Columbia Encyclopedia

Search results

500 results found

Greenpeace

(Encyclopedia)Greenpeace, international organization that promotes environmental awareness and addresses environmental abuse through direct, nonviolent confrontations with governments and companies. Founded in 1971...

Nunn, Sam

(Encyclopedia)Nunn, Sam (Samuel Augustus Nunn, Jr.), 1938–, U.S. Senator from Georgia (1973–97), b. Perry, Ga. A lawyer, he was a member of the Georgia House of Representatives (1968–72) and won election as a...

Goeppert-Mayer, Maria

(Encyclopedia)Goeppert-Mayer, Maria, 1906–72, German-American nuclear physicist, Ph.D. Univ. of Göttingen, 1930. She was a researcher at Johns Hopkins (1931–39), Columbia (1939–46), Argonne National Laborato...

star

(Encyclopedia)star, hot incandescent sphere of gas, held together by its own gravitation, and emitting light and other forms of electromagnetic radiation whose ultimate source is nuclear energy. The universe co...

Cronin, James Watson

(Encyclopedia)Cronin, James Watson, 1931–2016, American nuclear physicist, b. Chicago, Ph.D. Univ. of Chicago, 1955. Cronin and co-researcher Val Logsdon Fitch were awarded the 1980 Nobel Prize in Physics for a 1...

Anzus Treaty

(Encyclopedia)Anzus Treaty ănˈzəs [key], defense agreement signed in 1951 by Australia, New Zealand, and the United States. The name Anzus is derived from the initials of the three signatory nations. As a result...

xenon

(Encyclopedia)xenon zēˈnŏn [key] [Gr.,=strange], gaseous chemical element; symbol Xe; at. no. 54; at. wt. 131.293; m.p. −111.9℃; b.p. −107.1℃; density 5.86 grams per liter at STP; valence usually 0. Xeno...
 

Browse by Subject