David S. Armstrong is a Professor of Physics at the College of William and Mary in Williamsburg, Virginia. He received his education in Canada, with degrees in physics from McGill University (B.Sc), Queen’s University (M.Sc.) and the University of British Columbia (Ph.D.). He did post-doctoral research with Virginia Tech, working at the TRIUMF laboratory in Vancouver, and with the University of California (Berkeley), working at CERN in Geneva, before coming to William & Mary. His field of research is experimental nuclear and particle physics; he has conducted research using beams of protons, muons, pions, antiprotons, photons and electrons. Recently, most of his research has been conducted at the Thomas Jefferson National Accelerator Facility, in Newport News, Virginia. He has had the privilege of teaching physics at the undergraduate and graduate level at William & Mary, and mentoring undergraduate and graduate students in nuclear physics research projects. He enjoys reading, sailing, and playing jazz guitar.