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• How it works
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A laser is a device used to create a narrow, intense beam of very bright light. Laser stands for Light Amplification by Stimulated Emission of Radiation. The light emitted by a laser, either visible light or invisible infrared light, differs from the light emitted by a normal lightbulb in three ways. First, laser light is highly concentrated and moves in a particular direction. Normal light is emitted from its source in all directions. Second, laser light is composed of a single color or wavelength. Third, laser light is coherent, meaning all its light waves are synchronized (vibrating in exactly the same way). These combined properties allow laser light to transmit large amounts of energy or information over a great distance.

How it works

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