Columbia Encyclopedia

Search results

500 results found

explosive

(Encyclopedia)explosive, substance that undergoes decomposition or combustion with great rapidity, evolving much heat and producing a large volume of gas. The reaction products fill a much greater volume than that ...

Bush, George Walker

(Encyclopedia)Bush, George Walker, 1946–, 43d President of the United States (2001–9), b. New Haven, Conn. The eldest son of President George H. W. Bush, he was was raised in Texas and, like his father, attende...

filibuster

(Encyclopedia)filibuster, term used to designate obstructionist tactics in legislative assemblies. It has particular reference to the U.S. Senate, where the tradition of unlimited debate is very strong. It was not ...

USA PATRIOT Act

(Encyclopedia)USA PATRIOT Act [Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorists], 2001, U.S. federal law intended to give federal authorities increased ...

Powell, Colin Luther

(Encyclopedia)Powell, Colin Luther, 1937–2021, U.S. army general and government official, b. New York City, grad., City College (B.S., 1958); George Washington Univ...

Stevens, Thaddeus

(Encyclopedia)Stevens, Thaddeus, 1792–1868, U.S. Representative from Pennsylvania (1849–53, 1859–68), b. Danville, Vt. He taught in an academy at York, Pa., studied law, and was admitted to the bar in Marylan...

calculator

(Encyclopedia)calculator or calculating machine, device for performing numerical computations; it may be mechanical, electromechanical, or electronic. The electronic computer is also a calculator but performs other...

monopoly

(Encyclopedia)monopoly mənōpˈəlē [key], market condition in which there is only one seller of a certain commodity; by virtue of the long-run control over supply, such a seller is able to exert nearly total con...

Anthony Rodney, Walter

(Encyclopedia)Rodney, Walter, 1942–1980, Scholar and revolutionary, b. Georgetown, British Guiana. Ph.D. School of African and Oriental Studies, 1966. A Pan-African...

Browse by Subject