Leonardo da Vinci

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Leonardo di ser Piero da Vinci
Portrait in red chalk, circa 1512 to 1515, widely (though not universally) accepted as an original self-portrait.
Born	April 15, 1452 Anchiano, Florence, Italy
Died	May 2, 1519 Amboise, Indre-et-Loire, France
Nationality	Italian
Known for	Engineering, architecture, astronomy, paleontology, anatomy, painting
Scientific career
Fields	Geometry, anatomy, mathematics, physics, visual arts, dynamics

Leonardo di ser Piero da Vinci (April 15, 1452 – May 2, 1519) was an Italian polymath: architect, anatomist, sculptor, engineer, inventor, mathematician, musician, and painter. He has been described as the archetype of the "Renaissance man", a man infinitely curious and equally inventive. He is widely considered to be one of the greatest painters of all time.

He was born and raised as a child in Vinci Italy. Leonardo is famous for his realistic paintings, such as the Mona Lisa and The Last Supper, as well as for influential drawings such as the Vitruvian Man. He conceived of ideas vastly ahead of his own time, notably conceptually inventing a helicopter, a tank, the use of concentrated solar power, a calculator, a rudimentary theory of plate tectonics, the double hull, and many others. Relatively few of his designs were constructed or were feasible during his lifetime; modern scientific approaches to metallurgy and engineering were only in their infancy during the Renaissance. In addition, he greatly advanced the state of knowledge in the fields of anatomy, astronomy, civil engineering, optics, and the study of water (hydrodynamics). Of his works, only a few paintings survive, together with his notebooks (scattered among various collections) containing drawings, scientific diagrams and notes.

Leonardo had no surname in the modern sense; "da Vinci" simply means "from Vinci". His full birth name was "Leonardo di ser Piero da Vinci", meaning "Leonardo, son of (Mes)ser Piero from Vinci."

Professional life

i really have no applesauce

Selected works

The Baptism of Christ (1472–1475) – Uffizi, Florence, Italy (from Verrocchio's workshop; angel on the left-hand side is generally agreed to be the earliest surviving painted work by Leonardo)
Annunciation (1475–1480) – Uffizi, Florence, Italy
Ginevra de' Benci (c. 1475) – National Gallery of Art, Washington, D.C., United States
The Benois Madonna (1478–1480) – Hermitage Museum, Saint Petersburg, Russia
The Virgin with Flowers (1478–1481) – Alte Pinakothek, Munich, Germany
Adoration of the Magi (1481) – Uffizi, Florence, Italy
The Madonna of the Rocks (1483–86) – Louvre, Paris, France
Lady with an Ermine (1488–90) – Czartoryski Museum, Krakow, Poland
Portrait of a Musician (c. 1490) – Pinacoteca Ambrosiana, Milan, Italy
Madonna Litta (1490–91) – Hermitage Museum, Saint Petersburg, Russia
La belle Ferronière (1495–1498) – Louvre, Paris, France — attribution to Leonardo is disputed
Last Supper (1498) – Convent of Sta. Maria delle Grazie, Milan, Italy
The Virgin and Child with St. Anne and St. John the Baptist (c. 1499–1500) – National Gallery, London, UK
Madonna of the Yarnwinder 1501 (original now lost)
Mona Lisa or La Gioconda (1503-1505/1507) – Louvre, Paris, France
The Madonna of the Rocks or The Virgin of the Rocks (1508) – National Gallery, London, UK
Leda and the Swan (1508) - (Only copies survive — best-known example in Galleria Borghese, Rome, Italy)
The Virgin and Child with St. Anne (c. 1510) – Louvre, Paris, France
St. John the Baptist (c. 1514) – Louvre, Paris, France
Bacchus (or St. John in the Wilderness) (1515) – Louvre, Paris, France

Science and engineering

Renaissance humanism saw no mutually exclusive polarities between the sciences and the arts, and Leonardo's studies in science and engineering are as impressive and innovative as his artistic work, recorded in notebooks comprising some 13,000 pages of notes and drawings, which fuse art and science. These notes were made and maintained through Leonardo's travels through Europe, during which he made continual observations of the world around him. He was left-handed and used mirror writing throughout his life. This is explainable by the fact that it is easier to pull a quill pen than to push it; by using mirror-writing, the left-handed writer is able to pull the pen from right to left and also avoid smudging what has just been written. He wrote in his diaries (journals) using mirror writing.

His approach to science was an observational one: he tried to understand a phenomenon by describing and depicting it in utmost detail, and did not emphasize experiments or theoretical explanation. Since he lacked formal education in Latin and mathematics, contemporary scholars mostly ignored Leonardo the scientist, although he did teach himself Latin. It has also been said that he was planning a series of treatises to be published on a variety of subjects though none were ever done.

The *Vitruvian Man*, Leonardo's study of the proportions of the human body.

Anatomy

Leonardo started to discover the anatomy of the human body at the time he was apprenticed to Andrea del Verrocchio, as his teacher insisted that all his pupils learn anatomy. As he became successful as an artist, he was given permission to dissect human corpses at the hospital Santa Maria Nuova in Florence. Later he dissected in Milan at the hospital Maggiore and in Rome at the hospital Santo Spirito (the first mainland Italian hospital). From 1510 to 1511 he collaborated with the doctor Marcantonio della Torre (1481 to 1511). In 30 years, Leonardo dissected 30 male and female corpses of different ages. Together with Marcantonio, he prepared to publish a theoretical work on anatomy and made more than 200 drawings. However, his book was published only in 1680 (161 years after his death) under the heading Treatise on painting. Leonardo also dissected cows, birds, monkeys, bears, and frogs, comparing their anatomical structure with that of humans.

Leonardo drew many images of the human skeleton, and was the first to describe the double S form of the backbone. He also studied the inclination of pelvis and sacrum and stressed that sacrum was not uniform, but composed of five fused vertebrae. He was also able to represent exceptionally well the human skull and cross-sections of the brain (transversal, sagittal, and frontal). He drew many images of the lungs, mesentery, urinary tract, sex organs, and even coitus. He was one of the first who drew the fetus in the intrauterine position (he wished to learn about "the miracle of pregnancy") as well as the first to draw the human appendix. He often drew muscles and tendons of the cervical muscles and of the shoulder. He was a master of topographic anatomy. He not only studied human anatomy, he studied the anatomy of many other animals, as well. Leonardo could simultaneously draw with one hand and write with the other.

It is important to note that he was not only interested in structure but also in function, so he became a physiologist in addition to being an anatomist. He actively searched for models among those who had significant physical deformities, for the purpose of developing caricature drawings.

His study of human anatomy led also to the design of the first known robot in recorded history. The design, which has come to be called Leonardo's robot, was probably made around the year 1495 but was rediscovered only in the 1950s. It is not known if an attempt was made to build the device. He correctly worked out how heart valves eddy the flow of blood yet he was unaware of circulation as he believed that blood was pumped to the muscles where it was consumed. A diagram drawing Leonardo did of a heart inspired a British heart surgeon to pioneer a new way to repair damaged hearts in 2005.

An armoured tank designed by Leonardo at the Château d'Amboise

Inventions and engineering

Fascinated by the phenomenon of flight, Leonardo produced detailed studies of the flight of birds, and plans for several flying machines, including a helicopter powered by four men (which would not have worked since the body of the craft would have rotated) and a light hang glider which could have flown. On January 3, 1496 he unsuccessfully tested a flying machine he had constructed.

The interior of Leonardo da Vinci's armoured tank

In 1502, Leonardo da Vinci produced a drawing of a single span 720-foot (240 m) bridge as part of a civil engineering project for Ottoman Sultan Beyazid II of Istanbul. The bridge was intended to span an inlet at the mouth of the Bosphorus known as the Golden Horn. Beyazid did not pursue the project, because he believed that such a construction was impossible. Leonardo's vision was resurrected in 2001 when a smaller bridge based on his design was constructed in Norway. In May 2006, the Turkish government decided to construct Leonardo's bridge. It is expected to be finished by October 2006.

In 1490, he made a sketch that conceptualized a stepless continuously variable transmission (CVT). Modern variations of Leonardo's transmission concept are being used in some automobiles produced today. Continuously variable transmissions have been available in tractors, snowmobiles, and motorscooters for many years.

Owing to his employment as a military engineer, his notebooks also contain several designs for military machines: machine guns, an armoured tank powered by humans or horses, cluster bombs, a working parachute, a diving suit made out of pig's leather and a hose connecting to air, etc. even though he later held war to be the worst of human activities. Other inventions include a submarine, a cog-wheeled device that has been interpreted as the first mechanical calculator, and one of the first programmable robots that has been misinterpreted as a car powered by a spring mechanism. In his years in the Vatican, he planned an industrial use of solar power, by employing concave mirrors to heat water. While most of Leonardo's inventions were not built during his lifetime, models of many of them have been constructed with the support of IBM and are on display at the Leonardo da Vinci Museum at the Château du Clos Lucé in Amboise .

Notebooks

Leonardo kept notebooks throughout his life, in which he wrote daily, often in a private "backwards" or mirror-image handwriting. While the popular belief that he did this to keep some amount of secrecy may have some truth, the more plausible reason is that he did this naturally due to his left-handedness. He wrote about his sketches, inventions, architecture, elements of mechanics, painting ideas, human anatomy, grocery lists and even people that owed him money. These notebooks—originally loose papers of different types and sizes, distributed by friends after his death—have found their way into major collections such as the Louvre, the Biblioteca Nacional de España, the Biblioteca Ambrosiana in Milan, and the Victoria and Albert Museum and British Library in London. The British Library has put a selection from its notebook (BL Arundel MS 263) on the web in the Turning the Pages section. The Codex Leicester is the only major scientific work of Leonardo's in private hands. It is owned by Bill Gates, and is displayed once a year in different cities around the world.

Why Leonardo did not publish or otherwise distribute the contents of his notebooks remains a mystery to those who believe that Leonardo wanted to make his observations public knowledge. Technological historian Lewis Mumford suggests that Leonardo kept notebooks as a private journal, intentionally censoring his work from those who might irresponsibly use it (the tank, for instance). They remained obscure until the 19th century, and were not directly of value to the development of science and technology. In January 2005, researchers discovered the hidden laboratory used by Leonardo da Vinci for studies of flight and other pioneering scientific work in previously sealed rooms at a monastery next to the Basilica of the Santissima Annunziata, in the heart of Florence.

Personal life

Leonardo was the illegitimate son of a notary named Ser Piero and a peasant girl named Catarina, born April 14, 1452 in Vinci (hence the name): a small town right outside of Florence, Italy. His parents seperated and Leonardo went and lived with his father. Both spouses went on to marry others and, eventually, Leonardo had 17 half-brothers and sisters. He grew up reading texts and painting under his father's close eye and, at the age of 15, he was apprenticed, by his father, to the renowned studio of Andrea del Verrochio in Florence. Even as an adolescent, he radiated enormous talent and it influenced most of the work that was turned out by the workshop. It is even rumored that he was more talented than his master, even with his rough ability and unhoned talent. In 1477, Leonardo set off to start his own gallery, and seeking his own fortune, ended up in Milan.

In Milan, he began working privately for the Duke of Milan. He stayed for 17 years until the Duke lost his power in 1499. That short 17 years were probably the most important for him because it helped him refine his skill, and he started to evolve into an accomplished artist. the Duke had him always working, relentlessly creating paintings and portraits, sculptures and elaborate festivals. His engineering prowess was also brought to the fore-front when the Duke had him designing weapons and other machines to help gain the Duke for land and power. in private and on his own, Leonardo designed everything from subs to a medieval version of the modern tank. He also designed architecture for cathedrals, castles, and everything in between. He also began anatomical studies and drew The Vitruvian Man; these studies being some of the most in-depth since Galen. He dabbled in math and nature, too, but his favorite pasttime was the idea of flight. You could find him any sunny, breezy day out in the fields around Milan flying a kite or sketching birds. He created thousands and thousands of different flying vehicles and even designed the first helicopter. This love of flying would become evident in his adoration in drawing and painting birds and angels. During this time he completed some of his more famous works like The Last Supper and The Virgin on the Rocks.

A fun fact about him was that he was a leftie in a rightie world. Back in his time, left-handed writing was often viewed as an act of the devil and they were often forced to use their right hands anyway. Leonardo was, in his own way, one of the original non-conformers. He detached himself by using his left hand and often to entertain himself and fool others, he would right backwards in left hand so that the only way you can read it is with a mirror. He used this backwards manuscript in his journals or "codexes" that are now hot topics for collectors and museums. They are meticulously written with sketches in them of machines, famous works, and works that were never fulfilled.

For 16 years, Leonardo traversed the world working for many people, including being an engineer for Cesare Borgia's army, meeting Niccolo Machiavelli along the way, and designing a bridge to span the gap near Constantinople.

His father died in about 1503 (around the time when he started painting the Mona Lisa) and lost all of his inheritance to his half-brothers and sisters, but he also had an uncle die and Leonardo eventually run out his siblings and won the inheritance, which he used the land and property to open a studio of his own.

He went to work for Rome eventually, which he despised a great deal. We are not positive but we do not believe that he was a practicing Christian. He did not like the way the Church was running things, but back then, when you are commisioned to do something for the Church, you do it, lest you be condemned of heresy. Going back, one of his original works for the Church was Madonna of the Rocks which he was forced to do a second time because the first one was, how do you say, "sacrilege". The worst part of it was the "John-the-Baptist-blessing-Jesus", a very un-Christian-like thing to have in a painting. He was commissoned, under pain of death, to paint a second "watered down" version which he eventually did which was named Virgin of the Rocks.

Leonardo entered his last, and probably best job as "Premier Painter and Engineer and Architect of the King" to Francis I of France. He was given a nice manor, a beautiful stipend, and his own studio where he had many people working for him and helping creating works of art. He eventually became paralyzed in his right hand, but continued to paint everything from religious portraits of St. George and the Virgin Mary with Jesus, to pagan paintings of nature and water; along with anatomical studies and inventions.

He eventually died on May 2,1519 in Cloux, France. Though his loss was a tragic one, he set the trend for art and is still viewed as a father to the arts and a great inspiration to artists everywhere. His works are also sold for millions of dollars and grace the halls of prestigious museums like the Louvre and the Metropolitan Museum of Art.--M.C. Kennelly (11/26/06)

Leonardo kept his private life secret. He claimed to have a distaste of physical relations: his comment that "the act of procreation and anything that has any relation to it is so disgusting that human beings would soon die out if there were no pretty faces and sensuous dispositions", was later interpreted by Sigmund Freud, in an analysis of the artist, as indicative of his "frigidity".

In 1476, while still living with Verrocchio, he was accused anonymously of sodomy with a 17 year-old model, Jacopo Saltarelli, a youth already known to the authorities for his sexual escapades with men. After two months of investigation he was acquitted, ostensibly because no witnesses stepped forward though others claim it was due to his father's respected position. For some time afterwards, Leonardo and the others were kept under observation by Florence's Officers of the Night - a Renaissance organization charged with suppressing the practice of sodomy, as shown by surviving legal records of the Podestà and the Officers of the Night.

Leonardo's alleged love of boys was a topic of discussion even in the sixteenth century. In "Il Libro dei Sogni" (The Book of Dreams), a fictional dialogue on l'amore masculino (male love) written by the contemporary art critic and theorist Gian Paolo Lomazzo, Leonardo appears as one of the protagonists and declares, "Know that male love is exclusively the product of virtue which, joining men together with the diverse affections of friendship, makes it so that from a tender age they would enter into the manly one as more stalwart friends." In the dialogue, the interlocutor inquires of Leonardo about his relations with his assistant, il Salaino, "Did you play the game from behind which the Florentines love so much?" Leonardo answers, "And how many times! Keep in mind that he was a beautiful young man, especially at about fifteen."

Gian Giacomo Caprotti da Oreno, nicknamed Salai or il Salaino ("The Little Unclean One" i.e., the devil), was described by Giorgio Vasari as "a graceful and beautiful youth with fine curly hair, in which Leonardo greatly delighted." Il Salaino entered Leonardo's household in 1490 at the age of 10. The relationship was not an easy one. A year later Leonardo made a list of the boy’s misdemeanours, calling him "a thief, a liar, stubborn, and a glutton." The "Little Devil" had made off with money and valuables on at least five occasions, and spent a fortune on apparel, among which were twenty-four pairs of shoes. Nevertheless, il Salaino remained his companion, servant, and assistant for the next thirty years, and Leonardo’s notebooks during their early years contain pictures of a handsome, curly-haired adolescent.

Il Salaino's name also appears (crossed out) on the back of an erotic drawing (ca. 1513) by the artist, The Incarnate Angel, at one time in the collection of Queen Victoria. It is seen as a humorous and revealing take on his major work, St. John the Baptist, (based on Salaino's appearance) also a work and a theme imbued with homoerotic overtones by a number of art critics such as Martin Kemp and James Saslow Another erotic work, found on the verso of a foglio in the Atlantic Codex, depicts il Salaino's behind, towards which march several penises on two legs. Some of Leonardo's other works on erotic topics, his drawings of heterosexual human sexual intercourse, were destroyed by a priest who found them after his death .

In 1506, Leonardo met Count Francesco Melzi, the 15 year old son of a Lombard aristocrat. Melzi himself, in a letter, described Leonardo's feelings towards him as a sviscerato et ardentissimo amore ("a deeply passionate and most burning love"). Salai eventually accepted Melzi's continued presence and the three undertook journeys throughout Italy. Melzi became Leonardo's pupil and life companion, and is considered to have been his favourite student.

Though Salai was always introduced as Leonardo's "pupil", the artistic merit of his work has been a matter of debate. He is credited with a nude portrait of Lisa del Gioconda, known as Monna Vanna, painted in 1515 under the name of Andrea Salai. The other portrait of Lisa del Gioconda, the Mona Lisa was bequeathed to Salai by Leonardo, a valuable piece even then, as it is valued in Salai's own will at £200,000.

Both of these relationships follow the pattern of eroticized apprenticeships which were frequent in the Florence of Leonardo's day, relationships which were often loving and frequently sexual. (See Historical pederastic couples.) Besides them, Leonardo had many other friends who are figures now renowned in their fields, or for their influence on history. These included Cesare Borgia, in whose service he spent the years of 1502 and 1503. During that time he also met Niccolò Machiavelli, with whom later he was to develop a close friendship. Also among his friends are counted Franchinus Gaffurius and Isabella d'Este, whose portrait he drew while on a journey which took him through Mantua.

Vegetarianism

It is apparent from the works of Leonardo and his early biographers that he was a man of high integrity and very sensitive to moral issues. His respect for life led him to being a vegetarian for at least part of his life. The term "vegan" would fit him well, as he even entertained the notion that taking milk from cows amounts to stealing. Under the heading, "Of the beasts from whom cheese is made," he answers, "the milk will be taken from the tiny children." . Vasari reports a story that as a young man in Florence he often bought caged birds just to release them from captivity. He was also a respected judge on matters of beauty and elegance, particularly in the creation of pageants.

It is possible that Leonardo da Vinci embraced vegetarianism at a young age, and unverified claims have been made that he remained so for the entire duration of his life.

Sleep

Leonardo is reputed to have followed an unusual regime of polyphasic sleep, with frequent naps instead of extended periods of sleep.

Johannite heresy

It has been the subject of much speculation whether da Vinci was an orthodox Christian or whether he was a heretic. Many conspiracy theorists believe that he was "infected" with the Johannite heresy, that is he regarded not Jesus Christ but John the Baptist as the real Christ. This subject has also been the source for many best-selling books in recent times.

Cultural depictions of Leonardo da Vinci

Main article: Cultural depictions of Leonardo da Vinci

With the genius and legacy of Leonardo da Vinci having captivated authors and scholars generations after his death, many examples of "da Vinci fiction" can be found in culture and literature. As of 2006, the most prominent example is Dan Brown's novel The Da Vinci Code (2003), which is concerned with Leonardo's role as a supposed member of a secret society called the Priory of Sion.

References and notes

The U.S. Public Broadcasting Service (PBS), aired in October 2005, a television programme called "Leonardo's Dream Machines", about the building and successful flight of a glider based on Leonardo's design
Sigmund Freud, Gesammelte Werke, bd VIII, 1909–1913
Saslow, Ganymede in the Renaissance: Homosexuality in Art and Society, 1986, p.197
E quante volte! Considera che egli era uno bellissimo giovane, e massime ne' 15 anni. Giovanni Paolo Lomazzo, "Il Libro dei Sogni;" (1563) in Scritti sulle arti; Centro DI, Firenze, 1974; vol 2, dialogue 5
Oreno website (Italian)
Saslow, ibid., passim)
Augusto Marinoni, in "Io Leonardo", Mondadori, Milano 1974, pp.288,310
Crompton, p.269
Michael Rocke, Forbidden Friendships epigraph, p. 148 & N120 p.298
http://www.ivu.org/history/davinci/hurwitz.html Page accessed 17 September 2006