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Mitchell, Joni

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

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 ...

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...

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...

Breyer, Stephen Gerald

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

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...

Lederman, Leon Max

(Encyclopedia)Lederman, Leon Max lĕdˈərmən [key], 1922–2018, American physicist, Ph.D. Columbia, 1951. He was a professor at Columbia until he became director of the Fermi National Accelerator Laboratory in B...

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...

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...