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 :. | Portrait | Madonna Litta (detail sdg | Study fur the Trivulzio-monument | Mona Lisa | Madonna with the Yarnwinder ty |
Related Artists:
Bernhard Gutmann
German (Resident in U.S) 1869-1936
maria rohl
Maria Christina Röhl, född i Stockholm den 26 juli 1801, död i Klara församling, Stockholm den 5 juli 1875, var en svensk porträttmålare som avbildade ett flertal samtida kända personer. Medlem i konstakademien (1843) och hovleverantör. Hennes tavlor hänger bland annat på Nationalmuseum i Stockholm. En samling av 1800 porträtt finns på Kungliga Biblioteket. Maria Röhl växte upp i en rik familj, men då hon blev föräldralös 1822 drabbades hon av fattigdom. Hon tänkte först bli guvernant, men professorn och kopparstickaren Christian Forsell undervisade henne då i teckning; hon hade redan tidigare undervisats av målaren Alexander Hambr??, och fick nu lära sig att utföra snabba och realistiska porträtt i blyerts; hon arbetade i blyerts och krita i svartvitt. Hon bodde hos familjen Forsell, där hon först avbildade familjens vänner och sedan, då det hade blivit modernt att låta avbilda sig av "mamsell Röhl", försörjde hon sig på detta i trettio år. Hon utnämndes till kunglig hovmålare 1843, studerade 1843-1846 under Leon Cogniet vid Franska konstakademien i Paris och hade sedan en atelj?? i Brunkebergs hotell i Stockholm. Fotografikonsten blev en svår konkurrent under hennes sista år. Även systern Eva Röhl (1810-96) uppges ha haft viss konstärlig begåvning.
HONDECOETER, Melchior d
Dutch Baroque Era Painter, 1636-1695 Dutch animal painter. His grandfather, Gillis d'Hondecoeter (d. 1638) and his father, Gysbert d'Hondecoeter (1604?C1653), were landscape and animal painters. After four years at The Hague, where he painted The Menagerie of William III at Loo, Melchior settled in Amsterdam. He painted all forms of animal life, but is best known for his depiction of birds and fowl, in which he has few equals. Representative works, executed in a smooth, precise style, include the Dead Cock