Columbia Encyclopedia

(Encyclopedia) Characteristics of Spectral Classes for Main Sequence Stars ...

(Encyclopedia) Equal Employment Opportunity Commission (EEOC), U.S. agency created in 1964 to end discrimination based on race, color, religion, sex, or national origin in employment and to promote programs to make ...

(Encyclopedia) German wirehaired pointer, breed of large sporting dog developed in Germany in the mid-19th cent. It stands about 24 in. (61 cm) high at the shoulder and weighs about 60 lb (27 kg). Its harsh, wiry ou...

(Encyclopedia) Girodet-Trioson, Anne-Louis än-lwē zhērôdāˈ-trēôzôNˈ [key], 1767–1824, French painter. Originally named Girodet de Roussy or Roucy, he was a student of J.-L. David, and his classical train...

(Encyclopedia) Granit, Ragnar, 1900–1991, Swedish physiologist, M.D., Univ. of Helsinki, 1927. A professor at the Univ. of Helsinki from 1927, he joined the faculty of the Karolinska Institute, Sweden, in 1940. Gr...

(Encyclopedia) fuller's earth, mineral substance characterized by the property of absorbing basic colors and removing them from oils. It is composed mainly of alumina, silica, iron oxides, lime, magnesia, and water,...

(Encyclopedia) Franklin, John Hope, 1915–2009, the dean of 20th-century African-American historians, b. Rentiesville, Okla., grad. Fisk Univ. (A.B., 1935), Harvard (M.A., 1936; Ph.D., 1941). Franklin served on the...

(Encyclopedia) Vishniac, Roman vĭshˈnēăk [key], 1897–1990, Russian-American biologist, photographer, linguist, art historian, and philosopher, b. Pavlosk, near St. Petersburg. Vishniac took degrees in medicine...

(Encyclopedia) Rothko, Mark rŏthˈkō [key], 1903–70, American painter, b. Dvinsk, Russia (now Daugavpils, Latvia), as Marcus Rotkovitch. His family immigrated to the United States in 1913. He was a student of Ma...

(Encyclopedia) barium bârˈēəm [key] [Gr.,=heavy], metallic chemical element; symbol Ba; at. no. 56; at. wt. 137.327; m.p. 725℃; b.p. 1,640℃; sp. gr. 3.5 at 20℃; valence +2. Barium is a soft, silver-white, ...