Author Topic: illusion: back ground effect  (Read 8914 times)

Fu-Kwun Hwang

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illusion: back ground effect
« on: January 05, 2011, 12:32:34 pm »
Does the innermost red and yellow squares look like a parallelogram?
Oops! They are squares.

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BecasConacyt

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Re: illusion: back ground effect
« Reply #1 on: June 20, 2011, 05:12:16 am »
Thanks!...-*-

lora0492

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Re: illusion: back ground effect
« Reply #2 on: August 05, 2011, 10:35:21 pm »
Just enjoyed this. Any scientific explanation behind this?
Thanks-*-