Crazy futuristic vortex gun can disperse smoke to aid firefighters (Yahoo! News)

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Yahoo! News - A futuristic-lookingÂ*gun that looks like it belongs in anÂ*Austin Powers movie may one day help firefighters save lives.Â*Vortex guns that can expel rings of smoke aren't new. But a company calledÂ*Batelle designed one that can shootÂ*electrified smoke rings that can …

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