Ernest Lenard (Ernie) Hall, PhD, PE, is Professor Emeritus of Mechanical Engineering and Computer Science in the School of Dynamic Systems in the College of Engineering and Applied Science at the University of Cincinnati. He was also the Paul E. Geier Professor of Robotics in the Department of Mechanical Engineering at the University of Cincinnati. He has also held joint appointments at the University of Cincinnati with the Department of Electrical and Computer Engineering and Computer Science. He regularly collaborates with faculty and students in other colleges at University of Cincinnati, as well as civic groups, including the FIRST Lego League, the Ohio Academy of Science, and the Society of Manufacturing Engineers (Chapter 21). While consulting with the Oak Ridge National Laboratory,