Drone technology has advanced markedly in the last few years, with improved stability and handling making them easier than ever to fly. But whether through mechanical malfunction or sheer pilot incompetence, there will always be occasions when we're left watching helplessly as our crippled quadcopter plummets from the sky as if it was never meant to be up there in the first place. One solution is to stick a parachute on the drone that automatically activates when it detects problems. Such a system would not only save the drone from breaking into multiple pieces when it hits terra firma, but also reduce the risk of injury if the machine lands on someone's head on the way down. Among a growing number of such offerings is one from Austria-based Drone Rescue, which has been working on incorporating parachutes into drones for a while now.