Illustration 5. Poincaré technique to infer an invisible three-dimensional object from only the cast shadows in two dimensions. (Reprinted, by permission, from The Nature and Power of Mathematics by D.M. Davis, 1993, p. 138.) |
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Illustration 5. Poincaré technique to infer an invisible three-dimensional object from only the cast shadows in two dimensions. (Reprinted, by permission, from The Nature and Power of Mathematics by D.M. Davis, 1993, p. 138.) |