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 :. | virgin and child with st.anne | The Madonna of the Carnation (detail) dg | Portrait of a Musician dey | The Last Supper | Virgin of the Rocks,completed (mk08) |
Related Artists:
Rowland Lockey
English Baroque Era Painter, ca.1565-1616,was an English painter and goldsmith. The son of Leonard Lockey, a crossbow maker of the parish of St Bride's, Fleet Street, London, Lockey was apprenticed to Queen Elizabeth's miniaturist and goldsmith Nicholas Hilliard for eight years beginning Michaelmas 1581[1] and was made a freeman or master of the Worshipful Company of Goldsmiths by 1600. He worked mainly as a copyist of earlier portraits to make up sets of oil paintings for the fashionable long galleries of great houses, but signed or documented portrait miniatures on vellum and a signed title page engraving for the 1602 Bishops' Bible also survive.
Henry Inman
American Painter, 1801-1846,was an American portrait, genre, and landscape painter.He was born at Utica, N. Y., October 20, 1801, and was for seven years an apprentice pupil of John Wesley Jarvis in New York City. He was the first vice president of the National Academy of Design. He excelled in portrait painting, but was less careful in genre pictures. Among his landscapes are "Rydal Falls, England," "October Afternoon," and "Ruins of Brambletye." His genre subjects include "Rip Van Winkle," "The News Boy," and "Boyhood of Washington;" his portraits, those of Henry Rutgers and Fitz-Greene Halleck in the New York Historical Society, of Bishop White, Chief Justices Marshall and Nelson, Jacob Barker, William Wirt, Audubon, DeWitt Clinton, Martin Van Buren, and William H. Seward.
carl curman
född 8 mars 1833, död 1913, var en svensk vetenskapsman, läkare och professor, som även är känd för de många fotografier