Abstract art based on Cézanne's idea that all depiction of nature can be reduced to three solids: cube, sphere and cone. With the painting "Les Demoiselles d'Avignon" (1907), Picasso dramatically created a new and radical picture depicting a raw and primitive brothel scene with five prostitutes, violently painted women, reminiscent of African tribal masks and his own new Cubist inventions. Analytic cubism was jointly developed by Pablo Picasso and Georges Braque, from about 1908 through 1912. Analytic cubism, the first clear manifestation of cubism, was followed by Synthetic cubism, practiced by Braque, Picasso, Fernand Léger, Juan Gris, Albert Gleizes, Marcel Duchamp and
Radiography of cultural objects Albert Museum, the artist painted over a previous picture that had not even dried yet. Pigments from the lower painting appear through cracks in the surface layer. The Old Guitarist by Pablo Picasso at the Art Institute of Chicago had been previously examined with visible and ultraviolet light, which had hinted at the possibility of an earlier composition. X-rays of the painting revealed that Picasso had originally painted two female figures behind the guitarist. The x-rays also penetrated far enough to reveal how Picasso had prepared the wooden panel for painting. X-rays can provide a better picture of plaster casts