Karl Williams is an independent robotics researcher, electronics guru, and software developer. He is the author of the popular robotics guide "Insectronics: Build Your Own Six Legged Walking Robot" and the follow-up "Amphibionics: Build Your Own Biologically Inspired Robots," both from TAB/McGraw-Hill. A resident of Ontario, Canada, he has written for the magazines "Nuts and Volts, SERVO," and "Conformity." Winner of an IBM award for his design of a computer-controlled robotic arm, he hosts a robotics and electronics Website. He is with AGFA HealthCare Informatics, a leading medical imaging so...