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Many - A quantifier that can be used with count nouns - often preceded by "as" or "too" or "so" or "that"; amounting to a large but indefinite number; "many temptations"; "a good many"; "many directions"; more than a few, more than several...

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Mirrors exhibit specular reflection. In acoustics, reflection causes echoes and is used in sonar...

A power station (also referred to as a generating station, power plant, or powerhouse) is an industrial facility for the generation of electric power. At the center of nearly all power stations is a generator, a rotating machine that converts mechanical energy into electrical energy by creating relative motion between a magnetic field and a conductor. The energy source harnessed to turn the generator varies widely...