Columbia Encyclopedia

Search results

500 results found

Halley, Edmond

(Encyclopedia)Halley, Edmond hălˈē, hôˈlē [key], 1656–1742, English astronomer and mathematician. He is particularly noted as the first astronomer to predict the return of a comet and the first to point out...

Spectator

(Encyclopedia)Spectator, English daily periodical published jointly by Joseph Addison and Richard Steele with occasional contributions from other writers. It succeeded the Tatler, a periodical begun by Steele on Ap...

Kitchen Cabinet

(Encyclopedia)Kitchen Cabinet, in U.S. history, popular name for the group of intimate, unofficial advisers of President Jackson. Early in his administration Jackson abandoned official cabinet meetings and used hea...

robot

(Encyclopedia)robot or automaton ôtämˈətänˌ [key] mechanical device designed to perform the work generally done by a human being. The Czech dramatist Karel Čapek popularized the expression [Czech,=compulsory...

calculus of variations

(Encyclopedia)calculus of variations, branch of mathematics concerned with finding maximum or minimum conditions for a relationship between two or more variables that depends not only on the variables themselves, a...

Brunelleschi, Filippo

(Encyclopedia)Brunelleschi, Filippo fēlēpˈpō bro͞onĕl-lĕsˈkē [key], 1377–1446, first great architect of the Italian Renaissance, a Florentine by birth. Trained as sculptor and goldsmith, he designed a tr...

Soyer

(Encyclopedia)Soyer, three brothers, American painters, emigrated with their family from Russia in 1912. Two were twins, Raphael Soyer, 1899–1987, and Moses Soyer, 1899–1974, b. Borisoglebsk. They settled in Ne...

Leopold II, Holy Roman emperor, king of Bohemia and Hungary

(Encyclopedia)Leopold II, 1747–92, Holy Roman emperor (1790–92), king of Bohemia and Hungary (1790–92), as Leopold I grand duke of Tuscany (1765–90), third son of Maria Theresa. Succeeding his father, Holy ...

Constitution, ship

(Encyclopedia)Constitution, U.S. 44-gun frigate, nicknamed Old Ironsides. It is perhaps the most famous vessel in the history of the U.S. navy. Authorized by Congress in 1794, the ship was launched in 1797 and was ...

Guggenheim

(Encyclopedia)Guggenheim go͝ogˈənhīm [key], family of American industrialists and philanthropists. Meyer Guggenheim, 1828–1905, b. Aargau canton, Switzerland, emigrated (1847) to the United States, prospered ...