Light From Ancient Campfires

"the first book in twenty years to gather together a comprehensive prehistoric record --

Polarization Measurement and Control in Optical Fiber Communication and Sensor Systems A practical handbook covering polarization measurement and control in optical communication and sensor systems In Polarization Measurement and Control in Optical Fiber Communication and Sensor Systems, the authors deliver a comprehensive exploration of polarization related phenomena, as well as the methodologies, techniques, and devices used to eliminate, mitigate, or compensate for polarization related problems and impairments. The book also discusses polarization-related parameter measurement and characterization technologies in optical fibers and fiber optic devices and the utilization of polarization to solve problems or enable new capabilities in communications, sensing, and measurement systems. The authors provide a practical and hands-on treatment of the information that engineers, scientists, and graduate students must grasp to be successful in their everyday work. In addition to coverage of topics ranging from the use of polarization analysis to obtain instantaneous spectral information on light sources to the design of novel fiber optic gyroscopes for rotation sensing, Polarization Measurement and Control in Optical Fiber Communication and Sensor Systems offers: A thorough introduction to polarization in optical fiber studies, including a history of polarization in optical fiber communication and sensor systems Comprehensive discussions of the fundamentals of polarization, including the effects unique to optical fiber systems, as well as extensive coverage Jones and Mueller matrix calculus for polarization analysis In-depth treatments of active polarization controlling devices for optical fiber systems, including polarization controllers, scramblers, emulators, switches, and binary polarization state generators Fulsome explorations of passive polarization management devices, including polarizers, polarization beam splitters/displacers, wave-plates, Faraday rotators, and depolarizers Extensive review of polarization measurement techniques and devices, including time-division, amplitude-division, and wave-front division Stokes polarimeters, as well as various Mueller matrix polarimeters for PMD, PDL, and birefringence measurements Premiere of binary polarization state analyzers and binary Mueller matrix polarimeters pioneered by the authors, including their applications for highly sensitive PMD, PDL, and birefringence measurements Comprehensive discussion on distributed polarization analysis techniques developed by the authors, including their applications in solving real world problems Detailed descriptions of high accuracy polarimetric fiber optic electric current and magnetic field sensors Perfect for professional engineers, scientists, and graduate students studying fiber optics, Polarization Measurement and Control in Optical Fiber Communication and Sensor Systems enables one to quickly grasp extensive knowledge and latest development of polarization in optical fibers and will earn a place in the libraries of professors and teachers of photonics and related disciplines.

A comprehensive look at the entirety of Native American history, focusing particularly on native peoples within the geographic boundaries of the United States. The history of American Indians is an integral part of American history overall—a part that is often overlooked. History of American Indians: Exploring Diverse Roots provides a broad chronological overview of Native American history that challenges readers to grapple with the elemental themes of adaptation, continuity, and persistence. The book enables a deeper understanding of the origins and early history of American Indians and presents new scholarship based on the latest research. Readers will learn a wealth of American Indian history as well as appreciate the key role American Indians played in certain significant stages of American history as a whole. The direct connections between the events in the past and many current hot-button topics—such as race, climate change, water use, and other issues—are clearly identified. The book's straightforward, chronological presentation makes it a helpful and easy-to-read scholarly work appropriate for advanced high school and undergraduate college students.

The near disappearance of the American bison in the nineteenth century is commonly understood to be the result of over-hunting, capitalist greed, and all but genocidal military policy. This interpretation remains seductive because of its simplicity; there are villains and victims in this familiar cautionary tale of the American frontier. But as this volume of groundbreaking scholarship shows, the story of the bison’s demise is actually quite nuanced. Bison and People on the North American Great Plains brings together voices from several disciplines to offer new insights on the relationship between humans and animals that approached extinction. The essays here transcend the border between the United States and Canada to provide a continental context. Contributors include historians, archaeologists, anthropologists, paleontologists, and Native American perspectives. This book explores the deep past and examines the latest knowledge on bison anatomy and physiology, how bison responded to climate change (especially drought), and early bison hunters and pre-contact trade. It also focuses on the era of European contact, in particular the arrival of the horse, and some of the first known instances of over-hunting. By the nineteenth century bison reached a “tipping point” as a result of new tanning practices, an early attempt at protective legislation, and ventures to introducing cattle as a replacement stock. The book concludes with a Lakota perspective featuring new ethnohistorical research. Bison and People on the North American Great Plains is a major contribution to environmental history, western history, and the growing field of transnational history.

This book presents a fresh perspective on rock art by considering how ancient images function in the present. It focuses on how ancient heritage is recognized and reified in the modern world, and how rock art stimulates contemporary processes of cultural identity-making.

The international bestseller from award-winning writer Mark Schatzker that reveals how our dysfunctional relationship with food began—and how science is leading us back to healthier living and eating. For the last fifty years, we have been fighting a losing war on food. We have cut fat, reduced carbs, eliminated sugar, and attempted every conceivable diet only to find that eighty-eight million American adults are prediabetic, more than a hundred million have high blood pressure, and nearly half now qualify as obese. The harder we try to control what we eat, the unhealthier we become. Why? Mark Schatzker has spent his career traveling the world in search of the answer. Now, in The End of Craving, he poses the profound question: What if the key to nutrition and good health lies not in resisting the primal urge to eat but in understanding its purpose? Beginning in the mountains of Europe and the fields of the Old South, Schatzker embarks on a quest to uncover the lost art of eating and living well. Along the way, he visits brain scanning laboratories and hog farms, and encounters cultural oddities and scientific paradoxes—northern Italians eat what may be the world’s most delicious cuisine, yet are among the world’s thinnest people; laborers in southern India possess an inborn wisdom to eat their way from sickness to good health. Schatzker reveals how decades of advancements in food technology have turned the brain’s drive to eat against the body, placing us in an unrelenting state of craving. Only by restoring the relationship between nutrition and the pleasure of eating can we hope to lead longer and happier lives. Combining cutting-edge science and ancient wisdom, The End of Craving is an urgent and radical investigation that “charts a roadmap not just for healthy eating, but for joyous eating, too” (Dan Barber, New York Times bestselling author of The Third Plate).