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by William Gurstelle
Art of the Catapult is a hands-on engineering adventure that teaches kids how to design and build their own catapults and ballistas using simple materials. Through clear instructions and creative projects, young builders will discover the physics and mechanics behind these ancient contraptions while developing problem-solving skills and a deeper appreciation for engineering and design.
Souvenir Press Limited
192
9781556526879
2004-01-01
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