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tornado

(Encyclopedia)tornado, dark, funnel-shaped cloud containing violently rotating air that develops below a heavy cumulonimbus cloud mass and extends toward the earth. The funnel twists about, rises and falls, and whe...

MacMillan, Donald Baxter

(Encyclopedia)MacMillan, Donald Baxter, 1874–1970, American arctic explorer, b. Provincetown, Mass., grad. Bowdoin College, 1898, and studied at Harvard. After a decade of teaching, he went on the expedition (190...

Murray, Albert Lee

(Encyclopedia)Murray, Albert Lee, 1916–2013, American essayist, novelist, and critic, b. Nokomis, Ala., grad. Tuskegee Institute (now Tuskegee Univ.; B.S., 1939) and New York Univ. (M.A., 1948). Murray enlisted i...

lithium

(Encyclopedia)lithium lĭthˈēəm [key] [Gr.,=stone], metallic chemical element; symbol Li; at. no. 3; interval in which at. wt. ranges 6.938–6.997; m.p. about 180.54℃; b.p. about 1,342℃; sp. gr. .534 at 20�...

Hopkins, Samuel

(Encyclopedia)Hopkins, Samuel, 1721–1803, American clergyman and theologian, b. Waterbury, Conn., grad. Yale, 1741. He was a leading disciple of Jonathan Edwards, whose theology was the foundation for his own sys...

Dwight, Theodore

(Encyclopedia)Dwight, Theodore, 1764–1846, American author, b. Northampton, Mass.; brother of Timothy Dwight and grandson of Jonathan Edwards. A leader of the Federalist party in New England, he became famous for...

Wilbur, Ray Lyman

(Encyclopedia)Wilbur, Ray Lyman, 1875–1949, American public official and educator, b. Boonesboro, Iowa, grad. Stanford (B.A., 1896; M.A., 1897) and Cooper Medical College, San Francisco, 1899. After studying medi...

pump

(Encyclopedia)pump, device to lift, transfer, or increase the pressure of a fluid (gas or liquid) or to create a vacuum in an enclosed space by the removal of a gas (see vacuum pumps under vacuum). The centrifugal ...

Dickey, James

(Encyclopedia)Dickey, James, 1923–97, American poet and novelist, b. Atlanta. After serving in the air force during World War II, he attended Vanderbilt Univ., graduating in 1946. He was an English teacher and an...

Stewart, Jimmy

(Encyclopedia)Stewart, Jimmy (James Maitland Stewart), 1908–97, American actor, b. Indiana, Pa. He began his film career in 1935 and soon gained popularity for his lanky good looks, slow drawl and shy, homespun c...