Optical illusions

Post on 07-Aug-2015

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Transcript of Optical illusions

OPTICAL ILLUSIONS

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?

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.

Move your head back and

forward.

What happensto the circles?

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.

Look at the wildlife painting of a Bengal tiger.

Can you find the hidden tiger in the picture?

“the hidden tiger” is written in the tiger

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.

What do you see?

You should see a face ….

but also a word.

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

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

Do you see the rotating circles?