Definitions by Jason Rollette

railgun

A railgun is a single-turn coil consisting of the power source, rails, and armature. The armature is free to slide along the rails, the Lorentz force causes it to slide along the rails, away from the power source.

www. rollette.com/railgun
here is a real life example. not a toy or a video game...

railgun by Jason Rollette September 19, 2003