A periscope works by using two mirrors positioned at a 45-degree angle to each other. When you look into one end of the periscope, light from the scene above the surface reflects off the first mirror and travels to the second mirror, which reflects it down to your eye. This allows you to see over obstacles or around corners without being directly in the line of sight. Periscopes are commonly used in submarines and other applications where visibility is limited.
ks3 means key stage 3
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Wiki won't help you cheat, so get to work.
no
Periscopes typically use a combination of lenses, including prisms, to help redirect and magnify light entering the periscope. These lenses work together to ensure that the image transmitted through the periscope remains clear and focused for the viewer.
It consists of a set of high quality glass prisms. These reflect the light down the length of the periscope to the eye piece. This allows the viewer to see the surface.
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a diagram of a periscope
someone discovered the periscope
KeyStage3= three
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well there really is no antonym that i know of for periscope because a periscope is an object.