Dr. Theodore H. Maiman, of Hughes Research Laboratories studies a ruby crystal in the shape of a cube in a laser (Light Amplification by Simulated Emission of Radiation) which is the essential element in a new electronic device. The ruby absorbs light then casts a laser beam: a clear and intense beam of light which is "brighter than the center of the sun." New York City, New York
Une question de culture générale dans le monde des sciences!
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