MIRROR

A mirror reflecting of vase

incoming light rays from an object viewed in a mirror are reflected back at exactly the same, but reversed, angle. The brain, assuming that the reflected rays have reached the eye in straight lines, works backwards along the light paths and image behind the mirror.

Entertainment

• Illuminated rotating disco balls covered with small mirrors are used to cast moving spots of light around a dance floor.
• The hall of mirrors, commonly found in amusement parks, is an attraction in which a number of distorted mirrors are used to produce unusual reflections of the visitor.
• Mirrors are employed in kaleidoscopes, personal entertainment devices invented in Scotland by Sir David Brewster.
• Mirrors are often used in magic to create an illusion. One effect is called Pepper's ghost.



A dielectric mirror used in laser

• Mirror mazes, often found in amusement parks as well, contain large numbers of mirrors and sheets of glass. The idea is to navigate the disorientating array without bumping into the walls. Mirrors in attractions like this are often made of plexiglass as to assure that they do not break.