CHRISTOPHER J. T. LEWIS teaches the history of science at the University of Cambridge. He studied natural science at Cambridge and the history of science at Imperial College, London. He has held research fellowships at the Warburg Institute, University of London, and the University of Padua in Italy. During the 1980s and 1990s, he worked as a tutor and lecturer in science and mathematics and the history of science, mathematics, and technology for the Open University.