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内容简介

Ordinary folks can construct 13 awesome ballistic device s in their garage or basement workshops using inexpensive household or hardware store materials and this step-by-step guide. Clear instructions, diagrams, and photographs show how to build projects ranging from the simple -- a match-powered rocket -- to the more complex -- a scale-model, table-top catapult -- to the offbeat -- a tennis ball cannon. With a strong emphasis on safety, the book also gives tips on troubleshooting, explains the physics behind the projects, and profiles scientists and extraordinary experimenters such as Alfred Nobel, Robert Goddard, and Isaac Newton. This book will be indispensable for the legions of backyard toy-rocket launcher s and fireworks fanatics who wish every day was the fourth of July.

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