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Backyard ballistics : build potato cannons, paper match rockets, Cincinnati fire
Gurstelle, William.
Adult Nonfiction Q164 .G88 2001
William Gurstelle is a professional engineer who has designed, constructed, and collected ballistics experiments for over 20 years
Gurstelle, William.
Adult Nonfiction Q164 .G88 2001
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William Gurstelle is a professional engineer who has designed, constructed, and collected ballistics experiments for over 20 years
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