His Ph.D. thesis was entitled An experimental investigation of the phenomena produced by the highly turbulent flow of water past a series of sharp obstacles.
Considered one of America's top authorities in the theory and practice of fluid dynamics, he was involved in diverse research projects including food preservation by atomic energy, landing of supersonic aircraft, development of upper-atmosphere research, machining of tough metals, high-temperature metallurgy, acoustics, industrial air pollution and the building of structure to resist bomb blasts.
His studies were published in numerous professional and technical journals, and he presented over 60 paper in the fields of mechanical and chemical engineering and higher education.
During his career, he was advisor, consultant or board member for a variety of corporations and political entities as well as academic, technical, scientific and military institutions and organizations.
During his association with ASME, Folsom was an honorary director, president, Wright Lecturer, and Centennial Medallion Award recipient.