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Geiger counter

(Encyclopedia)Geiger counter or Geiger-Müller (G-M) counter gīˈgər-mŭlˈər, –myo͞oˈlər [key], instrument for the detection and quantitative determination of ionizing radiation such as the alpha and beta ...

Mitchell, Joni

(Encyclopedia)Mitchell, Joni, 1943–, Canadian-American songwriter, singer, guitarist, poet, and painter, b. MacLeod (now Fort Macleod), Alta., as Roberta Joan Ander...

Turner, Tina

(Encyclopedia) Turner, Tina 1939- , African American R&B and rock singer, b. Brownsville, Tn., as Anna Mae Bullock. Turner had a turbulent childhood, with her par...

Breyer, Stephen Gerald

(Encyclopedia)Breyer, Stephen Gerald brīˈər [key], 1938–, associate justice of the U.S. Supreme Court ...

bicycle racing

(Encyclopedia)bicycle racing or cycling, an internationally popular sport conducted on closed courses or the open road. Track racing takes place at a velodrome, usually a banked 1,093.6 ft (.333 km) oval. Olympic m...

Gauss, Carl Friedrich

(Encyclopedia)Gauss, Carl Friedrich kärl frēˈdrĭkh gous [key], born Johann Friederich Carl Gauss, 1777–1855, German mathematician, physicist, and astronomer. Gauss was educated at the Caroline College, Brunsw...

Crumb, George Henry

(Encyclopedia)Crumb, George Henry, 1929–, American composer, b. Charleston, W.Va., grad. Mason College of Music, Charleston (B.A. 1950); Univ. of Illinois (M.A. 1953); Univ. of Michigan (D.M.A. 1959). In his comp...

Faraday's law

(Encyclopedia)Faraday's law, physical law stating that the number of moles of substance produced at an electrode during electrolysis is directly proportional to the number of moles of electrons transferred at that ...

Moore, Michael

(Encyclopedia)Moore, Michael, 1954–, American documentary filmmaker, author, and activist, b. Flint, Mich. A highly personal, populist, and frequently controversial and polarizing documentary filmmaker, he made h...

Narva, city, Estonia

(Encyclopedia)Narva närˈvə [key], city (1994 pop. 79,094), NE Estonia, on the left bank of the Narva River. A leading textile center, it also has machinery plants, sawmills, flax and jute factories, and food-pro...