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 :. | Portrait of Ginerva de'Benci-u | The Baptism of Christ | Horses with horsemen | The Madonna of the Carnation | Madonna of the Rocks |
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Colin Campbell Cooper
1856-1937 Colin Campbell Cooper Galleries Cooper was born in Philadelphia, Pennsylvania to Dr. Colin Campbell Cooper and Emily William Cooper. He studied art at the Pennsylvania Academy of the Fine Arts under Thomas Eakins, and at Acad??mie Julian in Paris. Back in Philadelphia, he taught watercolor classes at the Drexel Institute of Art, Science and Industry (now Drexel University). In 1897 he married renowned artist Emma Lampert, and the next year they moved to New York City, where he began work on his famous skyscraper paintings. He travelled extensively, sketching and painting scenes of Europe, Asia, and the United States in watercolors and oils. He and his wife were on the RMS Carpathia and assisted in the rescue of the survivors of the Titanic. Several of his paintings document the rescue. In 1912, Cooper was elected to a prestigious membership in the National Academy of Design. Cooper exhibited in San Francisco's Panama-Pacific Exposition of 1915, winning the Gold Medal for oil and the Silver Medal for watercolor. He also participated in the Panama-California Exposition in San Diego. In 1920 his wife Emma died. He moved to Santa Barbara, California in 1921 and became dean of the School of Painting at the Santa Barbara Community School of Arts. He married his second wife, Marie Frehsee, in 1927. Cooper died in Santa Barbara in 1937.