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alpha particle

(Encyclopedia)alpha particle, one of the three types of radiation resulting from natural radioactivity. Alpha radiation (or alpha rays) was distinguished and named by E. R. Rutherford in 1909, who found by measurin...

Duncan, Robert

(Encyclopedia)Duncan, Robert, 1919–88, American poet, b. Oakland, Calif. He was a leading poet of the San Francisco renaissance during the late 1940s. His lyric style contains private allusions, gaps in syntax, a...

Dean, Jerome Herman

(Encyclopedia)Dean, Jerome Herman (Dizzy Dean), 1911–74, American baseball player, b. Lucas, Ark. His name was originally Jay Hanna Dean. A colorful right-handed pitcher, Dean performed brilliantly (1930–37) fo...

Chambers, William

(Encyclopedia)Chambers, William, 1800–1883, and Robert Chambers, 1802–71, Scottish authors and publishers. Their firm of W. and R. Chambers is best known for Chambers's Edinburgh Journal, which William started ...

Ellsworth, Elmer Ephraim

(Encyclopedia)Ellsworth, Elmer Ephraim, 1837–61, American Civil War hero, b. near Mechanicville, N.Y. Just before the Civil War he became famous for his Zouave company, which toured the North giving exhibition dr...

Snow, Lorenzo

(Encyclopedia)Snow, Lorenzo, 1814–1901, American Mormon leader, b. Mantua, Ohio, studied at Oberlin College. Entering the Church of Jesus Christ of Latter-day Saints (1836), Snow became an apostle in 1849. Upon h...

Peter, Hugh

(Encyclopedia)Peter or Peters, Hugh, 1598–1660, British Puritan clergyman, educated at Cambridge. He became a priest of the Established Church, but his Puritan doctrines forced him to leave England for Holland c....

Propertius, Sextus

(Encyclopedia)Propertius, Sextus sĕkˈstəs prōpûrˈshəs [key], c.50 b.c.–c.16 b.c., Roman elegiac poet, b. Umbria. He was a member of the circle of Maecenas. A master of the Latin elegy, he wrote with vigor,...

Roscoe, Sir Henry Enfield

(Encyclopedia)Roscoe, Sir Henry Enfield rŏsˈkō [key], 1833–1915, English chemist. He was professor (1857–87) at Owens College, Manchester. He is known for his work, with R. W. Bunsen, in photochemistry and f...

Ramanujan, Srinivasa

(Encyclopedia)Ramanujan, Srinivasa shrēˌnĭväˈsə rämäˈno͝ojən [key], 1889–1920, Indian mathematician. He was a self-taught genius in pure mathematics who made original contributions to function theory, ...