The light refraction The refraction of light occurs when the light passes across the boundary between two media, It is the change of light path when it travels from a transparent medium to another...
The mirage The mirage can occur on the seas or in the deserts, it is a natural phenomenon that takes place on the desert at noon especially in the summer times, where the objects...
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...
