Emyr Macdonald is a professor of Physics at Cardiff University, specialising in the nanoscience of molecular materials. He has taught a variety of topics since 1988, including a fourth year course on the physics of large molecules in life. Issues relating to science and faith in academic and evangelistic contexts are a long-standing interest for him. Emyr is a Welsh speaker brought up in the Aberystwyth area. He and Elaine have been at Thornhill Church in Cardiff since 1993.