front cover of Chasing Molecules
Chasing Molecules
Poisonous Products, Human Health, and the Promise of Green Chemistry
Elizabeth Grossman
Island Press, 2011
Each day, headlines warn that baby bottles are leaching dangerous chemicals, nonstick pans are causing infertility, and plastic containers are making us fat. What if green chemistry could change all that? What if rather than toxics, our economy ran on harmless, environmentally-friendly materials?
 
Elizabeth Grossman, an acclaimed journalist who brought national attention to the contaminants hidden in computers and other high tech electronics, now tackles the hazards of ordinary consumer products. She shows that for the sake of convenience, efficiency, and short-term safety, we have created synthetic chemicals that fundamentally change, at a molecular level, the way our bodies work. The consequences range from diabetes to cancer, reproductive and neurological disorders.
 
Yet it’s hard to imagine life without the creature comforts current materials provide—and Grossman argues we do not have to. A scientific revolution is introducing products that are “benign by design,” developing manufacturing processes that consider health impacts at every stage, and is creating new compounds that mimic rather than disrupt natural systems. Through interviews with leading researchers, Grossman gives us a first look at this radical transformation.
 
Green chemistry is just getting underway, but it offers hope that we can indeed create products that benefit health, the environment, and industry.
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front cover of Chicle
Chicle
The Chewing Gum of the Americas, From the Ancient Maya to William Wrigley
Jennifer P. Mathews
University of Arizona Press, 2009
Although Juicy Fruit® gum was introduced to North Americans in 1893, Native Americans in Mesoamerica were chewing gum thousands of years earlier. And although in the last decade “biographies” have been devoted to salt, spices, chocolate, coffee, and other staples of modern life, until now there has never been a full history of chewing gum.

Chicle is a history in four acts, all of them focused on the sticky white substance that seeps from the sapodilla tree when its bark is cut. First, Jennifer Mathews recounts the story of chicle and its earliest-known adherents, the Maya and Aztecs. Second, with the assistance of botanist Gillian Schultz, Mathews examines the sapodilla tree itself, an extraordinarily hardy plant that is native only to Mesoamerica and the Caribbean. Third, Mathews presents the fascinating story of the chicle and chewing gum industry over the last hundred plus years, a tale (like so many twentieth-century tales) of greed, growth, and collapse. In closing, Mathews considers the plight of the chicleros, the “extractors” who often work by themselves tapping trees deep in the forests, and how they have emerged as icons of local pop culture—portrayed as fearless, hard-drinking brawlers, people to be respected as well as feared.

Before Dentyne® and Chiclets®, before bubble gum comic strips and the Doublemint® twins, there was gum, oozing from jungle trees like melting candle wax under the slash of a machete. Chicle tells us everything that happened next. It is a spellbinding story.
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front cover of Driving Force
Driving Force
The Natural Magic of Magnets
James D. Livingston
Harvard University Press, 1996

Driving Force unfolds the long and colorful history of magnets: how they guided (or misguided) Columbus; mesmerized eighteenth-century Paris but failed to fool Benjamin Franklin; lifted AC power over its rival, DC, despite all the animals, one human among them, executed along the way; led Einstein to the theory of relativity; helped defeat Hitler's U-boats; inspired writers from Plato to Dave Barry. In a way that will delight and instruct even the nonmathematical among us, James Livingston shows us how scientists today are creating magnets and superconductors that can levitate high-speed trains, produce images of our internal organs, steer high-energy particles in giant accelerators, and--last but not least--heat our morning coffee.

From the "new" science of materials to everyday technology, Driving Force makes the workings of magnets a matter of practical wonder. The book will inform and entertain technical and nontechnical readers alike and will give them a clearer sense of the force behind so much of the working world.

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front cover of Life Atomic
Life Atomic
A History of Radioisotopes in Science and Medicine
Angela N. H. Creager
University of Chicago Press, 2013
After World War II, the US Atomic Energy Commission (AEC) began mass-producing radioisotopes, sending out nearly 64,000 shipments of radioactive materials to scientists and physicians by 1955. Even as the atomic bomb became the focus of Cold War anxiety, radioisotopes represented the government’s efforts to harness the power of the atom for peace—advancing medicine, domestic energy, and foreign relations.
           
In Life Atomic, Angela N. H. Creager tells the story of how these radioisotopes, which were simultaneously scientific tools and political icons, transformed biomedicine and ecology. Government-produced radioisotopes provided physicians with new tools for diagnosis and therapy, specifically cancer therapy, and enabled biologists to trace molecular transformations. Yet the government’s attempt to present radioisotopes as marvelous dividends of the atomic age was undercut in the 1950s by the fallout debates, as scientists and citizens recognized the hazards of low-level radiation. Creager reveals that growing consciousness of the danger of radioactivity did not reduce the demand for radioisotopes at hospitals and laboratories, but it did change their popular representation from a therapeutic agent to an environmental poison. She then demonstrates how, by the late twentieth century, public fear of radioactivity overshadowed any appreciation of the positive consequences of the AEC’s provision of radioisotopes for research and medicine.
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front cover of Open Resonator Microwave Sensor Systems for Industrial Gauging
Open Resonator Microwave Sensor Systems for Industrial Gauging
A practical design approach
Nathan Ida
The Institution of Engineering and Technology, 2018
Open resonator microwave sensors allow accurate sensing, monitoring and measurement of properties such as dimension and moisture content in materials including dielectrics, rubber, polymers, paper, fabrics and wood veneers. This book presents a coherent and entirely practical approach to the design and use of systems based on these sensors in industrial environments, showing how they can provide meaningful, accurate and industrially-viable methods of gauging.
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