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 :. | Leonardo there Vinci and Andrea del Verrocchio, madonna with the child and angels | The Virgin and Child with St Anne (detail) s | Unfinished painting of St. Jerome in the Wilderness | Hi Hieronymus | Profile one with book leaves gekroten of old man |
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George Samuel Elgood,RI
1851-1943
MIGNARD, Pierre
French Baroque Era Painter , b. 1612, Troyes, d. 1695, Paris called "Le Romain" to distinguish him from his brother Nicolas, was a French painter. He was born at Troyes, and came of a family of artists; he also needs to be distinguished from his nephew Pierre (1640-1725), often called "Pierre II" or "Le Chevalier". In 1630 he left the studio of Simon Vouet for Italy, where he spent twenty-two years, and made a reputation which brought him a summons to Paris. Successful with his portrait of the king, and in favour with the court, Mignard pitted himself against Le Brun, declined to enter the Academy of which he was the head, and made himself the centre of opposition to its authority. The history of this struggle is most important, because it was identical, as long as it lasted, with that between the old gilds of France and the new body which Colbert, for political reasons, was determined to support. Portrait of Louise de Kerouaille, Duchess of PortsmouthShut out, in spite of the deserved success of his decorations of the cupola of Val de Grace (1664), from any great share in those public works, the control of which was the attribute of the new Academy, Mignard was chiefly active in portraiture. Turenne, Moliere, Bossuet, Maintenon (Louvre), La Valliere, Sevigne, Montespan, Descartes (Castle Howard), all the beauties and celebrities of his day, sat to him. His readiness and skill, his happy instinct for grace of arrangement,
Friedrich Carl Groger
(14 October 1766, Plön - 9 November 1838, Hamburg) was a north-German portrait painter and lithographer. One of the most respected portraitists of his time in northern Germany, his works are to be found in several museums, including the Hamburger Kunsthalle, as well as in north German, Holstein and Danish private collections. Gröger was the son of a tailor in Plön, where he grew up in modest circumstances. His parents wanted him to become a tailor or wood turner and opposed his early artistic activities. He was largely self taught in painting, though he had some contact in Lebeck with Tischbein and in 1785 was in the city of Lebeck, where he met Heinrich Jacob Aldenrath, his first, loyalest and lifelong friend - the Grögersweg in Hamburg-Barmbek named after him links the Tischbeinstraße with the Aldenrathsweg. From 1789 he studied at Berlin's Akademie der Kenste. He and Aldenrath then went together to Hamburg, then on a joint study trip to Dresden and Paris, then back to Lebeck, where he worked until 1807. They then alternated between Hamburg, Copenhagen, Kiel and Lebeck, before finally settling in Hamburg in 1814. In 1792 Gröger was made an honorary member of the Gesellschaft zur Beförderung gemeinnetziger Tätigkeit‎ in Lebeck. Gröger developed from a miniature painter into a portrait painter, who towards the end of his life preferred three quarter bust portraits. Aldenrath took over the miniature painting side of their joint business. After lithography developed in northern Germany, they both worked in this medium individually as well as jointly under the business name Firma Gröger & Aldenrath.