What Year Was the Periscope Invented?

Answer

The periscope was invented in 1450 by a person called Johann Gutenburg. The periscope was initially invented to help people could see over people's heads in crowds or up and around the corner in trenches. It is an optical device that has been adapted for conducting observations from a concealed or protected position.
Q&A Related to "What Year Was the Periscope Invented"
so that dora the explora could see blue bear around the corner.
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The Navy attributes the invention of the periscope (1902) to Simon Lake and the
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Periscope. From Wikipedia, the free encyclopedia. Jump to: navigation, search. Search and attack periscopes of a French-built Scorpène class submarine.A periscope is an instrument
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Johannes Gutenberg. Johannes Gensfleisch zur Laden zum Gutenberg (1398 – February 3, 1468) the German blacksmith, goldsmith, printer, and publisher who introduced printing to
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