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How a Kaleidoscope Works by api-352192525 is a document available to read on EtoBox.

Kaleidoscope is an optical instrument that uses reflections to create symmetrical patterns from objects. It is made by cutting glass into triangular prisms, gluing them together, covering with paper, and looking through to see beautiful symmetrical images. The tube-shaped kaleidoscope was invented in 1816 and there are many varieties that use different materials like colored glass or contain objects in the end chamber.

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api-352192525

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EN