Ever since the boom of spectrum analysis in the 1860s, spectroscopy has become one of the most fruitful research technologies in analytic chemistry, physics, astronomy, and other sciences. This book is the first in-depth study of the ways in which various types of spectra, especially the sun's Fraunhofer lines, have been recorded, displayed, and interpreted. The book assesses the virtues and pitfalls of various types of depictions, including hand sketches, woodcuts, engravings, lithographs and, from the late 1870s onwards, photomechanical reproductions. The material of a 19th-century engraver or lithographer, the daily research practice of a spectroscopist in the laboratory, or a student's use of spectrum posters in the classroom, all are looked at and documented here. For pioneers of photography such as John Herschel or Hermann Wilhelm Vogel, the spectrum even served as a prime test object for gauging the color sensitivity of their processes. This is a broad, contextual portrayal of the visual culture of spectroscopy in the 19th and early 20th centuries. The illustrations are not confined to spectra--they show instruments, laboratories, people at work, and plates of printing manuals. The result is a multifacetted description, focusing on the period from Fraunhofer up to the beginning of Bohr's quantum theory. A great deal of new and fascinating material from two dozen archives has been included. A must for anyone interested in the history of modern science or in research practice using visual representations.

Nearly everyone knows someone on the autism spectrum, whether it's a niece or nephew, a student in their classroom, a coworker, or a sibling, spouse, or child. One in 54 children has autism, according to the CDC, and autism is reported across racial, ethnic, and socioeconomic groups. Yet most of what people think they know about autism is wrong. On the Spectrum debunks myths with a realistic yet hope-filled deep dive into the heart, mind, and life of a Christian. Daniel Bowman, a novelist, poet, and professor, received an autism diagnosis at age thirty-five after experiencing crises in his personal and professional life. The diagnosis shed light on his experience in a new, life-giving way. In this captivating book, Bowman reveals new insights into autism, relationships, faith, and the gift of neurodiversity. Rather than viewing autism as a deficiency, Bowman teaches readers--through stories of his heartbreaks and triumphs--authentic ways to love their neighbors as themselves, including their autistic neighbors who are fearfully and wonderfully, if differently, made.

Maps are inherently unnatural. Projecting three-dimensional realities onto two-dimensional surfaces, they are abstractions that capture someone’s idea of what matters within a particular place; they require selections and omissions. These very characteristics, however, give maps their importance for understanding how humans have interacted with the natural world, and give historical maps, especially, the power to provide rich insights into the relationship between humans and nature over time. That is just what is achieved in Mapping Nature across the Americas. Illustrated throughout, the essays in this book argue for greater analysis of historical maps in the field of environmental history, and for greater attention within the field of the history of cartography to the cultural constructions of nature contained within maps. This volume thus provides the first in-depth and interdisciplinary investigation of the relationship between maps and environmental knowledge in the Americas—including, for example, stories of indigenous cartography in Mexico, the allegorical presence of palm trees in maps of Argentina, the systemic mapping of US forests, and the scientific platting of Canada’s remote lands.