Season 15 Episodes24
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Light of the 21st Century
Mar 10, 197860 min
Horizon presents a documentary on the development of the Light Amplification by Stimulated Emission of Radiation device, or more commonly know as the Laser.
Seasons62
Episode Summary
"Light of the 21st Century" is episode 7 of Horizon season 15. It aired on March 10, 1978.