One of America's foremost engineering scientists, Ronald Probstein is Ford Professor of Engineering, Emeritus at the Massachusetts Institute of Technology. His undergraduate training was at New York University's night school and his graduate work in aeronautical engineering and physics at Princeton. He has played a principal role in some of the most important scientific and technical achievements in the post World War II era, involving spacecraft and ballistic missile reentry physics, hypersonic flight theory, comet astrophysics, desalination, synthetic fuels, and the electrokinetic remediatio...