I am working on a project for graduation and I am writing a paper on rail guns, but I am having trrouble understanding the basic principle behind it, Loretnz Force. I've tried to look online for a good site that explains it in laymens terms, but I cant seem to find one. I know that current flows one way on one rail and int he opposite direction, connected by an armature. And a force is created pushing the armature forward. Can someone explain why this force occurs? I thought I read somewhere that the "opposite reaction" of the force pushing the projectile is a force pushing the rails apart. Is this true? And if so does that mean that it doesnt have recoil backwards like conventional guns and the "recoil" is sidewards? Any other information about the physics of railguns would be very much appreciated. And please respond as if you where explaining it to a highschool senior that is in the middle of his AP Physics BC course that has only done mechanical physics so far.