Inertial Electrostatic Confinement Fusion--Talk by Bussard at Google

This is an alternative approach to magnetic confinement and inertial confinement fusion. It has an interesting history and may end up being the fusion reactor of choice for outer space applications, due the small size of reactor. This talk by Bussard is almost an hour and a half long, but if you are fascinated by unique approaches to fusion, this might hold your interest.