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Alexander John Forsyth
Alexander John Forsyth , 1769-1843, Scottish inventor. He invented in 1807 the first workable percussion cap for the ignition of gunpowder in firearms. Forsyth refused an offer from Napoleon of £20,000 for the secret and was later pensioned by the British government.
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Luca Cambiaso
Luca Cambiaso , 1527-85, leading Italian painter and sculptor of the Genoese school, known also as Luchetto da Genova; son and pupil of Giovanni Cambiaso, a fresco painter. His inventiveness and facile execution in both oil and fresco won him early recognition. His best works are in churches and pal...
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Ludwig von Siegen
Ludwig von Siegen , c.1609-1680, German engraver, b. Holland, educated in Germany. He is said to have invented (c.1640) the mezzotint process of engraving. Among his seven known plates are portraits of Amalia Elisabeth of Hesse and of William II, prince of Orange, and his wife, Mary. His new method ...
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Felix Octavius Carr Darley
Felix Octavius Carr Darley 1822-88, American illustrator, lithographer, and painter, b. Philadelphia. He is best known for his pen-and-ink drawings, which, for their inventiveness, versatility, vigorous style, and technical facility, placed him in the front rank of American illustrators. He illustr...
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Pausias
Pausias , fl. 1st half of 4th cent. BC, Greek painter. He was celebrated for his decorative paintings, particularly in encaustic , a method which he is said to have invented. His most famous single work, A Sacrifice, containing an admirably foreshortened and modeled figure of a bull, was preserve...
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Antoine Joseph Wiertz
Antoine Joseph Wiertz , 1806-65, Belgian historical painter. He enjoyed such prestige that the government built him a studio in Brussels, now the Wiertz Museum. He delighted in painting complicated, philosophical subjects and scenes from ancient history. Wiertz invented a type of mat painting and wr...
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Johann Gutenberg
Johann Gutenberg , c.1397-1468, German inventor and printer, long credited with the invention of a method of printing from movable type, including the use of metal molds and alloys, a special press, and oil-based inks: a method that, with refinements and increased mechanization, remained the princip...
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stone age
stone age Used to describe the period starting with the invention of the first computer (1949) up to the mid-1950s....
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Gaudenzio Ferrari
Gaudenzio Ferrari , c.1480-1546, Italian painter, one of the leading representatives of the Lombard school. He worked chiefly in the churches of Varallo (N Piedmont), Vercelli, and Milan and produced many paintings, most of them now in the galleries of Lombardy and Piedmont. At its best his art is c...
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Juan de Valdés Leal
Juan de Valdés Leal , 1622-90, Spanish baroque painter and etcher, active mainly in Seville and Córdoba. He is especially famous for grimly moralizing subjects, as in Allegory of Vanity (Wadsworth Athenaeum, Hartford, Conn.) and Hieroglyphs of Death (Seville). He also executed movi...
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