Facts About Mirrors

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Mirrors are reflective surfaces that provide decorations in our homes, allow us to see what is behind us while we are driving, give us a view of the celestial neighborhood through telescopes and allow us to view the microscopic world invisible to our eyes.

Types

  • There are three types of mirrors: plane, convex and concave. Plane mirrors are flat, concave mirrors are curved inward and convex mirrors curve outward.

Surface

  • The surface of most mirrors is a continuous sheet of plate glass. Other surface materials include polished metal and fused quartz.

Backing

  • Mirror manufacturers coat the backs of glass mirrors with various reflective metals. Some common coatings are aluminum, silver and gold.

Telescopes

  • Telescopes use combinations of curved mirrors and flat mirrors to collect the light from distant objects and reflect it into the eyepiece of an observer.

Security

  • Convex mirrors, positioned at intersections in grocery stores, allow people to see around corners. Security systems use them so that a single camera can receive a wider image of the surroundings.

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