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M.C. Escher (artist) Dutch, 1898 - 1972 Waterfall, 1961 lithograph image: 38.1 x 29.9 cm (15 x 11 3/4 in.) sheet: 49.7 x 40.9 cm (19 9/16 x 16 1/8 in.) Cornelius Van S. Roosevelt Collection All M.C. Escher works © Cordon Art-Baarn-the Netherlands. Used by permission. All rights reserved. 1982.90.12 |
Object 23 of 24
Escher's print illustrates the "impossible triangle" described by the British mathematician Roger Penrose in a 1958 article on visual illusion: "Here is a perspective drawing, each part of which is accepted as representing a three-dimensional, rectangular structure. The lines of the drawing are, however, connected in such a manner as to reproduce an impossibility. As the eye pursues the lines of the figure, sudden changes in the interpretation of distance of the object from the observer are necessary."
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