French Scientists Crack Secrets of Mona Lisa
By ANGELA DOLAND, Associated Press Writer
PARIS – The enigmatic smile remains a mystery, but French scientists say they have cracked a few secrets of the "Mona Lisa."
French researchers studied seven of the Louvre Museum's Leonardo da Vinci paintings, including the "Mona Lisa," to analyze the master's use of successive ultrathin layers of paint and glaze — a technique that gave his works their dreamy quality.
Specialists from the Center for Research and Restoration of the Museums of France found that da Vinci painted up to 30 layers of paint on his works to meet his standards of subtlety...