The Last Supper (Leonardo da Vinci) as it is told in the Gospel of John, 13:21. Leonardo has depicted the consternation that occurred among the Twelve Apostles when Jesus announced that one of them would betray him. Due to the methods used, a variety of environmental factors, and intentional damage, very little of the original painting remains today despite numerous restoration attempts, the last being completed in 1999. "The Last Supper" measures and covers an end wall of the dining hall at the monastery of Santa Maria delle Grazie in Milan, Italy. The theme was a traditional one for refectories, although the room was not a
Science and inventions of Leonardo da Vinci would light it as it lights us. Claims are sometimes made that Leonardo da Vinci was an alchemist. He was trained in the workshop of Verrocchio, who according to Vasari, was an able alchemist. Leonardo was a chemist in so much as that he experimented with different media for suspending paint pigment. In the painting of murals, his experiments resulted in notorious failures with the "Last Supper" deteriorating within a century, and the "Battle of Anghiari" running off the wall. In Leonardo's many pages of notes about artistic processes, there are some that pertain to the use of silver and