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davrosthedalekyesterday at 12:51 PM1 replyview on HN

In addition, lasers were long believed to be a scientific novelty without any real world use.


Replies

jacquesmyesterday at 11:43 PM

What's interesting is how many things can be made to lase, and how many ways there are to do it. The list appears to be never ending and new entries are made all the time.

https://en.wikipedia.org/wiki/List_of_laser_types