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| Pendulum 2 | ||||
| Compare the two pendulums and test your feel for time. Learn more about these perceptual illusions. | ||||
| 06/19/2004 | ||||
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| Pendulum 2 | ||||
| Compare the two pendulums and test your feel for time. Learn more about these perceptual illusions. | ||||
| 06/19/2004 | ||||
