It comes with a small grappling hook, too, true believers! Railguns are awesome, if not pants-soilingly scary. Big versions are being used/tested as missile defense platforms, while they’re also ...

It’s one thing to build web shooters—another to trust them with your body weight. Watch as we take our homemade web-slinging tech to the skies (or at least the ceiling) in a wild attempt to swing like ...