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 :. | Mona Lisa | Anatomical studies of the basin of the Steibeins and the lower Gliedmaben of a woman and study of the rotation of the arms | The Annunciation | Portrait of Ginevra de Benci | Madonna and Child with a Pomegranate et |
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Pieter Gallis
(1633, Enkhuizen - 1697, Hoorn), was a Dutch Golden Age painter. According to Houbraken, he painted as a hobby, since he earned his living as the director of the local pawn shop (Bank van Lening).He specialized in landscapes, flowers, fruit and other forms of still life. He was a very friendly man, especially to artists and art collectors. He was active in Enkhuizen (and perhaps Amsterdam), in Purmerend from 1679-1683, and in Hoorn from 1683 until his death.
Joris van der Haagen
(ca. 1615 - The Hague, 23 May 1669 (buried)) was a Dutch Golden Age painter specialized in landscapes. Contents It is unclear where Joris van der Haagen was born, either in Arnhem or Dordrecht, but archival evidence shows that he started his drawing career in Arnhem. He probably learned to paint from his father, the painter Abraham van der Haagen. When his father died he moved in 1639 to the Hague, where he joined the Guild of St. Luke in 1643. A year later he became honorary citizen of The Hague. In 1656 he was one of the founding members of the Confrerie Pictura, which was located on the Princessegracht in the Hague. The painting he made of the Princessegracht at this time probably shows the original building, which has since been renovated beyond recognition.
DROST, Willem
Dutch Baroque Era Painter, ca.1630-1680 Dutch painter, draughtsman and printmaker, possibly of German origin. According to Houbraken, he was a pupil of Rembrandt, possibly in or shortly before 1650. An early etching signed w drost 1652 is probably a self-portrait, in which Drost portrayed himself as a young man drawing. His earliest dated paintings are two pendants of 1653: the Portrait of a Man (New York, Met.) and the Portrait of a Woman (The Hague, Mus. Bredius). The man's portrait is signed Wilhelmus Drost F. Amsterdam 1653