Ancient DIY Electric Centrifuge BB Gun To Shoot Your Eye Out
December 30th, 2006

This DIY electric centrifuge BB gun may be from a 1963 issue of Pop Mech. But that doesn’t mean it can’t hurl pellets at ridiculous velocity. According to the article, the muzzle velocity will reach 5,000 feet per second, which is better than a rifle. Click on the image for the full schematic.
DIY centrifuge weapon from 1963 Popular Mechanics [The Boing, thanks Xeni]