The mind is an amazing thing.  Test out what your eyes are telling your head versus what you know or believe to be true with the following optical illusions.

Stare at the large square and count the white dots (or are they white dots).

 

 

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Are the lines below straight or are they curved?

 To see if your guess is correct, try putting a ruler or a straight edge to the screen.

 

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Image designed by Herman Verwaal

 

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Look carefully at the center dots on both the left and right.  Which dot is bigger?

 

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What do you see below?

A woman or a musician?  Or both?

 

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Image designed by Herman Verwaal

 

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