Heavy weapons -- Trebuchet -- Simple catapult -- Onager -- Air musket -- Ballista -- Catapult -- The finished weapons -- Heavy weapons at work.
Summary:
"Use up spare parts or forgotten items from the garage to build your own miniature siege engine! Step-by-step instructions are used in this book to demonstrate basic engineering and physics skills for kids."-- Provided by publisher.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.