OPTICAL ILLUSIONS

                    

                  Image created by Pech Misfortune, via Mighty Optical Illusions

 

 

A variation on a classic illusion, this cat can be perceived as rotating in either direction. With practice, you can make it switch at will!

 

                 

Believe it or not, these lines are straight and parallel.

   

     Illusion created by Emily Knight and Arthur Shapiro

These "fish" may appear to be wiggling, but the only thing changing in this animation is the color.

 

 

Another "false spiral" -- actually a series of concentric circles, hard as it may be to believe. To prove that there's no spiral, try tracing your finger around one of the circles. You'll see that it never moves inward or outward.

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Via Mighty Optical Illusions

Stare at the center of this simple animation and you'll be convinced you're seeing a green circle moving around the edge. But are you?

 

 

 

 

What's your first impression of this image? Yellow arrows pointing left, or green arrows pointing right? There is no "correct" answer, but different people perceive this image differently at first.

 

Image created by Professor Akiyoshi Kitaoka, via Mighty Optical Illusions

Believe it or not, this image is not animated. The effect persists only in your peripheral vision; if you focus on any one of the spirals, it will stop moving.

 

 

 

 

 

 

Via Mighty Optical Illusions

Try moving your mouse pointer down across this image, following the pointer closely with your eyes. You should see a rippling effect moving through the picture -- even though it's a completely static image!

 

 

 

 

 

 

 

 

Lean up close to your monitor. What does this image say?

Try stepping back a few feet. What does it say now?

 

 

 

 

 

 

 

 

 

Stare at the red dot long enough, and the grey stripes will disappear.

 

 

 

 source:

Brain Teasers

Brain Teasers and Optical Illusions