Ethan Brue (PhD, Iowa Sate University) is a professor of engineering at Dordt University. Previously he worked as an engineering consultant in the energy generation sector and as a research and development engineer in the agricultural science and technology industry. He has served in industry as an R & D engineering project leader for DuPont: Pioneer and as a mechanical engineering consultant in the Power Division at Black & Veatch. He is a licensed Professional Engineer (P.E.) in the state of Iowa. His research interests include thermochemical reactor design, fluidization, biomass gasification and combustion, solar energy engineering, and the history of science and technology. He lives in Sioux Center, Iowa, with his wife, Donna, and their children.