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Photons

How to Make a Laser From a Gin and Tonic

Popular Mechanics - By Olivia Koski

It was the summer of 1969. Scientists in Rochester, N.Y., prepared to fire up an experimental laser. Everything was in place—from the cooling system to ensure the laser didn't burst into flames to the warning lights informing other researchers to stay away. It was in every way a typical day in a …

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