Building a Rail Gun

The video the original author puts up is fun to watch.  They start off with a simple concept with some aluminum foil and few magnets and a 9v battery.  The end project, well its pretty intense and I don’t think I will build one.

http://hackaday.com/2013/10/15/building-a-rail-gun/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29