Optical Illusions

If you take a look at the following picture , let me tell you … it is not animated. Your eyes are making it move. To test this, stare at one spot for a couple seconds and everything will stop moving. Or look at the black center of each circle and it will stop moving. But move your eyes to the next black center and the previous will move after you take your eyes away from it….

Weird isn’t it???

You should see a man’s face… AND a word that starts with letter “L”.

Got it????

And this one is the coolest………

Follow the following instructions:

1. Relax and concentrate on th four small dots in the middle of the picture in about 30 - 40 secs.

2. Then take a look at any smooth single coloured surface (probably a wall) near you.

3. You will see a circle of light developing. Start blinking your eyes a couple of times and you will see an image emerging!!!

WHAT DO YOU SEE??? MOREOVER, WHO DO YOU SEE???

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WHAT IS IT?

This model presents five classic optical illusions.

HOW IT WORKS

The optical illusions are constructed using a combination of NetLogo turtles and patches.

ILLUSION #1 -- White circles on a gray background produce an illusion of the circles changing colors between black and white, depending on where you focus your eyes.

ILLUSION #2 -- Diagonals moving away from the center create an illusion of depth, which makes the parallel horizontal lines seem to bend in the center.

ILLUSION #3 -- The perpendicular lines that do not match row to row create an illusion of the lines between them being not parallel.

ILLUSION #4 -- Relative sizes of other circles skew the perception of the middle circles, creating an illusion of difference in size.

ILLUSION #5 -- Circles of diamonds seem to rotate you focus your eyes on their center.