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Bettendorf

(Encyclopedia) Bettendorf Bettendorf bĕtˈəndocirc;rfˌ [key], city (2020 pop. 39,102), Scott co., E Iowa, on the…

catchment area

(Encyclopedia) catchment area or drainage basin, area drained by a stream or other body of water. The limits of a given catchment area are the heights of land—often called drainage divides, or…

marble

(Encyclopedia) marble, metamorphic rock composed wholly or in large part of calcite or dolomite crystals, the crystalline texture being the result of metamorphism of limestone by heat and pressure.…

Marsalis, Wynton

(Encyclopedia) Marsalis, WyntonMarsalis, Wyntonmärsălˈĭs [key], 1961–, American trumpeter, bandleader, and composer, b. New Orleans. Born into a distinguished jazz family, he studied classical music…

Shankar, Ravi

(Encyclopedia) Shankar, Ravi (Robindra Shankar Chowdhury), 1920–2012, Indian sitarist and composer, b. Varanasi. He was the first Indian instrumentalist to attain an international reputation and is…

paleontology

(Encyclopedia) paleontologypaleontologypāˌlēəntŏlˈəjē [key] [Gr.,= study of early beings], science of the life of past geologic periods based on fossil remains. Knowledge of the existence of fossils…

Tonti, Henri de

(Encyclopedia) Tonti or Tonty, Henri deTonti or Tonty, Henri deboth: äNrēˈ də tôNtēˈ [key], c.1650–1704, French explorer in North America, b. Italy. Serving in the French army, he lost a hand in…

Beach Boys, The

(Encyclopedia) Beach Boys, The, American rock music band formed in 1961 by brothers Brian Wilson, 1942–, Dennis Wilson, 1944–83, and Carl…

cave

(Encyclopedia) cave, a cavity in the earth's surface usually large enough for a person to enter. Caves may be formed by the chemical and mechanical action of a stream upon soluble or soft rock, of…

dam

(Encyclopedia) dam, barrier, commonly across a watercourse, to hold back water, often forming a reservoir or lake; dams are also sometimes used to control or contain rockslides, mudflows, and the…