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  1. The Penrose triangle, also known as the Penrose tribar, the impossible tribar, or the impossible triangle, is a triangular impossible object, an optical illusion consisting of an object which can be depicted in a perspective drawing.

  2. May 15, 2018 · Kokichi Sugihara. CNN — Kokichi Sugihara specializes in the impossible. He creates mind-bending physical objects that look and behave in incredible ways when seen from the right angle, such as...

  3. Impossible objects. In graphic design, it is possible to construct deliberately-misconstructed diagrams and images that appear to represent valid three-dimensional objects, but which on further examination would be impossible to produce.

  4. An impossible object is a kind of optical illusion. Impossible objects are also known as undecidable figures. In this kind of illusion, a person looks at a two-dimensional picture. The vision center of the brain does much of its work subconsciously and automatically.

  5. The impossible cube or irrational cube is an impossible object invented by M.C. Escher for his print Belvedere. It is a two-dimensional figure that superficially resembles a perspective drawing of a three-dimensional cube, with its features drawn inconsistently from the way they would appear in an actual cube.

  6. The Penrose triangle, also known as the tribar or impossible triangle, is an impossible object, first created by the Swedish artist Oscar Reutersvärd, popularized by Roger Penrose, and later featured prominently in the works of artist M. C. Escher.

  7. The Penrose Triangle is an impossible figure (or impossible object or undecidable figure): it depicts an object which could not possibly exist. It is impossible for the Impossible Triangle to exist because in order for it to exist rules of Euclidean geometry would have to be violated.