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This experiment serves to acquaint students with basic information on the construction and use of the periscope. To their amazement, students discover that they can observe objects from a concealed po ...
Periscopes were invented to observe things from a hidden position. They were used to see above water from submarines, in all directions from inside a tank, and above ground from trenches by soldiers d ...
Atomic submarine: warship that travels and fights under water. See more
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