A young man and his handheld 40 Watt Laser. What could inspire more confidence? As he himself put it, "There's no good reason for anybody to own anything this powerful." Yet he does. It's an ingenious-looking device, and in the video, YouTube user styropyro uses it to ignite a number of inflammable materials, including paper, flash paper, black powder, wood, and some trimethylsomethingoranother solution. It burns purty. [Via Digg]
Check It Out: That Guy Who Built a Handheld 40-Watt Laser