Italian High Renaissance Painter and Inventor, 1452-1519 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 :. | Study of an old man | The adoration of the Konige | The muscles of arm, shoulder and neck | You branching of the Blutgefabe, anatomical figure with heart kidneys and Blutgefaben | The Annunciation |
Related Artists:
Orlando Norie
British, 1832-1901
Charles Hawthorne
1872-1930 Charles Webster Hawthorne (January 8, 1872 ?C November 29, 1930) was an American portrait and genre painter and a noted teacher who founded the Cape Cod School of Art in 1899. He was born in Maine, started as an office-boy in a stained-glass factory in New York, studied at night school and with Henry Siddons Mowbray and William Merritt Chase, and abroad in both Holland and Italy. When he was eighteen, Hawthorne went to New York and studied painting at the National Academy of Design and the Art Students League. Among his teachers were Frank Vincent DuMond and George de Forest Brush. But Hawthorne declared that the most dominant influence in his career was William Merritt Chase, with whom he worked as both a pupil and assistant. Both men were naturally talented teachers and figurative painters who were drawn to rich color and the lusciousness of oil paint as a medium. Chase passed on a Munich tradition of tone values and tone painting, and Hawthorne learned all he could. While studying abroad in Holland as Chase's assistant, Hawthorne was influenced to start his own school of art. His winters were spent in Paris and New York City, his summers at Provincetown, Massachusetts, the site of his school. While in Paris Hawthorne became a full member of the French Soci??t?? Nationale des Beaux-Arts in 1917.
HEYDEN, Jan van der
Dutch Baroque Era Painter, 1637-1712 Dutch painter, draughtsman, printmaker and inventor. In 1650 he moved to Amsterdam with his family; his father, a Mennonite, who had pursued various occupations rather unsuccessfully, died that year. Jan's artistic training may have begun with drawing lessons in the studio of a relative, perhaps his eldest brother, Goris van der Heyden, who made and sold mirrors; Jan may also have studied the reverse technique of glass painting with an artist in Gorinchem. Painting occupied relatively little of his time, however, although he continued to pursue it throughout his long life. His prosperity was mainly due to his work as an inventor, engineer and municipal official. He designed and implemented a comprehensive street-lighting scheme for Amsterdam, which lasted from 1669 until 1840 and was adopted as a model by many other towns in the Netherlands and abroad. In 1672,