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John Pfotenhauer

John Pfotenhauer

Expert on cryogenics and the science of low temperatures

Professor, mechanical engineering, engineering physics College of Engineering Work: 608-263-4082 — Home and cell phones available upon request Home page


  • Refrigeration and material properties at low temperatures
  • Helium gas recovery and liquefaction
  • Study abroad in Hangzhou, China
  • Applied superconductivity


  • President, Cryogenic Engineering Conference, 2005-09
  • Author, "Coolit," an online instructional game teaching principles of cryogenic design
  • Initiated summer semester in China for undergraduate engineering students, 2008