Paul S. Steif is a Professor of Mechanical Engineering at Carnegie Mellon University. He received a Sc.B. in engineering from Brown University (1979) and M.S. (1980) and Ph.D. (1982) degrees from Harvard University in applied mechanics. He has been active as a teacher and researcher in the field of engineering education and mechanics. His research has focused on student learning of mechanics concepts and developing new course materials and classroom approaches. Drawing upon methods of cognitive and learning sciences, he has led the development and psychometric validation of the Statics Concept Inventory – a test of statics conceptual knowledge. He is the co-author of Open Learning Initiative (OLI) Engineering Statics, and he is the author of a new textbook Mechanics of Materials, published by Pearson.
Luoting Fu has a BS in aerospace engineering from Shanghai Jiao Tong University, and an MS and PhD in mechanical engineering from Carnegie Mellon University. This work was performed when he was with the Visual Design and Engineering Lab in the Department of Mechanical Engineering at Carnegie Mellon University.