café wall illusion

noun

Etymology

Described under its current name in 1973 by Richard Gregory, according to whom this effect was observed by a member of his laboratory, Steve Simpson, in the tiles of the wall of a café at the bottom of St Michael’s Hill, Bristol.

Definitions

  1. An optical illusion in which the parallel straight dividing lines between staggered rows…

    An optical illusion in which the parallel straight dividing lines between staggered rows with alternating dark and light bricks appear to be sloped rather than parallel.

The neighborhood

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sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA