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 :. | La Gioconda (The Mona Lisa) | Portrait of a Lady at the Court of Milan (san05) | The Annunciation | Virgin of the Rocks (mk10) | Virgin of the Rocks | Related Artists: William Frederick WellsA landscape painter in watercolor, Wells was the true founder of the Society of Painters in Watercolors in 1804 and its president in 1806-07. He studied under J. J. Barralet and exhibited at the Royal Academy from 1795 to 1804 and at the Watercolor Society to 1813, when he resigned.
William Aiken Walker1839-1921 Wilhelm Ferdinand Bendz(March 20, 1804 - November 14, 1832), Danish genre and portrait painter, is one of the main personages associated with the Golden Age of Danish Painting. He was educated at the Royal Danish Academy of Art (Det Kongelige Danske Kunstakademi) in Copenhagen from 1820 to 1825, winning both silver medals but never the gold prize. He studied under professor Christoffer Wilhelm Eckersberg, but may at the same time have acquired some knowledge of contemporary German painting.
Today he is mainly remembered for his many technically accomplished portraits, though his ambition most of all ran towards a refined fusion of portrait, genre scene and allegorical history painting. His technical virtuosity is particularly visible in his depictions of the play of light cast from an obscured source and the resulting shadows. During his travel to Italy - which also brought him a one-year stay in Munich - he caught a sickness to the lungs and died at the age of 28 in 1832.
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