what media was used for this work?
Oil painting
Medium
Leonardo, as a painter, favoured oil painting, a medium which allows the artist to work slowly and make changes with ease. Fresco painting does not facilitate either of these things. Leonardo also sought a greater luminosity and intensity of light and shade (chiaroscuro) than could be achieved with fresco. Instead of painting with water-soluble paints onto wet plaster, laid freshly each day in sections, Leonardo painted "The Last Supper" on a wall sealed with a double layer of gesso, pitch, and mastic. Then, borrowing from panel painting, he added an undercoat of white lead to enhance the brightness of the oil and tempera that was applied on top. This was a method that had been described previously by Cennino Cennini in the 14th century. However, Cennini described the technique as being more risky than fresco painting, and recommended the use of "a secco" painting (on dry plaster) for the final touches alone.
when was the first man made diamond made 1954 what are the materials required to make this? Pure carbon, the belt press, the cubic press and the split-sphere (BARS) press. what temperature-pressure conditions are required fopr this? High pressure, high temperature. can you mention any of its uses? Machine tools and cutting tools; as a Thermal conductor; as an Optical material; semiconductors ; gemstones what is the first one? A machine for handling or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformation can you provide me the historical background for such tools? Forerunners of machine tools included bow drills and potter's wheels, which had existed in ancient Egypt prior to 2500 BC, and lathes, known to have existed in multiple regions of Europe since at least 1000 to 500 BC. can you name any prominent figure involved in this background? Leonardo da Vinci where was he born? Tuscan hill town of Vinci, Republic of Florence. what was his profession? Painter, engineer can you name any such painted work by him? Mona Lisa, The Last Supper by whom was the second one commissioned? Ludovico Sforza - Duke of Milan
UNANSWERABLE Oil painting Oil
The Last Supper (Leonardo) The Last Supper (Leonardo)
Medium Medium
Leonardo, as a painter, favoured oil painting, a medium which allows the artist to work slowly and make changes with ease Leonardo, as a painter, favoured oil painting, a medium which allows the artist to work slowly and make changes with ease. Fresco painting does not facilitate either of these things. Leonardo also sought a greater luminosity and intensity of light and shade (chiaroscuro) than could be achieved with fresco. Instead of painting with water-soluble paints onto wet plaster, laid freshly each day in sections, Leonardo painted "The Last Supper" on a wall sealed with a double layer of gesso, pitch, and mastic. Then, borrowing from panel painting, he added an undercoat of white lead to enhance the brightness of the oil and tempera that was applied on top. 
wiki:13440707
The Last Supper (Leonardo) [SEP] Medium
Leonardo, as a painter, favoured oil painting, a medium which allows the artist to work slowly and make changes with ease. Fresco painting does not facilitate either of these things. Leonardo also sought a greater luminosity and intensity of light and shade (chiaroscuro) than could be achieved with fresco. Instead of painting with water-soluble paints onto wet plaster, laid freshly each day in sections, Leonardo painted "The Last Supper" on a wall sealed with a double layer of gesso, pitch, and mastic. Then, borrowing from panel painting, he added an undercoat of white lead to enhance the brightness of the oil and tempera that was applied on top.