Just a thread for discussing about these and your opinion on them. Just because the name has 'gun' in the name does not mean I am specifically refering to a weaponized one. For any one who does not know; A rail gun has two parallel metal rails on each side, and a moving armature in the middle, a electromagnetic wave goes up one rail, moving the armature forward, goes thru the armature, then down the other rail, this throws the projectile in question forward, using kinetic energy to fire. A coil gun uses the same electromagnetic concept, but is a barrel with metal coils around it, the electromagnetic wave will be sent down the coils, bringing the projectile with it, eventually ending and the projectile will be sped with kinetic energy, although most of the time they are not as powerful as rail guns. Honestly I see how these can be used for space travel, as making a bullet-esc shell that will burst open when its in space and hard enough to withstand the kinetic force of this. The problem would be to make it go in space, the rail length would have to be HUGE (If you have played a good game called SOMA, you would know what I am talking about) in order to get it into space. What are your thoughts on this @Roflcopter Rogers and @jeffreythe00 ?