He emergence of modern science is a history of disentanglement, as science detached itself first from religion and then from philosophy. Jennifer Trusted in Physics and Metaphysics argues that science -- in its haste to tear itself from its historical links -- has neglected the various roles religious and philosophical ideas have actually played and continue to play in scientific thinking. This book seeks to redress the balance by exploring how metaphysical beliefs have functioned in the history of scientific inquiry and discovery. By examining the history of science from the eleventh century to the present, this book shows how religious and mystical beliefs, as well as philosophical speculation, have had a considerable role in motivating scientists and inspiring scientific inquiry. Physics and Metaphysics presupposes no technical knowledge of either philosophy or science, and as such it is an ideal introduction to science and the importantforces that have shaped its history and ideas.