What Is A Laser?



We know now what a laser is, and what a powerful tool lasers are.  In the 1960’s though, when newspapers and science journals were trying to explain this new kind of light source, it was an entirely different story.


Of course the usual battle over who invented what didn’t help.




Still there’s video.

A video from MIT.

And a short video from my friend at Jefferson lab, Dr Michelle Shinn, the laser lady.


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