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Agricola, Georgius

(Encyclopedia)Agricola, Georgius gāˈôrk bouˈər [key], 1494–1555, German physician and scientist, known as the father of mineralogy. He was a pioneer in physical geology and the first to classify minerals sci...

Berners, Juliana

(Encyclopedia)Berners, Bernes, or Barnes, Juliana bŭrˈnərz, bärnz [key], supposed early 15th-century author of a popular verse treatise on hunting. The treatise is included in The Book of St. Albans (1486), a c...

Small, Albion Woodbury

(Encyclopedia)Small, Albion Woodbury, 1854–1926, American sociologist, b. Buckfield, Maine, grad. Colby College, 1876, and further educated in Germany. He was made president of Colby in 1889, but left it in 1892 ...

Van Vleck, John Hasbrouck

(Encyclopedia)Van Vleck, John Hasbrouck, 1899–1980, American physicist, b. Middletown, Conn., Ph.D. Harvard, 1922. As a professor at Harvard, Van Vleck developed fundamental theories on the quantum mechanics of m...

triathlon

(Encyclopedia)triathlon, athletic event made up of three contests. Since the 1970s the term has come to mean especially a race combining swimming, bicycling, and running. A notable example is Hawaii's Ironman Triat...

Seti II

(Encyclopedia)Seti II sēˈtī, sāˈtē [key], d. 1205 b.c., king of ancient Egypt, of the XIX dynasty. He was one of the kings who reigned briefly after Merneptah, and seems to have ruled for about four years. Af...

Ceres, in Roman religion and mythology

(Encyclopedia)Ceres sîrˈēz [key], in Roman religion and mythology, goddess of grain; daughter of Saturn and Ops. She was identified by the Romans with the Greek Demeter. Her worship was connected with that of th...

Radetzky, Joseph, Graf Radetzky de Radetz

(Encyclopedia)Radetzky or Radetzki, Joseph, Graf Radetzky de Radetz yōˈzĕf rädĕtˈskē gräf rädĕtˈskē də räˈdĕts [key], 1766–1858, Austrian field marshal. In the war of 1848–49 against Sardinia (s...

electrodynamics

(Encyclopedia)electrodynamics, study of phenomena associated with charged bodies in motion and varying electric and magnetic fields (see charge; electricity); since a moving charge produces a magnetic field, electr...

audiovisual education

(Encyclopedia)audiovisual education, educational instruction by means of materials that use the senses of sight and hearing to stimulate and enrich learning experiences. The successful use of motion pictures and ot...