Jonathan A. Dantzig is Professor of Mechanical Engineering, Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign. His research focuses on materials processing - especially solidification and casting processes, finite-element methods, heat transfer, and fluid dynamics. Charles L. Tucker III is W. Grafton and Lillian B. Wilkins Professor, Department of Mechanical and industrial Engineering, University of Illinois at Urbana-Champaign. His research interests include the processing of polymers and composite materials, the modeling and simulation of manufacturing processes, and the use of numerical methods.