Legend may have transformed the thirteenth-century English friar Roger Bacon into the Faust-like sorcerer Doctor Mirabilis, but he stands today in high regard as Europe's first great pioneer in the field of science. Bypassing the vicissitudes of Bacon's reputation, this definitive new biography by science writer Brian Clegg places the medieval monastic firmly in the turbulent and contentious intellectual atmosphere of his day. It also finds in Bacon's...