Laser fans rejoice! Patrick Priebe has built a real-life laser gatling gun. It's powered by six blue 1.4-watt Class 4 lasers that are triggered by radio remote control - "a transmitter is in the main body of the gun, while a receiver is in the turret." Continue reading for a video and more information.
The turret speed can be controlled using a knob on the underside of the gun, while four ball bearings keep that turret spinning relatively smoothly. The motor and aiming laser are powered by eight AA batteries, and the six blue lasers run off four parallel 18650 lithium-ions.