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Takemitsu, Toru

(Encyclopedia)Takemitsu, Toru tōˈro͞o täkāˈmĭtso͞o [key], 1930–96, Japanese composer, b. Tokyo. Largely self-taught and particularly influenced by Debussy and Cage, Takemitsu successfully combined serial ...

Burnham, Daniel Hudson

(Encyclopedia)Burnham, Daniel Hudson bûrˈnəm [key], 1846–1912, American architect and city planner b. Henderson, N.Y. He was trained in architects' offices in Chicago. In that city he established (1873) a part...

Laplace, Pierre Simon, marquis de

(Encyclopedia)Laplace, Pierre Simon, marquis de pyĕr sēmôNˈ märkēˈ də läpläsˈ [key], 1749–1827, French astronomer and mathematician. At 18 he went to Paris, proved his gift for mathematical analysis to...

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...

relativity

(Encyclopedia)relativity, physical theory, introduced by Albert Einstein, that discards the concept of absolute motion and instead treats only relative motion between two systems or frames of reference. One consequ...

light

(Encyclopedia)light, visible electromagnetic radiation. Of the entire electromagnetic spectrum, the human eye is sensitive to only a tiny part, the part that is called light. The wavelengths of visible light range ...

Mary of Guise

(Encyclopedia)Mary of Guise gēz [key], 1515–60, queen consort of James V of Scotland and regent for her daughter, Mary Queen of Scots. The daughter of Claude de Lorraine, duc de Guise, she was also known as Mary...

Yosemite National Park

(Encyclopedia)Yosemite National Park yōsĕmˈĭtē [key], 748,436 acres (302,881 hectares), E central Calif.; est. 1890 as a result of the efforts of conservationist John Muir. Located in the Sierra Nevada, it is ...

Bode's law

(Encyclopedia)Bode's law [for J. E. Bode], also known as Titius's law or the Titius-Bode law, empirical relationship between the mean distances of the planets from the sun. If each number in the series 0, 3, 6, 12,...

Clemens, Roger

(Encyclopedia)Clemens, Roger (William Roger Clemens) klĕmˈənz [key], 1962–, American baseball player, b. Dayton, Ohio. Noted for his competitive fire and nicknamed “Roger the Rocket,” Clemens became one of...