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| 標題 : | Optical for Kids- Optical illusions |
| 分類 : | V.A. |
| 連結 : | http://www.optics4kids.org/home/content/illusions/ |
| 點擊率 : | 1613 |
| 加入時間 : | 2017/07/17 |
| 附件 : | |
| 描述 : | It's very interesting - use color, light and patterns to create images that can be deceptive or misleading to our brains |