Any kid knows NERF guns are a source of endless fun. Whether in a play room or a college dorm, you’re never far from a NERF battle. But have you ever stopped to think how those guns might work? Bill Hammack, a professor from the University of Illinois, is here to answer that question for you.
As Bill demonstrates, NERF guns depend entirely on air restriction to fire its foam bullets. With the help of a cleverly designed plastic trigger and a small spring, air inside the gun is compressed and then released. This compressed air shoots the NERF bullet out towards siblings and coworkers everywhere. So next time you find yourself caught in the middle of a NERF war you can take a moment or two to thank the wonders of engineering.