Step-by-step instructions to building more than 30 fascinating devices are included in this book for workbench warriors and grown-up geeks. Detailed illustratio

Organized by scientific topic, most of the devices in this collection of 20 projects can be built using common household products or components. Each experiment

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

Utilizing easy-to-find and inexpensive materials, this handy resource teaches desktop warriors how to build a multitude of medieval siege weapons for the modern

We’ve come a long way from the Peashooter Era: with the advent of modern household products and office supplies—binder clips, clothespins, rubber bands, bal