what is periscope and kaleidoscope?? pls don't spam
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A periscope uses a system of mirrors to view events above your head or behind your back. A kaleidoscope is a toy which uses a system of mirrors to display coloured chips in a variety of patterns (usually a hexagon).
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Periscope : a tubular optical instrument containing lenses and mirrors by which an observer obtains an otherwise obstructed field of view.
Kaleidoscope is an optical toy consisting of two mirrors at a particular angle.
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