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Parabolic Mirror
2004-10-19 04:45:43

Parabolic Mirror -- A parabolic reflector or parabolic dish is a reflective device formed in the shape of a paraboloid of revolution. Parabolic reflectors can either collect or distribute energy such as light, sound, or radio waves. The parabolic reflector functions due to the geometric properties of the paraboloid shape: if the angle of incidence to the inner surface of the collector...

Word of the Day
cowpooling
  • The practice of two or more parties jointly purchasing all or part of a butchered cow and dividing the meat between them.
The word 'cowpooling' was formed on the model of 'carpooling'.