"William Gurstelle" downloads

Combining science, history, and DIY pyrotechnics, this book for the workbench warrior explains humankind's most useful and paradoxical tool: fire....

Ordinary folks can construct 13 awesome ballistic devices in their garage or basement workshops using inexpensive household or hardware store...

Whether playing at defending their own castle or simply chucking pumpkins over a fence, wannabe marauders and tinkerers will become...

Written for reasonable risk takers and suburban dads who want to add more excitement to their lives, this daring combination...

This is the definitive guide to designing and building warrior robots like those seen on BattleBots, Robotica, and Robot Wars....

This bestselling DIY handbook now features new and expanded projects, enabling ordinary folks to construct 16 awesome ballistic devices in...

The technology underground is a thriving, humming, and often literally scintillating subculture of amateur inventors and scientific envelope-pushers who dream...

These are the homemade machines that youve dreamed of building, from the high-voltage Night Lighter 36 spud gun to the...