Whether playing at defending their own castle or simply chucking pumpkins over a fence, wannabe marauders and tinkerers will become fast acquainted with Ludgar, the War Wolf, Ill Neighbor, Cabulus, and the Wild Donkey—ancient artillery devices known commonly as catapults. Building these simple yet sophisticated machines introduces fundamentals of math and physics using levers, force, torsion, tension, and traction. Instructions and diagrams illustrate how to build seven authentic working model catapults, including an early Greek ballista, a Roman onager, and the apex of catapult technology, the English trebuchet. Additional projects include learning how to lash and make rope and how to construct and use a hand sling and a staff sling. The colorful history of siege warfare is explored through the stories of Alexander the Great and his battle of Tyre; Saladin, Richard the Lionheart, and the Third Crusade; pirate-turned-soldier John Crabbe and his ship-mounted catapults; and Edward I of England and his battle against the Scots at Stirling Castle.
In 2011, Popular Mechanics Magazine added five special editors to its masthead: William Gurstelle, Jay Leno, the Mythbusters' Adam Savage and Jaime Hyneman, and Instapundit's Glenn Reynolds. There's a reason Bill is there along side those luminaries: His views on risk taking, combined with his best selling books have put him in the spotlight.
Media Attention
Long features about Bill and his ideas have run in the New York Times, The Wall Street Journal, Popular Science, the London Daily Telegraph, National Public Radio, PBS, Radio Canada, and scores of other media outlets.
Best Selling Author
Now, because of his groundbreaking views and easy writing style, he's one of the most widely read science and technology authors in the world. His best sellers include Absinthe and Flamethrowers, Backyard Ballistics, Adventures from the Technology Underground, and The Practical Pyromaniac. More than a half million copies of his books have been sold, a truly amazing amount for a technology author.
National Magazine Columnist
In addition to his books, he writes frequently on culture and technology for national magazines including Popular Mechanics, Wired, the Atlantic, and Make. Online, he is a frequent contributor to BoingBoing, Makezine, and Wired.
Popular Speaker
Bill has given lectures to groups all over the world including North America, Europe, Asia, and Australia. Select clients and their comments are available through the navigation panel to the left.
