This Rifle Shoots Lasers

Sometimes, a fancy new cutting tool just needs that special human touch. TWI, a British company with a long history of welding innovation, recently added a pistol grip to a 5-kilowatt industrial cutting tool. Scary as the idea of a handheld laser cutting tool is, the machine was originally attached to automated industrial machines. The pistol grip and trigger add flexibility, the same way a handheld Dustbuster is easier to maneuver than a shopvac. The tool fires a beam of light with a wavelength...