Cited frequently, but analyzed rarely, the rise of the synthetic dyestuffs industry and the nature of its technology have, until the present work, remained poorly understood. This has led to the perpetuation of several misconceptions, such as the belief that the industry was wholly science-based from the start.

Heinrich Caro (1834-1910) was the inventor of new chemical processes that in the two decades commencing in 1869 enabled BASF of Ludwigshafen, Germany, to take first place among manufacturers of synthetic dyestuffs. The cornerstones of Caro's success were his early training as calico (cotton) printer in Germany, and his employment at a chemical firm in Manchester, England. Caro was a creative research chemist, a highly knowledgeable patent specialist and expert witness, and a brilliant manager of science-based chemical technology. This first full-length scientific biography of Heinrich Caro delineates his role in the emergence of the industrial research laboratory, the forging of links between academic and industrial chemistry, and the development of modern patent law. Major chemical topics include the rise of classical organic chemistry, collaboration with Adolf Baeyer, artificial alizarin and indigo, aniline dyes, and other coal-tar products, particularly intermediates.

A compelling exploration of the mysteries of environmental toxicity and the community of “sensitives”—people with powerful, puzzling symptoms resulting from exposure to chemicals, fragrances, and cell phone signals, that have no effect on “normals.” They call themselves “sensitives.” Over fifty million Americans endure a mysterious environmental illness that renders them allergic to chemicals. Innocuous staples from deodorant to garbage bags wreak havoc on sensitives. For them, the enemy is modernity itself. No one is born with EI. It often starts with a single toxic exposure. Then the symptoms hit: extreme fatigue, brain fog, muscle aches, inability to tolerate certain foods. With over 85,000 chemicals in the environment, danger lurks around every corner. Largely ignored by the medical establishment and dismissed by family and friends, sensitives often resort to odd ersatz remedies, like lining their walls with aluminum foil or hanging mail on a clothesline for days so it can “off-gas” before they open it. Broudy encounters Brian Welsh, a prominent figure in the EI community, and quickly becomes fascinated by his plight. When Brian goes missing, Broudy travels with James, an eager, trusting sensitive to find Brian, investigate this disease, and delve into the intricate, ardent subculture that surrounds it. Their destination: Snowflake, the capital of the EI world. Located in eastern Arizona, it is a haven where sensitives can live openly without fear of toxins or the judgment of insensitive “normals.” While Broudy’s book is wry, pacey, and down-to-earth, it also dives deeply into compelling corners of medical and American history. He finds telling parallels between sensitives and their cultural forebears, from the Puritans to those refugees and dreamers who settled the West. Ousted from mainstream society, these latter-day exiles nonetheless shed bright light on the anxious, noxious world we all inhabit now.

In the twentieth century, dyes, pharmaceuticals, photographic products, explosives, insecticides, fertilizers, synthetic rubber, fuels, and fibers, plastics, and other products have flowed out of the chemical industry and into the consumer economies, war machines, farms, and medical practices of industrial societies. The German chemical industry has been a major site for the development and application of the science-based technologies that gave rise to these products, and has had an important role as exemplar, stimulus, and competitor in the international chemical industry. This volume explores the German chemical industry's scientific and technological dimension, its international connections, and its development after 1945. The authors relate scientific and technological change in the industry to evolving German political and economic circumstances, including two world wars, the rise and fall of National Socialism, the post-war division of Germany, and the emergence of a global economy. This book will be of interest to historians of modern Germany, to historians of science and technology, and to business and economic historians.

Indiana-born author Annie Fellows Johnston was the creator of several series of children's books that attained widespread popularity in the early twentieth century. The charming novel Georgina of the Rainbows will cast an enchanting spell on girls looking for something more timeless and classic than the tween drama and supernatural fluff passed off as juvenile fiction these days.

Color your world with rainbows! This clever snap-together rainbow maker catches sunlight and projects tiny rainbows into your room like a disco ball. The included book is chockfull of information about how rainbows form: the science of sunlight, prisms, and the very special weather conditions under which rainbows might appear. Activities and experiments include different ways you can mimic rainbow effects, including rainbow slime, a rainbow volcano, a rainbow bubble snake, and much, much more. Comes with: 3 clear crystals. 3 silver rings, 2 suction cups, 3 holographic plastic pieces, motor with wires, battery box with alligator clips, plastic gear box.