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Bruno, Giordano

(Encyclopedia)Bruno, Giordano jōrdäˈnō bro͞oˈnō [key], 1548–1600, Italian philosopher, b. Nola. The son of a professional soldier, he entered the Dominican order early in his youth and was ordained a pries...

pneumatic tool

(Encyclopedia)pneumatic tool no͝omătˈĭk [key], instrument activated by air pressure. Pneumatic tools are designed around three basic devices: the air cylinder, the vane motor, and the sprayer. The air cylinder ...

Miller, Arthur

(Encyclopedia)Miller, Arthur, 1915–2005, American dramatist, b. New York City, grad. Univ. of Michigan, 1938. One of America's most distinguished playwrights, he has been hailed as the finest realist of the 20th-...

More, Sir Thomas

(Encyclopedia)More, Sir Thomas (Saint Thomas More), 1478–1535, English statesman and author of Utopia, celebrated as a martyr in the Roman Catholic Church. He received a Latin education in the household of Cardin...

cubism

(Encyclopedia)cubism, art movement, primarily in painting, originating in Paris c.1907. In painting the several sources of cubist inspiration included the later work of Cézanne; the geometric forms and compresse...

Khmer Empire

(Encyclopedia)Khmer Empire kəmĕrˈ [key], ancient kingdom of SE Asia. In the 6th cent. the Cambodians, or Khmers, established an empire roughly corresponding to modern Cambodia and Laos. Divided during the 8th ce...

Whittier, John Greenleaf

(Encyclopedia)Whittier, John Greenleaf hwĭtˈēər [key], 1807–92, American Quaker poet and reformer, b. near Haverhill, Mass. Whittier was a pioneer in regional literature as well as a crusader for many humanit...

cellular telephone

(Encyclopedia)cellular telephone or cellular radio, telecommunications system in which a portable or mobile radio transmitter and receiver, or “cellphone,” is linked via microwave radio frequencies to base tran...

brake, in technology

(Encyclopedia)CE5 Shoe brake CE5 Disk brake brake, in technology, device to slow or stop the motion of a mechanism or vehicle. The vacuum brake system, or vacuum brake, depends upon the use of a vacuum to ...

energy, sources of

(Encyclopedia)energy, sources of, origins of the power used for transportation, for heat and light in dwelling and working areas, and for the manufacture of goods of all kinds, among other applications. The develop...