Walter Simpson

Walter Simpson is an energy professional and environmental educator who served for 26 years as Energy Officer at the State University of New York at Buffalo (UB). Walter is the author of Diesel-Electric Locomotives: How They Work, Use Energy, and Can Become More Efficient and Environmentally afficher plus Sustainable (Simmons-Boardman Books, 2019). Walter Simpson with an O scale model of the Chesapeake Ohio M-1 steam turbine electric locomotive at the Chesapeake Ohio Historical Society's Railway Heritage Center in Clifton Forge, Va. (www.cohs/heritage). afficher moins