Leonardo Da Vinci
Italian High Renaissance Painter and Inventor, 1452-1519
Florentine Renaissance man, genius, artist in all media, architect, military engineer. Possibly the most brilliantly creative man in European history, he advertised himself, first of all, as a military engineer. In a famous letter dated about 1481 to Ludovico Sforza, of which a copy survives in the Codice Atlantico in Milan, Leonardo asks for employment in that capacity. He had plans for bridges, very light and strong, and plans for destroying those of the enemy. He knew how to cut off water to besieged fortifications, and how to construct bridges, mantlets, scaling ladders, and other instruments. He designed cannon, very convenient and easy of transport, designed to fire small stones, almost in the manner of hail??grape- or case-shot (see ammunition, artillery). He offered cannon of very beautiful and useful shapes, quite different from those in common use and, where it is not possible to employ cannon ?? catapults, mangonels and trabocchi and other engines of wonderful efficacy not in general use. And he said he made armoured cars, safe and unassailable, which will enter the serried ranks of the enemy with their artillery ?? and behind them the infantry will be able to follow quite unharmed, and without any opposition. He also offered to design ships which can resist the fire of all the heaviest cannon, and powder and smoke.
The large number of surviving drawings and notes on military art show that Leonardo claims were not without foundation, although most date from after the Sforza letter. Most of the drawings, including giant crossbows (see bows), appear to be improvements on existing machines rather than new inventions. One exception is the drawing of a tank dating from 1485-8 now in the British Museum??a flattened cone, propelled from inside by crankshafts, firing guns. Another design in the British Museum, for a machine with scythes revolving in the horizontal plane, dismembering bodies as it goes, is gruesomely fanciful.
Most of the other drawings are in the Codice Atlantico in Milan but some are in the Royal Libraries at Windsor and Turin, in Venice, or the Louvre and the École des Beaux Arts in Paris. Two ingenious machines for continuously firing arrows, machine-gun style, powered by a treadmill are shown in the Codice Atlantico. A number of other sketches of bridges, water pumps, and canals could be for military or civil purposes: dual use technology.
Leonardo lived at a time when the first artillery fortifications were appearing and the Codice Atlantico contains sketches of ingenious fortifications combining bastions, round towers, and truncated cones. Models constructed from the drawings and photographed in Calvi works reveal forts which would have looked strikingly modern in the 19th century, and might even feature in science fiction films today. On 18 August 1502 Cesare Borgia appointed Leonardo as his Military Engineer General, although no known building by Leonardo exists.
Leonardo was also fascinated by flight. Thirteen pages with drawings for man-powered aeroplanes survive and there is one design for a helicoidal helicopter. Leonardo later realized the inadequacy of the power a man could generate and turned his attention to aerofoils. Had his enormous abilities been concentrated on one thing, he might have invented the modern glider. Related Paintings of Leonardo Da Vinci :. | Reverse side of the portrait of Ginevra de' Benci | Saint John the Baptist | Detail of Madonna of the Rocks | Regisol | The Last Supper-l | Related Artists: Emmanuel Herman Joseph Walletpainted Fredegonde distribuant des poignards a deux assassins in 19th century
John Mix StanleyA famous painter of Indians and Indian scen .
American , 1814-1872
American , 1814-1872,was an American painter of landscapes, portraits and Native American life. He was born in Canandaigua, New York and orphaned at the age of 12. At age 14, Stanley became an apprentice to a coach maker. Looking for better work, he moved to west in 1832 and became a painter of signs and portraits. In spring 1843 Stanley accompanied the party of Indian agent Pierce M. Butler to the Tehuacana Creek Council. At the outbreak of the Mexican War in 1845, John Mix Stanley joined Colonel Stephen Watts Kearney's expedition to California and produced many sketches and paintings of the campaign. He traveled to Hawaii in 1848 and spent a year painting portraits of members of the royal family. He traveled across the Isthmus of Panama in 1853. He also painted Comanche warriors in their natural environment. He moved to Detroit in 1864 and remained there for the rest of his life. Stanley helped to found a forerunner of the Detroit Institute of Arts and to incorporate the National Gallery and School of Arts. Stanley's primary interests and sympathies were with the Indians. The Smithsonian exhibited his pictures, but Congress never appropriated monies for them. More than 200 of his works were destroyed in the Smithsonian fire of 1865. SIRANI, ElisabettaItalian Baroque Era Painter, 1638-1665
Italian painter. She was the daughter of Giovanni Andrea Sirani (1610-70), who had been Guido Reni's principal assistant. Encouraged by Carlo Malvasia, her mentor and eventual biographer, she was painting professionally by the age of 17. Her prolific talent, as well as her reputed beauty and modesty, soon brought her European renown. The details of her training are unclear, but as a woman she would not have had access to an academy and (like many other professional women painters prior to the 20th century) she was probably taught by her father. Her sisters Anna Maria (1645-1715) and Barbara (alive in 1678) were also practising artists and Elisabetta herself is known to have had female students. As women, they could not undertake any formal study of the male nude, and Sirani's weakness in depicting male anatomy is sometimes clearly detectable in her work Sirani's drawings employ a highly individual pen-and-wash method, eschewing outline and employing quick, blunt strokes of barely dilute ink to create striking chiaroscuro effects
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