Human Breath Fueled Laser

Lasers are always cool little things that we can’t get enough of, but anybody who can come up with a glass cutting laser that is fueled by carbon dioxide deserves a certain amount of praise. In case you’re trying to figure out where to get a cheap supply of carbon dioxide, it’s worth remembering that we exhale it while breathing, and this experiment used a balloon filled with human breath. Check out a video of it in action after the jump.