Columbia Encyclopedia

(Encyclopedia) compact disc (CD), a small plastic disc used for the storage of digital data. As originally developed for audio systems, the sound signal is sampled at a rate of 44,100 times a second, then each sampl...

(Encyclopedia)  Booker, Corey Anthony, 1969- , African American politician, b. Washington, D.C., Stanford University (B.A., 1991; M.A., 1992), Rhodes Scholar, ...

(Encyclopedia) Narges Mohammadi, 1972– , b. Zanjan, Iran, Iranian human rights activist and author, studied at Imam Khomeini International University, also known as ...

(Encyclopedia) Birkbeck, George, 1776–1841, English educator. He established (1800–1804) in Glasgow a popular course of lectures for workingmen, which led to the founding of the Glasgow Mechanics' Institution in...

(Encyclopedia) Atlanta ətlănˈtə, ăt– [key], city (2020 pop. 498,715), state capital and seat of Fulton co., NW Ga., on the Chattahoochee R. and Peachtree Creek, near the Appalachi...

(Encyclopedia) p'Bitek, Okot, 1931–82, Ugandan writer and anthropologist. Educated at the Univ. of Bristol, University College of Wales, and Oxford, p'Bitek is best known for three verse novels, Song of Lawino (19...

(Encyclopedia) Peterson, Martha, 1916–2006, American educator, b. Jamestown, Kans., grad. Univ. of Kansas (A.B., 1937; Ph.D., 1959). She served as instructor in mathematics, assistant dean of women, and dean of wo...

(Encyclopedia) Bok, Derek Curtis, 1930–, American educator and university president, b. Bryn Mawr, Pa., grad. Stanford (B.A., 1951) and Harvard (LL.B., 1954). A professor of law at Harvard from 1958, he served as ...

(Encyclopedia) Hoyt, John Wesley, 1831–1912, American educator, b. Worthington, Ohio, grad. Ohio Wesleyan Univ., 1849. In Madison, Wis., he published the Wisconsin Farmer and Northwestern Cultivator. A founder of ...

(Encyclopedia) Louis Brus, 1943– , b. Cleveland, Ohio, American chemist, studied at Rice University (B.S., 1965) and Columbia University (Ph.D., 1969). He is Samuel ...