Restoration of the Sistine Chapel frescoes of the work. Based on this decision, according to Arguimbau's critical reading of the restoration data that has been provided, the chemists of the restoration team decided upon a solvent that would effectively strip the ceiling down to its paint-impregnated plaster. After treatment, only that which was painted "buon fresco" would remain. According to critics, the inherent problem with this approach is that it relied heavily upon an assumption that Michelangelo only painted "buon fresco", that he was always satisfied with the result at the end of the day, and that in four and a half years spent on the
Ceiling Painting/Yes Painting Ceiling Painting/Yes Painting Ceiling Painting/Yes Painting is a 1966 conceptual artwork by the Japanese artist Yoko Ono. The work is made from paper, glass, a metal frame, a metal chain, a magnifying glass, and a painted ladder. The word YES is printed on the piece of paper. The work is interactive, with the viewer (or participant) expected to climb the ladder and use a magnifying glass to look at the word 'YES' which is printed on paper beneath a sheet of glass suspended from the ceiling. The work was shown at Ono's autumn 1966 show, "Unfinished Paintings and Objects By