Optical Box । science working model

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More simple Way to make 3d hologram box screen

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Build a Bottle Rocket So Powerful It Will Shock You!

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How to make working model of a wind turbine from cardboard | school project

How to Make DNA Model Using Clay || Rotating DNA Model

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Convex and Concave Lenses

Origami Airplane | Paper Jet Frostbite flies very far!!! | 飞得最远的纸飞机！

Reflection of light, school project | Very easy to make

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Geometric Optics

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