GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Charles Simon
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George lake
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Simon Lake
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Jefferson Simon
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Detailed explanation-1: -The invention of the collapsible periscope for use in submarine warfare is usually credited to Simon Lake in 1902. Lake called his device the “omniscope” or “skalomniscope". As of 2009 modern submarine periscopes incorporate lenses for magnification and function as telescopes.
Detailed explanation-2: -HISTORICAL BACKGROUND OF PERISCOPES In the year 1854, the Frenchman Hippolyte Marié-Davy designed the first exemplar of a periscope – a sighting tube for a submarine. This contained two parallel mirrors attached to the ends at a 45° angle while facing in opposite directions (see Figure 1.0 left).
Detailed explanation-3: -A periscope is defined as an instrument used for observing over, around or through an obstacle or object which is prevented by direct line of sight. It consists of an outer case with mirrors at each end at 45° angle. These mirrors are placed parallel to the surface.
Detailed explanation-4: -periscope, optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or submerged.