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![[DIR]](/icons/folder.gif) | Exploring the World of Chemistry_ From Ancient Metals to High-Speed Computers (9018)/ | 2022-05-02 13:46 | - | |
| Exploring the World of Astronomy_ From Center of the Sun to Edge of the Universe (9019)/ | 2022-05-02 13:46 | - | |
| Exploring the World of Physics_ From Simple Machines to Nuclear Energy (9021)/ | 2022-05-02 13:46 | - | |
| Exploring the World of Biology_ From Mushrooms to Complex Life Forms (9017)/ | 2022-05-02 13:46 | - | |
| Exploring the World of Mathematics_ From the Checker Board to the Super Computer (9020)/ | 2022-05-02 13:46 | - | |
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