365475
9781556523755
William Gurstelle is a professional engineer who has designed, constructed, and collected ballistics experiments for over 20 yearsGurstelle, William is the author of 'Backyard Ballistics Build Potato Cannons, Paper Match Rockets, Cincinnati Fire Kites, Tennis Ball Mortars, and More Dynamite Devices' with ISBN 9781556523755 and ISBN 1556523750.
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