Here is Sam sensing his way around a track on the
floor. This guy can move along a track on his own or
at your command, speed up, and sound a horn.This is the circuit for Sensitive Sam, whom you meet in
Chapter 13. This maze of electronic gizmos can be controlled
with a radio remote control in combination with sensors that
allow Sam to follow a track using his own instincts.009683 ci_f.qxd 6/1/06 3:58 PM Page 2