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 :. | Study for the Trivulzio Equestrian Monument | Portrait of a Lady at the Court of Milan (san05) | The Annunciation | Virgin and Child with St Anne | The Annunciation |
Related Artists:
Antonio Puccio Called Pisanello
Verona before 1395-ca 1455
Friedrich Hagedorn
(23 April 1708 - 28 October 1754), German poet, was born at Hamburg, where his father, a man of scientific and literary taste, was Danish minister. He was educated at the gymnasium of Hamburg, and later (1726) became a student of law at Jena. Returning to Hamburg in 1729, he obtained the appointment of unpaid private secretary to the Danish ambassador in London, where he lived till 1731. Hagedorn's return to Hamburg was followed by a period of great poverty and hardship, but in 1733 he was appointed secretary to the so-called "English Court" (Englischer Hof) in Hamburg, a trading company founded in the 13th century. He shortly afterwards married, and from this time had sufficient leisure to pursue his literary occupations till his death. Hagedorn is the first German poet who bears unmistakable testimony to the nation's recovery from the devastation wrought by the Thirty Years' War. He is eminently a social poet. His light and graceful love-songs and anacreontics, with their undisguised joie de vivre, introduced a new note into the German lyric; his fables and tales in verse are hardly inferior in form and in delicate persiflage to those of his master La Fontaine, and his moralizing poetry re-echoes the philosophy of Horace. He exerted a dominant influence on the German lyric until late in the 18th century. The first collection of Hagedorn's poems was published at Hamburg shortly after his return from Jena in 1729, under the title Versuch einiger Gedichte (reprinted by A. Sauer, Heilbronn, 1883). In 1738 appeared Versuch in poetischen Fabeln und Erzählungen; in 1742 a collection of his lyric poems, under the title Sammlung neuer Oden und Lieder; and his Moralische Gedichte in 1750. A collection of his entire works was published at Hamburg in 1757 after his death. The best is J.J. Eschenburg's edition (5 vols., Hamburg, 1800). Selections of his poetry with an excellent introduction in F. Muncker's Anakreontiker und preussisch-patriotische Lyriker (Stuttgart, 1894). See also H. Schuster, F. von Hagedorn und seine Bedeutung fer die deutsche Literatur (Leipzig, 1882); W. Eigenbrodt, Hagedorn und die Erzählung in Reimversen (Berlin, 1884).
Ignazio Danti
Italian,1536-1586 was an Italian priest, mathematician, astronomer, and cosmographer. Danti was born in Perugia to a family rich in artists and scientists. As a boy he learned the rudiments of painting and architecture from his father Giulio, an architect and engineer who studied under Antonio da Sangallo, and his aunt Teodora, who was said to have studied under the painter Perugino and also wrote a commentary on Euclid. His older brother Vincenzo Danti would become one of the leading court sculptors of late-sixteenth-century Florence, while his younger brother Girolamo (1547-1580) would become a local Perugian painter of little fame. Danti entered the Dominican Order on March 7, 1555, changing his baptismal name from Pellegrino to Ignazio. After completing his studies in philosophy and theology he gave some time to preaching, but soon devoted himself zealously to mathematics, astronomy, and geography. In 1562, he requested a transfer from the Dominican compound in Perugia to the monastery of San Marco in Florence. Soon after, he found work on the side tutoring the children of wealthy Florentines in mathematics and science. In September 1563, he was invited by Cosimo I, Duke of Tuscany to participate in his great cosmographical project, the Guardaroba in the Palazzo Vecchio. Over the next dozen years, Danti would paint 30 maps of regions of the world (based largely upon published prints by Giacomo Gastaldi, Abraham Ortelius, Gerardus Mercator, and others) upon the cabinet doors of the Guardaroba. He would also work on many other significant scientific and cosmographic projects in Florence, including the large terrestrial globe of the Guardaroba (1564-1568), and a number of brass scientific instruments (such as an astrolabe) today in the Museo di Storia della Scienza in Florence. Between 1567 and 1569, Pius V, who belonged to the Dominicans, is said to have commissioned Danti to furnish plans for the construction of a Dominican church and convent at Bosco Marengo in Piedmont; Danti acted mainly as an advisor. During his stay in Florence, Danti taught mathematics and published over a dozen scientific treatises, mostly commentaries on ancient and medieval astronomy and mathematics or explanations of how to use scientific instruments. For much of his time in Florence, Danti resided at the convent of Santa Maria Novella, and designed the quadrant (on the right) and the armillary sphere (on the left) that appear on the end blind arches of the lower facade of the church in 1572 and 1574, respectively. He also designed a large-scale gnomon for the church which would allow a thin beam of light to enter the church at noon each day through a hole just beneath the facade's rose window, although it probably was not completed by the time Danti left Florence. There were also discussions between the Duke and Danti about building a canal to place Florence in communication with both the Mediterranean and the Adriatic. However, this grandiose plan never got underway before Cosimo's death in (1574). The following year Cosimo's son, Grand Duke Francesco I de' Medici, forced Danti to leave Florence (in late September 1575) on an uncertain morals charge. It is not known precisely why Francesco exiled Danti, but it should be noted that the Dominican had no trouble finding work or patrons anywhere else in Italy, although he never returned to Florence before his death. After leaving Florence, Danti became professor of mathematics at the University of Bologna. While occupying this chair he built a massive gnomon in the Bolognese church of San Petronio, the meridian line of which is still visible in the church's pavement. He also spent some time in Perugia, at the invitation of the governor, where he prepared maps of the Perugian republic. On account of his mathematical attainments, Pope Gregory XIII invited him to Rome, appointed him pontifical mathematician and made him a member of the commission for the reform of the calendar. He also placed him in charge of the painters whom the Pope had summoned to the Vatican to continue the decoration of the palace, most notably to make a number of maps of the regions of modern Italy in the newly constructed Gallery of Maps along the Cortile del Belvedere. This remarkable project, begun in early 1580 and completed about 18 months later, maps the entirety of the Italian peninsula in 40 large-scale frescoes, each depicting a region as well as a perspective view of its most prominent city. When the pontiff commissioned the architect Domenico Fontana to repair the Claudian harbour it was Danti who furnished the necessary plans. While at Rome Danti published a translation of a portion of Euclid with annotations and wrote a life of the architect Jacopo Barozzi da Vignola, preparing also notes for the latter's work on perspective. In recognition of his labours Gregory, in 1583, made him Bishop of Alatri in the Campagna. Danti showed himself a zealous pastor in his new office.