The Tangled Chain

This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1976.

Did you know that any straight-line drawing on paper can be folded so that the complete drawing can be cut out with one straight scissors cut? That there is a planar linkage that can trace out any algebraic curve, or even 'sign your name'? Or that a 'Latin cross' unfolding of a cube can be refolded to 23 different convex polyhedra? Over the past decade, there has been a surge of interest in such problems, with applications ranging from robotics to protein folding. With an emphasis on algorithmic or computational aspects, this treatment gives hundreds of results and over 60 unsolved 'open problems' to inspire further research. The authors cover one-dimensional (1D) objects (linkages), 2D objects (paper), and 3D objects (polyhedra). Aimed at advanced undergraduate and graduate students in mathematics or computer science, this lavishly illustrated book will fascinate a broad audience, from school students to researchers.

Excerpt from A Tangled Chain, Vol. 2 of 2 As the months drifted slowly by, Liza Standen began to realise that life was, after all, a far greater puzzle than she had expected it to be. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

This original examination of the spiritual narratives of conversion in the history of American Protestant evangelical religion reveals an interesting paradox. Fervent believers who devoted themselves completely to the challenges of making a Christian life, who longed to know God's rapturous love, all too often languished in despair, feeling forsaken by God. Ironically, those most devoted to fostering the soul's maturation neglected the well-being of the psyche. Drawing upon many sources, including unpublished diaries and case studies of patients treated in nineteenth-century asylums, Julius Rubin's fascinating study thoroughly explores religious melancholy--as a distinctive stance toward life, a grieving over the loss of God's love, and an obsession and psychopathology associated with the spiritual itinerary of conversion. The varieties of this spiritual sickness include sinners who would fast unto death ("evangelical anorexia nervosa"), religious suicides, and those obsessed with unpardonable sin. From colonial Puritans like Michael Wigglesworth to contemporary evangelicals like Billy Graham, among those who directed the course of evangelical religion and of their followers, Rubin shows that religious melancholy has shaped the experience of self and identity for those who sought rebirth as children of God.

Through close analysis of texts, cultural and civic communities, and intellectual history, the papers in this collection, for the first time, propose a dynamic relationship between rhetoric and medicine as discourses and disciplines of cure in early modern Europe. Although the range of theoretical approaches and methodologies represented here is diverse, the essays collectively explore the theories and practices, innovations and interventions, that underwrite the shared concerns of medicine, moral philosophy, and rhetoric: care and consolation, reading, policy, and rectitude, signinference, selfhood, and autonomy-all developed and refined at the intersection of areas of inquiry usually thought distinct. From Italy to England, from the sixteenth through to the mid-eighteenth century, early modern moral philosophers and essayists, rhetoricians and physicians investigated the passions and persuasion, vulnerability and volubility, theoretical intervention and practical therapy in the dramas, narratives, and disciplines of public and private cure. The essays are relevant to a wide range of readers, including cultural, literary, and intellectual historians, historians of medicine and philosophy, and scholars of rhetoric.