Download or read book The Great Acceleration written by J. R. McNeill and published by Harvard University Press. This book was released on 2016-04-04 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth has entered a new age—the Anthropocene—in which humans are the most powerful influence on global ecology. Since the mid-twentieth century, the accelerating pace of energy use, greenhouse gas emissions, and population growth has thrust the planet into a massive uncontrolled experiment. The Great Acceleration explains its causes and consequences, highlighting the role of energy systems, as well as trends in climate change, urbanization, and environmentalism. More than any other factor, human dependence on fossil fuels inaugurated the Anthropocene. Before 1700, people used little in the way of fossil fuels, but over the next two hundred years coal became the most important energy source. When oil entered the picture, coal and oil soon accounted for seventy-five percent of human energy use. This allowed far more economic activity and produced a higher standard of living than people had ever known—but it created far more ecological disruption. We are now living in the Anthropocene. The period from 1945 to the present represents the most anomalous period in the history of humanity’s relationship with the biosphere. Three-quarters of the carbon dioxide humans have contributed to the atmosphere has accumulated since World War II ended, and the number of people on Earth has nearly tripled. So far, humans have dramatically altered the planet’s biogeochemical systems without consciously managing them. If we try to control these systems through geoengineering, we will inaugurate another stage of the Anthropocene. Where it might lead, no one can say for sure.
Download or read book Environmental Restoration Acceleration Report written by Barry Leonard and published by DIANE Publishing. This book was released on 1999-06 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dept. of Energy (DOE) has made great progress in accelerating the pace of cleanup over the past few years, and current estimates show that 80% of the Environmental Management site cleanups will be completed by the year 2021. These changes reflect a more focused technical baseline -- oriented towards results and fueled by performance-based contracts -- and a fundamental change in strategy, which involves: addressing urgent risks first; stabilizing sites; investing in technology development and basic science; reducing mortgage costs; and basing decisions on future land use considerations.
Download or read book Acceleration and Propagation of Cosmic Rays in High Metallicity Astrophysical Environments written by Ana Laura Müller and published by Springer Nature. This book was released on 2022-10-01 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis addresses the feasibility of the production of ultra-high-energy cosmic rays in starburst galaxies and active galactic nuclei. These astrophysical objects were theoretically proposed as candidate sources a long time ago. Nevertheless, the interest in them has been recently renewed due to the observational data collected by the Pierre Auger Observatory and the Telescope Array. In this work, a comprehensive review of the current status of the research on cosmic rays accelerators is provided, along with a summary of the principal concepts needed to connect these relativistic particles with electromagnetic and neutrino observations in the multi-messenger era. On one hand, the hypothesis of accelerating particles with energies above 1018 eV in starburst superwinds is carefully revisited, taking into account the constraints imposed by the most recent electromagnetic observations. On the other hand, an alternative new model for the gamma emission of the nearby active galaxy NGC 1068 is presented. The implications of the results of these studies are discussed in terms of the contemporary observatories and prospects for future experiments are offered.
Download or read book Anthropocene A Very Short Introduction written by Erle C. Ellis and published by Oxford University Press. This book was released on 2018-02-22 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proposal that the impact of humanity on the planet has left a distinct footprint, even on the scale of geological time, has recently gained much ground. Global climate change, shifting global cycles of the weather, widespread pollution, radioactive fallout, plastic accumulation, species invasions, the mass extinction of species - these are just some of the many indicators that we will leave a lasting record in rock, the scientific basis for recognizing new time intervals in Earth's history. The Anthropocene, as the proposed new epoch has been named, is regularly in the news. Even with such robust evidence, the proposal to formally recognize our current time as the Anthropocene remains controversial both inside and outside the scholarly world, kindling intense debates. The reason is clear. The Anthropocene represents far more than just another interval of geologic time. Instead, the Anthropocene has emerged as a powerful new narrative, a concept through which age-old questions about the meaning of nature and even the nature of humanity are being revisited and radically revised. This Very Short Introduction explains the science behind the Anthropocene and the many proposals about when to mark its beginning: the nuclear tests of the 1950s? The beginnings of agriculture? The origins of humans as a species? Erle Ellis considers the many ways that the Anthropocene's "evolving paradigm" is reshaping the sciences, stimulating the humanities, and foregrounding the politics of life on a planet transformed by humans. The Anthropocene remains a work in progress. Is this the story of an unprecedented planetary disaster? Or of newfound wisdom and redemption? Ellis offers an insightful discussion of our role in shaping the planet, and how this will influence our future on many fronts. 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 Summary Report of Mission Acceleration Measurements for STS 78 written by and published by . This book was released on 1997 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acceleration Environment written by Kevin McPherson and published by . This book was released on 2015 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Co Design for System Acceleration written by Nadia Nedjah and published by Springer Science & Business Media. This book was released on 2007-05-17 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is concerned with studying the co-design methodology in general, and how to determine the more suitable interface mechanism in a co-design system in particular. This is based on the characteristics of the application and those of the target architecture of the system. Guidelines are provided to support the designer's choice of the interface mechanism. Some new trends in co-design and system acceleration are also introduced.
Download or read book The Great Acceleration written by J. R. McNeill and published by Harvard University Press. This book was released on 2016-04-04 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth has entered a new age—the Anthropocene—in which humans are the most powerful influence on global ecology. Since the mid-twentieth century, the accelerating pace of energy use, greenhouse gas emissions, and population growth has thrust the planet into a massive uncontrolled experiment. The Great Acceleration explains its causes and consequences, highlighting the role of energy systems, as well as trends in climate change, urbanization, and environmentalism. More than any other factor, human dependence on fossil fuels inaugurated the Anthropocene. Before 1700, people used little in the way of fossil fuels, but over the next two hundred years coal became the most important energy source. When oil entered the picture, coal and oil soon accounted for seventy-five percent of human energy use. This allowed far more economic activity and produced a higher standard of living than people had ever known—but it created far more ecological disruption. We are now living in the Anthropocene. The period from 1945 to the present represents the most anomalous period in the history of humanity’s relationship with the biosphere. Three-quarters of the carbon dioxide humans have contributed to the atmosphere has accumulated since World War II ended, and the number of people on Earth has nearly tripled. So far, humans have dramatically altered the planet’s biogeochemical systems without consciously managing them. If we try to control these systems through geoengineering, we will inaugurate another stage of the Anthropocene. Where it might lead, no one can say for sure.
Download or read book Measurement and Characterization of the Acceleration Environment on Board the Space Station written by Charles R. Baugher and published by . This book was released on 1990 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Summary of the Quasi Steady Acceleration Environment On Board STS 94 MSL 1 written by Kevin M. McPherson and published by . This book was released on 1999 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safety Design for Space Systems written by Gary Eugene Musgrave and published by Butterworth-Heinemann. This book was released on 2009-03-27 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in space safety lies in the acceptance of safety design and engineering as an integral part of the design and implementation process for new space systems. Safety must be seen as the principle design driver of utmost importance from the outset of the design process, which is only achieved through a culture change that moves all stakeholders toward front-end loaded safety concepts. This approach entails a common understanding and mastering of basic principles of safety design for space systems at all levels of the program organisation. Fully supported by the International Association for the Advancement of Space Safety (IAASS), written by the leading figures in the industry, with frontline experience from projects ranging from the Apollo missions, Skylab, the Space Shuttle and the International Space Station, this book provides a comprehensive reference for aerospace engineers in industry. It addresses each of the key elements that impact on space systems safety, including: the space environment (natural and induced); human physiology in space; human rating factors; emergency capabilities; launch propellants and oxidizer systems; life support systems; battery and fuel cell safety; nuclear power generators (NPG) safety; habitat activities; fire protection; safety-critical software development; collision avoidance systems design; operations and on-orbit maintenance. - The only comprehensive space systems safety reference, its must-have status within space agencies and suppliers, technical and aerospace libraries is practically guaranteed - Written by the leading figures in the industry from NASA, ESA, JAXA, (et cetera), with frontline experience from projects ranging from the Apollo missions, Skylab, the Space Shuttle, small and large satellite systems, and the International Space Station - Superb quality information for engineers, programme managers, suppliers and aerospace technologists; fully supported by the IAASS (International Association for the Advancement of Space Safety)
Download or read book International Encyclopedia of Ergonomics and Human Factors 3 Volume Set written by Informa Healthcare and published by CRC Press. This book was released on 2000-12-14 with total page 1980 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first encyclopedia in the field, the International Encyclopedia of Ergonomics and Human Factors provides a comprehensive and authoritative compendium of current knowledge on ergonomics and human factors. It gives specific information on concepts and tools unique to ergonomics. About 500 entries, published in three volumes and on CD-ROM, are pre
Download or read book Engineering Design Handbook Environmental Series written by United States. Army Materiel Command and published by . This book was released on 1969 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Survey of the Ambient Motion Environment in the Southwestern United States written by Henry A. Ossing and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of published ambient motion data peculiar to the American Southwest is presented. Areas considered are within the Basin and Range physiographic province, namely Arizona, Nevada, and New Mexico. Ground intensity level determinations, formatted as displacement and acceleration, are compared with continental and world-wide averages. A characterization of the physical and theoretical nature of microseismic activity is included. (Author).
Download or read book Measurement and Characterization of the Acceleration Environment on Board the Space Station written by Charles R. Baugher and published by . This book was released on 1990 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Works Acceleration Act Amendments of 1971 and Public Works and Economic Development Act Amendments of 1971 written by United States. Congress. House. Committee on Public Works. Special Subcommittee on Economic Development Programs and published by . This book was released on 1971 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1975 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
