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In many areas in Africa children survive with only one liter water a day. On the other hand, there is no education resource in some area in Africa. Every child has the right to explore and discover the world. Why don’t we make something cheap(for example a mineral water bottle) an interesting tools to help them? Through the low-cost injection molding process we make the bottom of the mineral bottle into a convex lens. And the bottle caps is a concave lens, simple optical principle makes the empty bottle a telescope and a microscope. The cardboard box will not be wasted, it can be assembled into a simple microscope stage and telescope shelf.
Bergische Universität Wuppertal