Optical illusions

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OPTICAL ILLUSIONS

Transcript of Optical illusions

Page 1: Optical illusions

OPTICAL ILLUSIONS

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Look at the next slide.

Focus on the 4 small dots in the centre of the picture and look at the picture for 30-40

seconds.

Afterwards blink your eyes couple of times to the nearest wall.

What do you see?

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The SCINTILLATING GRID – black dots appear at random intersections

Focus on a single intersection, the dot does not appear. The dots disappear if you are too close or too far from the image.

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Move your head back and

forward.

What happensto the circles?

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If your eyes follow the movement of the rotating

pink dot, the dots will remain only

one color, pink.

However if you stare at the black " +" in the

center, the moving dots turns to green.

Now, concentrate on the black " + " in the center of the picture. After a short period, all the pink dots

will slowly disappear, and you will only see only a

single green dot rotating.

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Look at the wildlife painting of a Bengal tiger.

Can you find the hidden tiger in the picture?

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“the hidden tiger” is written in the tiger

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What do you see?

In black you can read the word GOOD; but the word EVIL also appears in white letters inside each black letter.

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What do you see?

You should see a face ….

but also a word.

Tilt your head to the right – the word begins with L.

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Look at the chart and say the colour and NOT the word!

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Do you see the rotating circles?

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