Blast from the past - build your own laser

[Alaric Darconville]

This is from the November 1964 issue of Popular Science:
http://books.google.com/books?id=MyYDAAAAMBAJ&lpg=PP1&pg=PA62#v=onepage&q=&f=false

Pops (blue) balloons and everything!

 

[bshanahan14rulz]

I made a laser once, out of aluminum foil, two metal L-channels, litter box liners, lots of duct tape, and a large transformer :twothumbs

Produced short pulses of ultraviolet light. I was actually amazed that it worked when put it all together.