In 1995, Kevin Costner released Waterworld, a grand post-apocalyptic mov...  ...d still has a reputation as a failure. Yet for Costner , it wasn't. The movie inspired him to learn more...  ...es centrifugal force to separate oil from water. Costner ’s partner, the companyâ€...

On paper, it looks a lot like something from a...  ...weight and adaptable, it's also fully endorsed by Kevin Costner , a friend of Brown's who invested in BodyGuard (g...  ...Guard (get it?). Get more details (and a video of Costner and Brown) on PopSci. http://www.popsci.com/di...