Lasers: "The Conquest of Light" circa 1962 AT&T 9min - YouTube
Top: a packaged laser diode shown with a penny for scale. Bottom: the laser diode chip is removed from the above package and placed on the eye of a needle for scale. (Photo credit: Wikipedia ) Lasers: "The Conquest of Light" circa 1962 AT&T 9min - YouTube : " " Lasers: "The Conquest of Light" circa 1962 AT&T 9min http://youtu.be/xzlferSFFZI "Tells the story of the laser, a device with unlimited potential in many areas, explaining how a laser works and what it is." Public domain film from the Library of Congress Prelinger Archive, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and equalization. http://en.wikipedia.org/wiki/Laser A laser is a device that emits light (electromagnetic radiation) through a process of optical amplification based on the stimu...