Penrose triangle love

Penrose triangle


from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An optical illusion depicting an impossible solid object made of three straight beams of square cross section which meet pairwise at right angles at the vertices of the triangle they form.


After Roger Penrose (1931-), English mathematician, who popularised it in the 1950s. (Wiktionary)


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