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| Optical illusion |
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Moving circles
Look at the circles to the left. They look like they’re moving, but try looking directly at one of them!
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Courtyard or balcony?
Look at the picture below. Do you see a courtyard or a balcony?
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| Optical Illusions |
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| wavy ropes |
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| Wavy or round?
Look over at the wavy ropes, do they look like perfect circles? Although they don't look perfect, they are!
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One large ball? Or the same size?
Does the ball further away look larger? They are actually exactly the same size!
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| two balls |
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| Blind spot |
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- Close your right eye, or cover it with your hand
- Stare at the black circle (below)
- While looking at the circle, use 'side' (peripheral) vision to see the cross
- Slowly move your head towards the screen
- The cross should completely disappear
- Move closer, and it will re-appear!
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