Meghan Reedy The Gauss Rifle - MIT OpenCourseWare
https://ocw.mit.edu/courses/3-a08-attraction-and-repulsion-the-magic-of-magnets-fall-2005/234b1fdf3985fbb9b4460a162f8522d9_gauss_rifle.pdf
The energy in the Gauss Rifle comes from the second ball following each magnet moving from a position of higher energy to lower energy. The first ball in each pair touches the magnet, and thus cannot move any closer. However, if it were taken out, the second ball would roll to touch the magnet. In the final configuration of the gun, there are ...
DA: 21 PA: 73 MOZ Rank: 72