Centrifugal Marble Cannon
How often do you get to use the words ‘Centrifugal Marble Cannon’ in a sentence? Here’s the 411. About 6 months ago, the Make blog posed a scan from a 1963 Modern Mechanics magazine that detailed the fabrication of a cute little electric BB gun that used centrifugal force to accelerate the projectiles. Here’s how old I am: I clearly remember reading the article in the magazine when it was originally published. In 1963. 45 freakin’ years ago. Yowzah!! How cool is that? Anyway, I loved the concept when I first saw it, and seeing the mechanism again kindled a thin,...
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