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| Illusions (Sight) |
| A segment from Bill Nye the Science Guy on illusions and sight. |
| http://www.sqooltools.com/edvideos/sciencevideos/billnye/illusions.html |
| From: Human Body |
| Hits: 21 |
| Date: Apr 18, 2008 |
| Votes: 0 |
| Rating: 0.00 |
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