The robot book : build & control 20 electric gizmos, moving machines, and hacked toys / Bobby Mercer.
"The 20 easy-to-build robots in this project book can be constructed for little or not cost using common household objects and repurposed materials."--
Chicago, Illinois :
Chicago Review Press,
|Series:||Science in motion (Chicago Review Press)
Walker Library - Curriculum Collection - Juvenile - 3rd Floor
Pull and Hold