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Schuster, Sir Arthur

(Encyclopedia)Schuster, Sir Arthur, 1851–1934, English physicist, b. Germany. At Owens College, Manchester Univ., he was professor of applied mathematics (1881–88) and professor of physics (1888–1907). He is ...

Oersted, Hans Christian

(Encyclopedia)Oersted or Ørsted, Hans Christian häns krĭsˈtyän örˈstĭᵺ [key], 1777–1851, Danish physicist and chemist. He was professor at Copenhagen from 1806. His discovery (1819) that a magnetic need...

Maxwell, James Clerk

(Encyclopedia)Maxwell, James Clerk klärk [key], 1831–79, great Scottish physicist. After a brilliant career at Edinburgh and Cambridge, where he won early recognition with mathematical papers, he was a professor...

Lemonnier, Pierre Charles

(Encyclopedia)Lemonnier, Pierre Charles pyĕr shärl ləmônyāˈ [key], 1715–99, French astronomer. For many years he was professor of physics at the Collège de France. He studied the moon and the influence of ...

Ampère, André Marie

(Encyclopedia)Ampère, André Marie ămˈpēr; Fr. äNdrāˈ märēˈ äNpĕrˈ [key], 1775–1836, French physicist, mathematician, and natural philosopher. He was professor of mathematics at the École Polytechni...

Coulomb, Charles Augustin de

(Encyclopedia)Coulomb, Charles Augustin de ko͞oˈlŏm, ko͞olŏmˈ, Fr. shärl ōgüstăNˈ də ko͞olôNˈ [key], 1736–1806, French physicist. In 1789 he retired from his posts as military engineer and as super...

Poisson, Siméon Denis

(Encyclopedia)Poisson, Siméon Denis sēmāôNˈ dənēˈ pwäsôNˈ [key], 1781–1840, French mathematician and physicist. From 1802 he taught at the École polytechnique, Paris, and was also on the faculty of sc...

Ticino , river, Switzerland and Italy

(Encyclopedia)Ticino, Lat. Ticinus, river, 154 mi (248 km) long, rising in Ticino canton, S Switzerland, and flowing generally S through Lago Maggiore into N Italy, joining the Po River below Pavia. In Switzerland,...

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...

electromagnet

(Encyclopedia)CE5 Electromagnet electromagnet, device in which magnetism is produced by an electric current. Any electric current produces a magnetic field, but the field near an ordinary straight conductor is ...