The Art of the Catapult
William Gurstelle
With some scrap wood, rope, hammer, nails, and this book, build seven historic catapults including Ludgar the War Wolf, God's Stone Thrower, Cabulus, and the Wild Donkey -- simple yet sophisticated hurling machines that rely on the fundamentals of math and physics using levers, force, torsion, tension, and traction.
კატეგორია:
წელი:
2004
გამომცემლობა:
Chicago Review Press
ენა:
english
გვერდები:
196
ISBN 10:
1556525265
ISBN 13:
9781556525261
ფაილი:
MOBI , 4.50 MB
IPFS:
,
english, 2004