I am a historian of science, technology, and the environment, specializing in:
- the history and philosophy of the physical and mathematical sciences,
- the history of space science and technology, astronomy, and cosmology, and
- the history of energy resources and technological innovation in energy production, distribution, and consumption.
History of Science Society; Society for the History of Technology; American Society for Environmental History; American Historical Association; International Astronomical Union; American Astronomical Society, Historical Astronomy Division; Society for Social Studies of Science; Philosophy of Science Association; International Society for the History of Philosophy of Science; Canadian Society for History and Philosophy of Mathematics; American Mathematical Society; Mathematical Association of America.