakutani, Shizuo

(Encyclopedia)Kakutani, Shizuo, 1911–2004, Japanese mathematician, b. Osaka, Japan, grad. Tohoko Univ, Ph.D. Princeton, 1941. Kakutani repatriated to Japan during World War II, but returned to Princeton in 1948 a...