B.S., Nuclear Engineering, MIT. M.S., Nuclear Engineering, MIT, 1987. Engineer, EG&G Idaho, Inc., 1986-1987. Teacher Research Associate, Argonne National Laboratory, 1992. Teaching Associate, Chemistry, Cornell University, 1993-2001. Teaching Associate, Physics, Cornell University, 2000-2006. Adjunct Professor, Chemistry, Yonsei University, 2009. Research Professor, Physics, Pohang University of Science and Technology, 2010-2011. Teaching Associate, Physics, Cornell University, 2011-2015. Senior Lecturer, Physics, Cornell University, 2015-present.