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 :. | Female head (La Scapigliata) wt | Profile of a man | Annunciation (detail) fg47 | Last Supper (mk08) | Study fur the Trivulzio-monument |
Related Artists:
Carl Ludwig Christinec
1732/3 - 1792/94
Creator:Edmond Dyonnet
He was born on 25 June 1859 in Crest (Drôme), France, from the marriage of Ulysses-Alexandre Dyonnet, industrialist, and Goullioud Albine. The real family name is Guyonnet de Pivat but due to an error of births during the French Revolution, the surname became Dyonnet. Edmond died in Montreal on 7 July 1954, at age 95. He was buried with his family in the cemetery of Notre-Dame-des-Neiges, in Montreal. Edmond had two younger sisters, Emma Dyonnet, wife Lorin (1866-1947) and Clemence Dyonnet, wife Chabot (18? -1905). Ulysses, the father of Edmond, had an older brother Leon Dyonnet Goullioud who married Helen, the sister of Albine. Leon Dyonnet made a fortune in corsets for women in association with Amyot from 1886 to 1891 and set up the Dominion Corset company, rue de la Couronne in Quebec City. The couple had a daughter artist, cousin of Edmond Dyonnet: Eugenie Dyonnet, who immigrated to Canada in 1872 and died in 1875 in Montreal. Edmond Dyonnet was born in Drôme in 1859, and at 9 years old, he followed his father and migrated to Italy, he continued his primary education in Turin, from 1868 to 1873, in municipal schools and then returned to France with his family in the Drôme. He studies at Crest high school from 1873 to 1875. His father Ulysses met in Paris the brother of Judge George Baby who convinced him to emigrate to Quebec.
Carl Johann Lasch
painted Portrait of August Bolten in 1883