Dr. Marshall graduated from Virginia Tech in 1966 with a degree in Aerospace Engineering and began his professional career with the Boeing Company working on the Apollo Moon Landing project. Following receipt of his Master's Degree in 1970 from the University of Alabama in Huntsville, he returned to Virginia Tech and received his Ph.D. Degree in Engineering Science and Mechanics in 1974. Dr. Marshall then started his 34 year career with the DuPont Company, retiring in 2008 as a DuPont Fellow - DuPont's highest research position. Throughout his career, Dr. Marshall has been known for his positi...