Zöllner's Illusion


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Zöllner illusion

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Copyright © 1996-2017 Alexander Bogomolny

Depending on the relative position of stationary and rotating lines, the former do not sometimes appear parallel, although they always are (F. Zöllner, 1860.)

References

  1. A. Seckel, The Art of Optical Illusions, Carlton Books, 2002, #125
  2. The Mind's Eye, Readings from SCIENTIFIC AMERICAN, W. H. Freeman and Company, 1986

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Copyright © 1996-2017 Alexander Bogomolny

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