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Военная историяThe Art of the Catapult

The Art of the Catapult
Автор: William Gurstelle
Название: The Art of the Catapult
Издательство: Chicago Review Press
Год: 2004
Формат: PDF (rar+3%)
Размер: 54,57 Мб
Язык: Английский
Количество страниц: 172
Описание: The Art of the Catapult is a collection of ten working catapult projects. It offers a fascinating look at world history, military strategy, and physics, related with alighthearted touch. The historical context helps to make the projectsinteresting. Instructions are clear, with full materials lists,helpful diagrams, and no skipped steps. Saw and drill are oftenrequired, along with hardware store purchases such as PVC pipe orspecifically sized wood. Some of the finished results are large (5 x5 ) construction with considerable flinging power, while a couple aresmaller, tabletop-sized models that still propel successfully. Adult supervision is required.
Для сайта: www.eknigi.org

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