>>14
利点ていうか
http://www.coilgun.info/theorymath/electroguns.htm
http://techfreep.com/magnets-not-rockets-could-fling-satellites-into-space.htm
http://www.centauri-dreams.org/?p=458
http://www.astronautix.com/lvs/julncher.htm
http://www.popsci.com/technology/article/2010-01/cannon-shooting-supplies-space
http://www.popsci.com/military-aviation-space/article/2008-02/navy-tests-32-megajoule-railgun
使われ方のいろいろ