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Gurstelle - Defending your castle: build catapults, crossbows, moats, bulletproof shields, and more defensive devices to fend off the invading hordes

Defending your castle: build catapults, crossbows, moats, bulletproof shields, and more defensive devices to fend off the invading hordes

80

Gurstelle

Defending your castle: build catapults, crossbows, moats, bulletproof shields, and more defensive devices to fend off the invading hordes

Gurstelle - Backyard Ballistics: Build Potato Cannons, Paper Match Rockets, Cincinnati Fire Kites, Tennis Ball Mortars, and More Dynamite Devices

Backyard Ballistics: Build Potato Cannons, Paper Match Rockets, Cincinnati Fire Kites, Tennis Ball Mortars, and More Dynamite Devices

60

Gurstelle

Backyard Ballistics: Build Potato Cannons, Paper Match Rockets, Cincinnati Fire Kites, Tennis Ball Mortars, and More Dynamite Devices

No cover

No cover

80

Gurstelle

The practical pyromaniac: build fire tornadoes, one-candlepower engines, great balls of fire, and more incendiary devices

No cover

No cover

60

Gurstelle

Adventures from the technology underground : catapults, pulsejets, rail guns, flamethrowers, tesla coils, air cannons and the garage warriors who love them