Smoke Ring Gun Could Deliver Pepper Spray At a Blinding 90MPH [Video]

Smoke rings from a toy gun don't do much more than entertain a child. But by giving them an electrical charge, a company called Battelle has discovered a way to make them more useful for firefighting and even crowd control. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/2YlxFwqUz04/smoke-ring-gun-could-deliver-pepper-spray-at-a-blinding-90mph

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