Columbia Encyclopedia

(Encyclopedia)  CE5 Chain reaction: A neutron (n) strikes the uranium nucleus (U-235), causing it to split into fission products A and B and release two neutrons. These neutrons can in turn cause further fissions....

(Encyclopedia) punctuation [Lat.,=point], the use of special signs in writing to clarify how words are used; the term also refers to the signs themselves. In every language, besides the sounds of the words that are ...

(Encyclopedia) Parker, Alton Brooks, 1852–1926, American jurist, U.S. presidential candidate (1904), b. Cortland, N.Y. He practiced law in Kingston, N.Y., and was (1877–85) surrogate of Ulster co., N.Y. He becam...

(Encyclopedia) Murad, Ferid, 1936–, American pharmacologist, b. Whiting, Ind., M.D., Ph.D. Western Reserve Univ. (now Case Western Reserve Univ.), 1965. Murad taught at the Univ. of Virginia (1975–81), Stanford ...

(Encyclopedia) Malema, Julius Sello, 1981–, South African political leader. Involved in the African National Congress (ANC) from a young age, he rose quickly in its influential Youth League, becoming a regional ch...

(Encyclopedia) Langdell, Christopher Columbus lăngˈdəl [key], 1826–1906, American teacher of law, b. New Boston, N.H. He practiced in New York City from 1854 to 1870, when he was appointed Dane professor of law...

(Encyclopedia) autonomy ôtŏnˈəmē [key] [Gr.,=self-rule], in a political sense, limited self-government, short of independence, of a political state or, more frequently, of a subdivision. The term is also used f...

(Encyclopedia) Masaryk, Jan yän mäˈsärĭk [key], 1886–1948, Czechoslovak diplomat, son of Thomas G. Masaryk. He was (1925–38) Czechoslovak minister to Great Britain, and in London he became (1940) foreign mi...

(Encyclopedia) Duerk, Alene Bertha, 1920–2018, American rear admiral, b. Defiance, Ohio, grad. Toledo Hospital School of Nursing, 1941. Enlisting in the Navy Nurse Corps (1943), she was posted to naval hospitals i...

(Encyclopedia) community chest, cooperative organization of citizens and social welfare agencies in a city. Also known as a united fund, it has two purposes: to raise funds through an annual campaign for its member ...