DIY 40 watt laser "shotgun"

[Recursion]

http://www.engadget.com/2015/06/08/homebuilt-laser-shotgun/

What could possibly go wrong?

If you thought building your own laser weapon at home was hot stuff, you haven't seen anything yet. Do-it-yourself fan Styropyro has built a laser "shotgun" whose eight 5W beams are adjustable with lenses, much like you'd adjust the choke on a conventional shotgun to narrow or widen its buckshot spread. As you might gather, 40W of combined laser power is pretty powerful -- and unbelievably dangerous. The gun can destroy everything from balloons to ping pong balls, and there are reflected beams that could easily smack someone's eye. Don't try this at home, folks. It's still an impressive feat of homebrew engineering, though, and Styropyro is hoping to make something "even crazier" before long.

[kentauros]

1. 40 watts?!

He does seem to know what he's doing. The problem will those that try to copy him without knowing what they're doing...

[Chan790]

2. ...and here I was thinking...

that takes way too long to initiate combustion...perhaps he needs to go [font size="7"]bigger[/font].

[kentauros]

3. If he gets any bigger

he may get a knock on his door by certain authorities that don't want people making stuff like that (except in a government lab.)