The artwork of Marcel Duchamp presents intriguing, yet maddeningly intricate, puzzles.
In this sequence of images, a computer simulation superimposes an image of a normal coat rack (depicted in color) on Duchamp’s “readymade” coat rack, as seen in a grainy 1917 photograph (above). When a particular hook in the computer-generated image matches the corresponding hook in the photograph, the other hooks don’t line up (below).
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