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 :. | Lorenzo de Medici between Antonio Pucci and Francesco Sassetti, with Giulio de Medici, fresco by Ghirlandaio | Raffaello Sanzio named Raffael Portrat of Lorenzo de Medici | The Baptism of Christ | Reverse side of the portrait of Ginevra de' Benci sg | Madchenkopf with confused hair |
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leigh hunt
British writer who defended the romanticism of Keats and Shelley (1784-1859) Synonyms: Hunt, James Henry Leigh Hunt
SASSOFERRATO
Italian Baroque Era Painter, 1609-1685 Italian painter and draughtsman. He served his apprenticeship under his father, Tarquinio Salvi. Tradition has it that he later (it is not known exactly when) studied with Domenichino in Naples, where he certainly had the opportunity of meeting Francesco Cozza and where he painted the Adoration of the Shepherds (Naples, Capodimonte). As a young man, Sassoferrato probably travelled often in the areas bordering on the Marches, for example in Umbria and particularly Perugia, where from 1630 he was connected with the Benedictine convent of S Pietro, for which he painted canvases of ten saints for the ceiling of the sacristy of the convent church
Isack jouderville
c,1612-before 1648 Dutch painter. His father, who came from Metz, kept a popular inn at Leiden. Isack Jouderville was among Rembrandt's earliest pupils and was apprenticed to the artist from late 1629 until the end of 1631. for the payment of his apprenticeship fees, signed by Rembrandt. During his last year of apprenticeship, Jouderville went to Amsterdam with Rembrandt. In 1632 he enrolled as a student of philosophy at Leiden University; it may well be, however, that he stayed in Amsterdam to assist Rembrandt in his workshop with his numerous portrait commissions. Jouderville himself painted mainly Rembrandtesque heads or 'tronies' and was such a faithful follower of his master's early work that several of his paintings were at one time attributed to Rembrandt. In 1636 Jouderville married Maria Le Fevre and settled in Leiden. Between 1641 and 1643 he lived in Deventer, after which he moved to Amsterdam, where he was last recorded in 1645.