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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 techniques were introd...

celestial mechanics

(Encyclopedia)celestial mechanics, the study of the motions of astronomical bodies as they move under the influence of their mutual gravitation. Celestial mechanics analyzes the orbital motions of planets, dwarf pl...

Gaspé, Philippe Aubert de

(Encyclopedia)Gaspé, Philippe Aubert de fēlēpˈ ōbĕrˈ də gäspāˈ [key], 1786–1871, French Canadian author. He was high sheriff of Quebec for several years. His Les Anciens Canadiens (1863, tr. 1864, 1890...

Tallemant des Réaux, Gédéon

(Encyclopedia)Tallemant des Réaux, Gédéon zhādāôNˈ täləmäNˈ dā rāōˈ [key], 1619–92, French writer. His one great work is a series of brief anecdotal portraits of persons prominent in the Paris of h...

Calpurnia

(Encyclopedia)Calpurnia kălpûrˈnēə [key], d. after 44 b.c., Roman matron. The daughter of Lucius Calpurnicus Piso Caesoninus (see under Piso, family), she was married to Julius Caesar in 59 b.c. She was loyal ...

Caldecott, Randolph

(Encyclopedia)Caldecott, Randolph kôlˈdəkət [key], 1846–86, one of the most popular late 19th-century English book illustrators. Born in Chester, he moved (1872) to London, where he began publishing illustrat...

Empedocles

(Encyclopedia)Empedocles ĕmpĕdˈəklēz [key], c.495–c.435 b.c., Greek philosopher, b. Acragas (present Agrigento), Sicily. Leader of the democratic faction in his native city, he was offered the crown, which h...

frequency

(Encyclopedia)frequency: see harmonic motion; wave. ...

Madrid, city, Spain

(Encyclopedia)Madrid mədrĭdˈ, Span. mäᵺhrēᵺˈ [key], city (1990 pop. 3,120,732), capital of Spain and of the autonomous community and prov. of Madrid, central Spain, on the Manzanares River. The newest of ...

Hearst, William Randolph

(Encyclopedia)Hearst, William Randolph, 1863–1951, American journalist and publisher, b. San Francisco. A flamboyant, highly controversial figure, Hearst was nonetheless an intelligent and extremely competent new...