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5 attacks on a red square
Click on square 1 to start the attack. A Java applet appears in a new window. |
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Click on square 2 to start the attack. A Java applet appears in a new window. Stare at the picture for at least 30 seconds and stop the movement with a click. | |||
| Click on square 3 to start the attack. A Java applet appears in a new window. Read about this colour illusion. |
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Click on square 4 to start the attack. A GIF animation appears in a new window. Read about this shape distortion. |
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Click on square 5 to start the attack. A Java applet appears in a new window.
Read about this shape distortion. |
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| 07/11/2003 | ||||