As a scholar, I am a historian of technology and a medievalist. I am cross appointed to the U of T Department of History and also to the Centre for Medieval Studies , and I can supervise interested students in either of those programs. I am also associated with the Centre for Reformation and Renaissance Studies and the Museum Studies Program.
My recent scholarly work has come to focus on the way gunpowder developed at the end of the Middle Ages in Europe. My latest book, Weapons and Warfare in Renaissance Europe is now available from Johns Hopkins University Press.