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Unabomber

(Encyclopedia)Unabomber or Unabomer both: yo͞oˈnəbŏmˌər [key], name given by the FBI to the elusive perpetrator of a series of bombings (1975–95) in the United States that killed 3 and wounded 23. The targe...

engineering

(Encyclopedia)engineering, profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life. Until the Industrial Revolution there were only t...

Archimedes

(Encyclopedia)Archimedes ärkĭmēˈdēz [key], 287–212 b.c., Greek mathematician, physicist, and inventor. He is famous for his work in geometry (on the circle, sphere, cylinder, and parabola), physics, mechanic...

Jeans, Sir James Hopwood

(Encyclopedia)Jeans, Sir James Hopwood, 1887–1946, English mathematician, physicist, and astronomer. He was professor of applied mathematics at Princeton (1905–9), later lectured at Cambridge (1910–12) and Ox...

Poincaré, Jules Henri

(Encyclopedia)Poincaré, Jules Henri zhül äNrēˈ pwăNkärāˈ [key], 1854–1912, French mathematician, physicist, and author. He was from 1881 connected with the faculty of sciences at the Univ. of Paris. One ...

Fisher, Irving

(Encyclopedia)Fisher, Irving, 1867–1947, American economist, b. Saugerties, N.Y., Ph.D. Yale, 1891. He began teaching at Yale in 1890 and was active there until 1935. His earliest work was in mathematics, and he ...

Gibbs, Josiah Willard

(Encyclopedia)Gibbs, Josiah Willard, 1839–1903, American mathematical physicist, b. New Haven, Conn., grad. Yale, 1858. He studied abroad and was professor of mathematical physics at Yale from 1871. His great con...

cylinder

(Encyclopedia)CE5 Cylinder cylinder, in mathematics, surface generated by a line moving parallel to a given fixed line and continually intersecting a given fixed curve called the directrix; each line of the fam...

Friedrich Schiller University of Jena

(Encyclopedia)Friedrich Schiller University of Jena frēˈdrĭkh shĭlˈər, yāˈnə [key], at Jena, Germany; founded 1548 as an academy; became the Univ. of Jena 10 years later. The school gained an international...

inequality

(Encyclopedia)inequality, in mathematics, statement that a mathematical expression is less than or greater than some other expression; an inequality is not as specific as an equation, but it does contain informatio...