Junk drawer physics : 50 awesome experiments that don't cost a thing Mercer, Bobby 1961- Book J 530.078 Mer Location Collection Call number Victoria Juvenile J 530.078 Mer Available Place Hold
The robot book : build & control 20 electric gizmos, moving machines, and hacked toys Mercer, Bobby 1961- Book - 2014 J 629.892 Mer Location Collection Call number Stamford Juvenile J 629.892 Mer Available Place Hold