When you look at the mirror, you can see an image of your face, You observe a whole image of the surrounding environment that is formed on the surface of still water, The surface...
The periscope is an instrument for observation over, around or through the object, obstacle or condition that prevents direct line-of-sight observation from the observer’s current position, The periscope is used to monitor the dangerous...
Laws of light reflection The distance between the Earth and the Moon can be measured by the reflection of a laser beam directed from the Earth towards a reflection surface placed on the Moon...
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