The author holds a Ph.D. in Physics from the University of Waterloo (Canada) and has published over 30 technical and semi-popular-level papers on the Manhattan Project and related nuclear history in publications such as American Journal of Physics, The Physics Teacher, European Journal of Physics, Natural Science, American Scientist, Physics & Society and Physics in Perspective. In 2009 he was made a Fellow of the American Physical Society in recognition of his contributions " ... to the history of both the physics and the development of nuclear weapons in the Manhattan Project."