Robot Book: Build & Control 20 Electric Gizmos, Moving Machines, and Hacked Toys

How to use reuse and recycle components and supplies to build a variety of devices The 20 easy-to-build robots in this project book can be constructed for little or no cost using common household objects and repurposed materials. From learning how to turn a toothbrush, an old cell phone or pager, and scrap wire into a Brush Bot, or how to hack a toy car to hotwire a Not-So-Remote Bot, each hands-on project contains a materials list and detailed step-by-step instructions with photos. Explanations of the science and technology behind each robot--including concepts such as friction, weight and mass, center of gravity, kinetic and potential energy, electric circuitry, DC vs. AC current, and more--are also included.