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Periscope facts for kids

Kids Encyclopedia Facts
British trench periscope Cape Helles 1915
British soldier in World War I using a periscope to see from a trench
Periscope simple
Design of a persicope. The model on the left uses mirrors, the one on the right uses prisms

A periscope is an optical instrument that is used to watch a scene from cover. The classical design uses a number of mirrors or prisms, and is used in tanks and submarines.

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Periscope Facts for Kids. Kiddle Encyclopedia.