Columbia Encyclopedia

Search results

500 results found

physics

(Encyclopedia)physics, branch of science traditionally defined as the study of matter, energy, and the relation between them; it was called natural philosophy until the late 19th cent. and is still known by this na...

liberalism

(Encyclopedia)liberalism, philosophy or movement that has as its aim the development of individual freedom. Because the concepts of liberty or freedom change in different historical periods the specific programs of...

Leviticus

(Encyclopedia)Leviticus lĭvĭtˈəkəs [key], book of the Bible, 3d of the five books of the Law (the Pentateuch or Torah) ascribed by tradition to Moses. It is in essence a collection of liturgical legislation wi...

Preemption Act

(Encyclopedia)Preemption Act, statute passed (1841) by the U.S. Congress in response to the demands of the Western states that squatters be allowed to preempt lands. Pioneers often settled on public lands before th...

packaging

(Encyclopedia)packaging, containment and packing prior to sale with the primary purpose of facilitating the purchase and use of a product. Before 1800 packaging was restricted almost entirely to containment for shi...

Waldemar I

(Encyclopedia)Waldemar I (Waldemar the Great) wälˈdəmär [key], 1131–82, king of Denmark (1157–82). In 1147, Waldemar, Sweyn III, and Canute (son of Magnus the Strong and grandson of King Niels) each claimed...

Weinberg, Steven

(Encyclopedia)Weinberg, Steven, 1933–, American nuclear physicist, b. New York City, Ph.D. Princeton, 1957. Since 1982 he has been a professor at the Univ. of Texas at Austin, having previously been on the facult...

Ivan III

(Encyclopedia)Ivan III or Ivan the Great, 1440–1505, grand duke of Moscow (1462–1505), creator of the consolidated Muscovite (Russian) state. He subjugated (1478) Great Novgorod, asserted his sway over Vyatka, ...

beta particle

(Encyclopedia)beta particle, one of the three types of radiation resulting from natural radioactivity. Beta radiation (or beta rays) was identified and named by E. Rutherford, who found that it consists of high-spe...

Lansbury, George

(Encyclopedia)Lansbury, George lănzˈbərē [key], 1859–1940, British Labour party leader. During the 1880s he was influenced by Christian socialism, and he later joined (1892) the Social Democratic Federation. ...