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 :. | Profile one with book leaves gekroten of old man | Anatomical study of the brain and the scalp | The Annunciation | Landscape in the Arnotal | Studies fur the adoration of the Konige |
Related Artists:
fritz thaulow
född 1847 i Christiania, död 5 november 1906, var en norsk målare. Han är en av de internationellt mest kända norska konstnärerna från 1800-talet. Thaulow fick sin utbildning vid Konstakademin i Köpenhamn 1870 -72, och 1873-75 var han elev till Hans Gude i Karlsruhe. Åren efter detta uppehöll han sig för det mesta i Paris där han fick avgörande intryck från de franska impressionisterna. 1880 vände Thaulow hem som överbevisad naturalist. Tillsammans med Christian Krohg och Erik Werenskiold blev han snabbt en av ledarna i de unge konstnärernas kamp för en rikare och mer vidsynt norsk konstmiljö. Thaulow var bl.a. med på att etablera den första Höstutställningen 1882. 1892 slog han sig ner i Frankrike, och han besökte USA 1898. Från och med samma år bosatte han sig i Paris, där han blev en kändis och blev också känd internationellt, bl.a. genom att bli antagen till den prestigefulla Salongen.
Jakob Mertens
Jakob Merten (August 11, 1809 - February 22, 1872) was a German Catholic theologian who was born in Wittlich. He studied theology in Trier, where in 1833 he received his ordination. Subsequently he became a chaplain in Trier, where he worked closely with Franz Peter Knoodt (1811-1889). From 1843 to 1868 he was a professor of philosophy at the Episcopal Seminary in Trier. Initially a prominent follower of Anton Genther's philosophy, Merten eventually abandoned Gentherianism as his career progressed. He was author of an essay on Gentherian philosophy titled Hauptfragen der Metaphysik in Verbindung mit der Speculation (Primary Questions of Metaphysics in Association with Speculation) (1840). Other noted works by Merten include: Grundriss der Metaphysik, (Outline of Metaphysics); 1848 Der selige Frings und sein Freund als Antigentherianer; 1852 Bemerkungen zur Metaphysik von Balmes, (Remarks on the Metaphysics of Balmes); 1859
BONSIGNORI, Francesco
Italian painter, Veronese school (b. 1455, Verona, d. 1519, Caldiero) Italian painter. His father, Albertus Bonsignori, was reputedly an amateur painter; and besides Francesco, the oldest and most talented of his children, three other sons, including Bernardino (c. 1476-c. 1520) and Girolamo (b c. 1479), are also recorded as painters. Barely 20 paintings and fewer than a dozen drawings have been attributed to Francesco Bonsignori.