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Manning, Henry Edward

(Encyclopedia)Manning, Henry Edward, 1808–92, English churchman, cardinal of the Roman Catholic Church. Ordained a Catholic priest, Manning became a celebrated confessor, an ardent advocate of prison reform, a...

Waziristan

(Encyclopedia)Waziristan wəzēˈrĭstänˌ [key], region (1981 est. pop. 545,000), 4,473 sq mi (11,585 sq km), Khyber Pakhtunkhwa (formerly North-West Frontier Province), Pakistan, on the Afghanistan border. An ex...

body temperature

(Encyclopedia)body temperature, internal temperature of a living organism. Mammals and birds are termed warm-blooded, or homeothermic, i.e., they are able to maintain a relatively constant inner body temperature, w...

Ptolemaic system

(Encyclopedia)Ptolemaic system tŏlˌəmāˈĭk [key], historically the most influential of the geocentric cosmological theories, i.e., theories that placed the earth motionless at the center of the universe with a...

Rilke, Rainer Maria

(Encyclopedia)Rilke, Rainer Maria rīˈnər märēˈä rĭlˈkə [key], 1875–1926, German poet, b. Prague, the greatest lyric poet of modern Germany. Rilke's first book of poetry, Leben und Lieder [life and s...

sulfuric acid

(Encyclopedia)sulfuric acid, chemical compound, H2SO4, colorless, odorless, extremely corrosive, oily liquid. It is sometimes called oil of vitriol. Although sulfuric acid is now one of the most widely used c...

thermodynamics

(Encyclopedia)thermodynamics, branch of science concerned with the nature of heat and its conversion to mechanical, electric, and chemical energy. Historically, it grew out of efforts to construct more efficient he...

electric circuit

(Encyclopedia)CE5 A. Series circuit: Current is the same through each resistance; voltage divides in direct proportion to each resistance. B. Parallel circuit: Voltage drop is the same over each resistance; curr...

electromagnetic radiation

(Encyclopedia)CE5 Electromagnetic spectrum electromagnetic radiation, energy radiated in the form of a wave as a result of the motion of electric charges. A moving charge gives rise to a magnetic field, and if ...

Lippi

(Encyclopedia)Lippi lēpˈpē [key], name of two celebrated Italian painters of the 15th cent., Fra Filippo Lippi and his son, Filippino Lippi. Filippino Lippi,Filippino Lippi, c.1457–1504, son of Fra Filippo a...