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Twisted Cord Illusion

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Copyright © 1996-2009 Alexander Bogomolny

 

 

 

 

 

 

 

 

 

The parallel lines do not often look parallel.

The first figure depicts the so called Twisted Cord illusion, the second the Brick Wall one (needs rotating through 90o.) The latter has a page of its own.


References

  1. A. Seckel, The Art of Optical Illusions, Carlton Books, 2000 (#30)

Copyright © 1996-2009 Alexander Bogomolny

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