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| | Illusions of Distortion [encyclopedia] |
 | | This is a perfectly round circle, but the slanting lines appear to distort it. |
 | | The vertical lines are straight and parallel, but they look as if they are bowed outwards. |
 | | About, Ambiguous, Optical Art, Chimera, Distortion, Dynamic, Impossible, Moire, Motion, Unstable. |
| eluzions.com /Illusions/Distortion (282 words) |
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