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Demosthenes

(Encyclopedia)Demosthenes dĭmŏsˈthənēz [key], 384?–322 b.c., Greek orator, generally considered the greatest of the Greek orators. He was a pupil of Isaeus, and—although the story of his putting pebbles in...

Hiero I

(Encyclopedia)Hiero I hīˈərō [key], 5th cent. b.c., Greek Sicilian ruler, tyrant of Syracuse (478–467 b.c.). He succeeded his brother Gelon. A noted patron of literature, Hiero had Simonides, Pindar, and Aesc...

Ibycus

(Encyclopedia)Ibycus ĭbˈĭkəs [key], fl. before 500 b.c., Greek lyric poet, b. Rhegium, S Italy. The extant fragments of his work contain the earliest-known example of the triadic choral lyric. He spent some tim...

Diomedes

(Encyclopedia)Diomedes dīˌōmēˈdēz [key], in Greek legend. 1 Son of Tydeus, he was one of the principal Greek warriors in the Trojan War. Previously he had avenged his father's death in the expedition of the E...

Kitt Peak National Observatory

(Encyclopedia)Kitt Peak National Observatory, astronomical observatory located southwest of Tucson, Ariz.; it was founded in 1958 under contract with the National Science Foundation and is administered by the Assoc...

Kepler, Johannes

(Encyclopedia)Kepler, Johannes yōhäˈnəs kĕpˈlər [key], 1571–1630, German astronomer. From his student days at the Univ. of Tübingen, he was influenced by the Copernican teachings. From 1593 to 1598 he was...

Hale, George Ellery

(Encyclopedia)Hale, George Ellery, 1868–1938, American astronomer, b. Chicago, grad. Massachusetts Institute of Technology, 1890. He founded and directed three great observatories (Yerkes, Mt. Wilson, and Palomar...

Sandage, Allan Rex

(Encyclopedia)Sandage, Allan Rex, 1926–2010, American astronomer, b. Iowa City, Iowa, Ph.D. California Institute of Technology, 1953. He was a graduate student under Walter Baade and an assistant to Edwin Hubble....

Celsius temperature scale

(Encyclopedia)Celsius temperature scale sĕlˈsēəs [key], temperature scale according to which the temperature difference between the reference temperatures of the freezing and boiling points of water is divided ...

More, Paul Elmer

(Encyclopedia)More, Paul Elmer, 1864–1937, American critic, educator, and philosopher, b. St. Louis. More taught Sanskrit and classical literature and then was a newspaper editor until 1914, after which he wrote ...