I'm building a gun at school...
Well, a gauss gun any way.
ALso known as coaxial accelerators, gauss guns use magnetism to accelerate a ferite material. Ideal uses for such devices include launching payloads into space.
It's my physics 115 class and everybody has a class project they have to complete, I still have like 10 weaks to do it so time isn't a crush. I asked my teacher if it would be ok if I built a coaxial accelerator (gauss gun) for the project. She said that a guass gun was more of a 116 project. So she suggested that I make it a project spanning both semesters (115 and 116) as there is a project for each. She suggested that this semester I focus on making a scale model using PM's (perma magnets) and determine the accelerations and launching velocity based on the balls projectory. Then next semester for the 116 project I could focus more on the mathematics behind it and build an electromagnet gauss gun and do some theory to determine epected performance and compare it to experimental values..
So all in all she basicly said - go ahead and make a guass gun and don't even worry about explaining, or any of the real science behind it, not yet anyway.. Lol this is great.
I don't supose any of you have done such a project?
For good sport, I'll go ahead and link you guys to a site that shows how to make a home made gauss gun.