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Dan Spangler built this propane combustion cannon and uses it to fire soda cans, tennis balls, and even a small camera across the backyard of MAKE HQ. This is an archived clip from Make: Live. Go to http://makezine.com/ for information about the show.

If you're having trouble watching this video, try downloading the latest version of Flash Player or contacting your IT department.

Have any comments or questions about our video editions of IMPO? Or do you have a video you'd like to see featured in one of our deployments? Email me at Rachel.Immel@advantagemedia.com.

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