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wave, in the earth sciences

(Encyclopedia) CE5 A. Diagram of wave: Wave travels one wavelength during one period B. Diagram of wave: Phase relationships wave, in oceanography, an oscillating movement up and down, of a body…

children's book illustration

(Encyclopedia) children's book illustration, any type of picture or decorative work produced for books specifically intended for a youthful audience. During the 1960s a number of seldom-used…

Timeline: Nelson Mandela

Here are some key moments in the life of Nelson Mandela. by Jennie Wood 1918 1952 1968 1980 1994 2001 2013…

Lincoln Center for the Performing Arts

(Encyclopedia) Lincoln Center for the Performing Arts, in central Manhattan, New York City, between 62d and 66th streets W of Broadway. Lincoln Center is both a complex of buildings and the arts…

Leopold I, king of the Belgians

(Encyclopedia) Leopold I, 1790–1865, king of the Belgians (1831–65); youngest son of Francis Frederick, duke of Saxe-Coburg-Saalfeld. After serving as a page at the court of Napoleon I and as a…