Download or read book Radioactivity written by Claudio Tuniz and published by OUP Oxford. This book was released on 2012-07-26 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: You cannot hide from radioactivity. Even the book you are holding is slightly radioactive, but there are more serious risks. Radioactivity - the breakdown of unstable atomic nuclei, releasing radiation - is a fundamental process in nature. It is a process that has been harnessed to provide wide and important applications in science, medicine, industry, and energy production. But it remains much misunderstood - and feared, perhaps because nuclear radiation cannot be detected by human senses, and can undoubtedly do great harm if appropriate precautions are not taken. In recent times there have been increasing concerns about nuclear terrorism. The traces of radioactive atoms in rocks have allowed us to understand the nature and history of the Earth, in particular to date events in that history. Radioactive dating has been used for a variety of purposes, from determining the age of the first hominids to the dating of the Turin Shroud. The discovery of radioactivity has improved our survival kit, but also gave us the chance to reach a new level of awareness on the history of our species and its environmental impacts. In this Very Short Introduction, Claudio Tuniz explains the nature of radioactivity and discuss its role in nature. Describing radioactivity in the stars and in the Earth, he also looks at its wide range of applications in biomedicine and in science, as well as the mechanisms of nuclear fission and fusion, and the harnessing of nuclear power. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
Download or read book Trace written by Lauret Savoy and published by Catapult. This book was released on 2015-11-01 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a New Preface by the Author Through personal journeys and historical inquiry, this PEN Literary Award finalist explores how America’s still unfolding history and ideas of “race” have marked its people and the land. Sand and stone are Earth’s fragmented memory. Each of us, too, is a landscape inscribed by memory and loss. One life–defining lesson Lauret Savoy learned as a young girl was this: the American land did not hate. As an educator and Earth historian, she has tracked the continent’s past from the relics of deep time; but the paths of ancestors toward her—paths of free and enslaved Africans, colonists from Europe, and peoples indigenous to this land—lie largely eroded and lost. A provocative and powerful mosaic that ranges across a continent and across time, from twisted terrain within the San Andreas Fault zone to a South Carolina plantation, from national parks to burial grounds, from “Indian Territory” and the U.S.–Mexico Border to the U.S. capital, Trace grapples with a searing national history to reveal the often unvoiced presence of the past. In distinctive and illuminating prose that is attentive to the rhythms of language and landscapes, she weaves together human stories of migration, silence, and displacement, as epic as the continent they survey, with uplifted mountains, braided streams, and eroded canyons. Gifted with this manifold vision, and graced by a scientific and lyrical diligence, she delves through fragmented histories—natural, personal, cultural—to find shadowy outlines of other stories of place in America. "Every landscape is an accumulation," reads one epigraph. "Life must be lived amidst that which was made before." Courageously and masterfully, Lauret Savoy does so in this beautiful book: she lives there, making sense of this land and its troubled past, reconciling what it means to inhabit terrains of memory—and to be one.
Download or read book A Very Short History of Life on Earth written by Henry Gee and published by St. Martin's Press. This book was released on 2021-11-09 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Royal Society's Science Book of the Year "[A]n exuberant romp through evolution, like a modern-day Willy Wonka of genetic space. Gee’s grand tour enthusiastically details the narrative underlying life’s erratic and often whimsical exploration of biological form and function.” —Adrian Woolfson, The Washington Post In the tradition of Richard Dawkins, Bill Bryson, and Simon Winchester—An entertaining and uniquely informed narration of Life's life story. In the beginning, Earth was an inhospitably alien place—in constant chemical flux, covered with churning seas, crafting its landscape through incessant volcanic eruptions. Amid all this tumult and disaster, life began. The earliest living things were no more than membranes stretched across microscopic gaps in rocks, where boiling hot jets of mineral-rich water gushed out from cracks in the ocean floor. Although these membranes were leaky, the environment within them became different from the raging maelstrom beyond. These havens of order slowly refined the generation of energy, using it to form membrane-bound bubbles that were mostly-faithful copies of their parents—a foamy lather of soap-bubble cells standing as tiny clenched fists, defiant against the lifeless world. Life on this planet has continued in much the same way for millennia, adapting to literally every conceivable setback that living organisms could encounter and thriving, from these humblest beginnings to the thrilling and unlikely story of ourselves. In A (Very) Short History of Life on Earth, Henry Gee zips through the last 4.6 billion years with infectious enthusiasm and intellectual rigor. Drawing on the very latest scientific understanding and writing in a clear, accessible style, he tells an enlightening tale of survival and persistence that illuminates the delicate balance within which life has always existed.
Download or read book The Story of the Earth in 25 Rocks written by Donald R. Prothero and published by Columbia University Press. This book was released on 2018-01-02 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every rock is a tangible trace of the earth’s past. The Story of the Earth in 25 Rocks tells the fascinating stories behind the discoveries that shook the foundations of geology. In twenty-five chapters—each about a particular rock, outcrop, or geologic phenomenon—Donald R. Prothero recounts the scientific detective work that shaped our understanding of geology, from the unearthing of exemplary specimens to tectonic shifts in how we view the inner workings of our planet. Prothero follows in the footsteps of the scientists who asked—and answered—geology’s biggest questions: How do we know how old the earth is? What happened to the supercontinent Pangea? How did ocean rocks end up at the top of Mount Everest? What can we learn about our planet from meteorites and moon rocks? He answers these questions through expertly chosen case studies, such as Pliny the Younger’s firsthand account of the eruption of Vesuvius; the granite outcrops that led a Scottish scientist to theorize that the landscapes he witnessed were far older than Noah’s Flood; the salt and gypsum deposits under the Mediterranean Sea that indicate that it was once a desert; and how trying to date the age of meteorites revealed the dangers of lead poisoning. Each of these breakthroughs filled in a piece of the greater puzzle that is the earth, with scientific discoveries dovetailing with each other to offer an increasingly coherent image of the geologic past. Summarizing a wealth of information in an entertaining, approachable style, The Story of the Earth in 25 Rocks is essential reading for the armchair geologist, the rock hound, and all who are curious about the earth beneath their feet.
Download or read book Four Lost Cities A Secret History of the Urban Age written by Annalee Newitz and published by W. W. Norton & Company. This book was released on 2021-02-02 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Named a Best Book of the Year by NPR and Science Friday A quest to explore some of the most spectacular ancient cities in human history—and figure out why people abandoned them. In Four Lost Cities, acclaimed science journalist Annalee Newitz takes readers on an entertaining and mind-bending adventure into the deep history of urban life. Investigating across the centuries and around the world, Newitz explores the rise and fall of four ancient cities, each the center of a sophisticated civilization: the Neolithic site of Çatalhöyük in Central Turkey, the Roman vacation town of Pompeii on Italy’s southern coast, the medieval megacity of Angkor in Cambodia, and the indigenous metropolis Cahokia, which stood beside the Mississippi River where East St. Louis is today. Newitz travels to all four sites and investigates the cutting-edge research in archaeology, revealing the mix of environmental changes and political turmoil that doomed these ancient settlements. Tracing the early development of urban planning, Newitz also introduces us to the often anonymous workers—slaves, women, immigrants, and manual laborers—who built these cities and created monuments that lasted millennia. Four Lost Cities is a journey into the forgotten past, but, foreseeing a future in which the majority of people on Earth will be living in cities, it may also reveal something of our own fate.
Download or read book The Emergence of Life on Earth written by Iris Fry and published by Rutgers University Press. This book was released on 2000 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: How did life emerge on Earth? Is there life on other worlds? These questions, until recently confined to the pages of speculative essays and tabloid headlines, are now the subject of legitimate scientific research. This book presents a unique perspective--a combined historical, scientific, and philosophical analysis, which does justice to the complex nature of the subject. The book's first part offers an overview of the main ideas on the origin of life as they developed from antiquity until the twentieth century. The second, more detailed part of the book examines contemporary theories and major debates within the origin-of-life scientific community. Topics include: Aristotle and the Greek atomists' conceptions of the organism Alexander Oparin and J.B.S. Haldane's 1920s breakthrough papers Possible life on Mars?
Download or read book The Contamination of the Earth written by Francois Jarrige and published by MIT Press. This book was released on 2021-11-16 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The trajectories of pollution in global capitalism, from the toxic waste of early tanneries to the poisonous effects of pesticides in the twentieth century. Through the centuries, the march of economic progress has been accompanied by the spread of industrial pollution. As our capacities for production and our aptitude for consumption have increased, so have their byproducts--chemical contamination from fertilizers and pesticides, diesel emissions, oil spills, a vast "plastic continent" found floating in the ocean. The Contamination of the Earth offers a social and political history of industrial pollution, mapping its trajectories over three centuries, from the toxic wastes of early tanneries to the fossil fuel energy regime of the twentieth century.
Download or read book The Surface history of the Earth written by John Joly and published by . This book was released on 1925 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trace Fossils written by William Miller III and published by Elsevier. This book was released on 2011-10-13 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as an up-to-date introduction, as well as overview to modern trace fossil research and covers nearly all of the essential aspects of modern ichnology. Divided into three section, Trace Fossils covers the historical background and concepts of ichnology, on-going research problems, and indications about the possible future growth of the discipline and potential connections to other fields. This work is intended for a broad audience of geological and biological scientists. Workers new to the field could get a sense of the main concepts of ichnology and a clear idea of how trace fossil research is conducted. Scientists in related disciplines could find potential uses for trace fossils in their fields. And, established workers could use the book to check on the progress of their particular brand of ichnology. By design, there is something here for novice and veteran, insider and outsider, and for the biologically-oriented workers and for the sedimentary geologists.* Presents a review of the state of ichnology at the beginning of the 21st Century* Summarizes the basic concepts and methods of modern trace fossil research* Discusses crucial background information about the history of trace fossil research, the main concepts of ichnology, examples of current problems and future directions, and the potential connections to other disciplines within both biology and geology
Download or read book Black Earth written by Timothy Snyder and published by Tim Duggan Books. This book was released on 2015-09-08 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brilliant, haunting, and profoundly original portrait of the defining tragedy of our time. In this epic history of extermination and survival, Timothy Snyder presents a new explanation of the great atrocity of the twentieth century, and reveals the risks that we face in the twenty-first. Based on new sources from eastern Europe and forgotten testimonies from Jewish survivors, Black Earth recounts the mass murder of the Jews as an event that is still close to us, more comprehensible than we would like to think, and thus all the more terrifying. The Holocaust began in a dark but accessible place, in Hitler's mind, with the thought that the elimination of Jews would restore balance to the planet and allow Germans to win the resources they desperately needed. Such a worldview could be realized only if Germany destroyed other states, so Hitler's aim was a colonial war in Europe itself. In the zones of statelessness, almost all Jews died. A few people, the righteous few, aided them, without support from institutions. Much of the new research in this book is devoted to understanding these extraordinary individuals. The almost insurmountable difficulties they faced only confirm the dangers of state destruction and ecological panic. These men and women should be emulated, but in similar circumstances few of us would do so. By overlooking the lessons of the Holocaust, Snyder concludes, we have misunderstood modernity and endangered the future. The early twenty-first century is coming to resemble the early twentieth, as growing preoccupations with food and water accompany ideological challenges to global order. Our world is closer to Hitler's than we like to admit, and saving it requires us to see the Holocaust as it was --and ourselves as we are. Groundbreaking, authoritative, and utterly absorbing, Black Earth reveals a Holocaust that is not only history but warning.
Download or read book The Story of Earth written by Robert M. Hazen and published by Penguin. This book was released on 2013-07-30 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hailed by The New York Times for writing “with wonderful clarity about science . . . that effortlessly teaches as it zips along,” nationally bestselling author Robert M. Hazen offers a radical new approach to Earth history in this intertwined tale of the planet’s living and nonliving spheres. With an astrobiologist’s imagination, a historian’s perspective, and a naturalist’s eye, Hazen calls upon twenty-first-century discoveries that have revolutionized geology and enabled scientists to envision Earth’s many iterations in vivid detail—from the mile-high lava tides of its infancy to the early organisms responsible for more than two-thirds of the mineral varieties beneath our feet. Lucid, controversial, and on the cutting edge of its field, The Story of Earth is popular science of the highest order. "A sweeping rip-roaring yarn of immense scope, from the birth of the elements in the stars to meditations on the future habitability of our world." -Science "A fascinating story." -Bill McKibben
Download or read book The Grand Canyon written by Wayne Ranney and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: -Could the Grand Canyon's rock layers have formed in a single year of Noah's flood?-Why are there no dinosaur, bird or mammal fossils in the canyon's layers?-How do we know that radiometric dating methods are reliable?-How can we tell what happened in the unobserved past?-How long did it take to carve out the canyon?-Is Young Earth Creationism really biblical?Learn the answers to these questions and more to understand how the Grand Canyon testifies to an old earth. Insights from top geologists, highlighted by stunning photographs, provide a memorable guide to these ancient wonders of creation.
Download or read book A Brief History of Geology written by Kieran D. O'Hara and published by Cambridge University Press. This book was released on 2018-04-19 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 200 years of the history of the development of the study of geology.
Download or read book Earth s Oldest Rocks written by Martin J. Van Kranendonk and published by Elsevier. This book was released on 2007-10-26 with total page 1331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earth's Oldest Rocks provides a comprehensive overview of all aspects of early Earth, from planetary accretion through to development of protocratons with depleted lithospheric keels by c. 3.2 Ga, in a series of papers written by over 50 of the world's leading experts. The book is divided into two chapters on early Earth history, ten chapters on the geology of specific cratons, and two chapters on early Earth analogues and the tectonic framework of early Earth. Individual contributions address topics that range from planetary accretion, a review of Earth meteorites, significance and composition of Hadean protocrust, composition of Archaean mantle and deep crust, all aspects of the geology of Paleoarchean cratons, composition of Archean oceans and hydrothermal environments, evidence and geological settings of early life, early Earth analogues from Venus and New Zealand, and a tectonic framework for early Earth.* Contains comprehensive reviews of areas of ancient lithosphere on Earth, of planetary accretion processes, and of meteorites* Focuses on specific aspects of early Earth, including oldest putative life forms, evidence of the composition of the ancient atmosphere-hydrosphere, and the oldest evidence for subduction-accretion* Presents an overview of geological processes and model of the tectonic framework on early Earth
Download or read book Dirt written by David R. Montgomery and published by Univ of California Press. This book was released on 2007-05-14 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dirt, soil, call it what you want—it's everywhere we go. It is the root of our existence, supporting our feet, our farms, our cities. This fascinating yet disquieting book finds, however, that we are running out of dirt, and it's no laughing matter. An engaging natural and cultural history of soil that sweeps from ancient civilizations to modern times, Dirt: The Erosion of Civilizations explores the compelling idea that we are—and have long been—using up Earth's soil. Once bare of protective vegetation and exposed to wind and rain, cultivated soils erode bit by bit, slowly enough to be ignored in a single lifetime but fast enough over centuries to limit the lifespan of civilizations. A rich mix of history, archaeology and geology, Dirt traces the role of soil use and abuse in the history of Mesopotamia, Ancient Greece, the Roman Empire, China, European colonialism, Central America, and the American push westward. We see how soil has shaped us and we have shaped soil—as society after society has risen, prospered, and plowed through a natural endowment of fertile dirt. David R. Montgomery sees in the recent rise of organic and no-till farming the hope for a new agricultural revolution that might help us avoid the fate of previous civilizations.
Download or read book Deforesting the Earth written by Michael Williams and published by University of Chicago Press. This book was released on 2010-05-15 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Anyone who doubts the power of history to inform the present should read this closely argued and sweeping survey. This is rich, timely, and sobering historical fare written in a measured, non-sensationalist style by a master of his craft. One only hopes (almost certainly vainly) that today’s policymakers take its lessons to heart.”—Brian Fagan, Los Angeles Times Published in 2002, Deforesting the Earth was a landmark study of the history and geography of deforestation. Now available as an abridgment, this edition retains the breadth of the original while rendering its arguments accessible to a general readership. Deforestation—the thinning, changing, and wholesale clearing of forests for fuel, shelter, and agriculture—is among the most important ways humans have transformed the environment. Surveying ten thousand years to trace human-induced deforestation’s effect on economies, societies, and landscapes around the world, Deforesting the Earth is the preeminent history of this process and its consequences. Beginning with the return of the forests after the ice age to Europe, North America, and the tropics, Michael Williams traces the impact of human-set fires for gathering and hunting, land clearing for agriculture, and other activities from the Paleolithic age through the classical world and the medieval period. He then focuses on forest clearing both within Europe and by European imperialists and industrialists abroad, from the 1500s to the early 1900s, in such places as the New World, India, and Latin America, and considers indigenous clearing in India, China, and Japan. Finally, he covers the current alarming escalation of deforestation, with our ever-increasing human population placing a potentially unsupportable burden on the world’s forests.
Download or read book Down to Earth written by Ted Steinberg and published by Oxford University Press. This book was released on 2002-05-09 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this ambitious and provocative text, environmental historian Ted Steinberg offers a sweeping history of our nation--a history that, for the first time, places the environment at the very center of our story. Written with exceptional clarity, Down to Earth re-envisions the story of America "from the ground up." It reveals how focusing on plants, animals, climate, and other ecological factors can radically change the way that we think about the past. Examining such familiar topics as colonization, the industrial revolution, slavery, the Civil War, and the emergence of modern-day consumer culture, Steinberg recounts how the natural world influenced the course of human history. From the colonists' attempts to impose order on the land to modern efforts to sell the wilderness as a consumer good, the author reminds readers that many critical episodes in our history were, in fact, environmental events. He highlights the ways in which we have attempted to reshape and control nature, from Thomas Jefferson's surveying plan, which divided the national landscape into a grid, to the transformation of animals, crops, and even water into commodities. The text is ideal for courses in environmental history, environmental studies, urban studies, economic history, and American history. Passionately argued and thought-provoking, Down to Earth retells our nation's history with nature in the foreground--a perspective that will challenge our view of everything from Jamestown to Disney World.
