Download or read book Defending Planet Earth written by National Research Council and published by National Academies Press. This book was released on 2010-07-21 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States spends approximately $4 million each year searching for near-Earth objects (NEOs). The objective is to detect those that may collide with Earth. The majority of this funding supports the operation of several observatories that scan the sky searching for NEOs. This, however, is insufficient in detecting the majority of NEOs that may present a tangible threat to humanity. A significantly smaller amount of funding supports ways to protect the Earth from such a potential collision or "mitigation." In 2005, a Congressional mandate called for NASA to detect 90 percent of NEOs with diameters of 140 meters of greater by 2020. Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies identifies the need for detection of objects as small as 30 to 50 meters as these can be highly destructive. The book explores four main types of mitigation including civil defense, "slow push" or "pull" methods, kinetic impactors and nuclear explosions. It also asserts that responding effectively to hazards posed by NEOs requires national and international cooperation. Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies is a useful guide for scientists, astronomers, policy makers and engineers.
Download or read book The Asteroid Threat written by William E. Burrows and published by . This book was released on 2014 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a realistic, workable plan for defusing a potentially lethal threat from a rogue asteroid or comet. The explosion of a large meteor over Chelyabinsk, Siberia, in February 2013 is just the latest reminder that planet Earth is vulnerable to damaging and potentially catastrophic collisions with space debris of various kinds. In this informative and forward-looking book, veteran aerospace writer William E. Burrows explains what we can do in the future to avoid far more serious impacts from "Near-Earth Objects" (NEOs), as they are called in the planetary defense community. The good news is that humanity is now equipped with the advanced technology necessary to devise a long-term strategy to protect the planet. Burrows outlines the following key features of an effective planetary defense strategy- * A powerful space surveillance system capable of spotting a serious threat from space at least a year in advance * A space craft "nudge" that would throw a collision-course asteroid off target long before it poses the threat of imminent impact * A weapons system to be used as a last-ditch method to blast an NEO should all else fail. The author notes the many benefits for world stability and increasing international cooperation resulting from a united worldwide effort to protect the planet. Combining realism with an optimistic can-do attitude, Burrows shows that humanity is capable of overcoming a potentially calamitous situation.
Download or read book Defending Planet Earth written by National Research Council and published by National Academies Press. This book was released on 2010-06-21 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States spends approximately $4 million each year searching for near-Earth objects (NEOs). The objective is to detect those that may collide with Earth. The majority of this funding supports the operation of several observatories that scan the sky searching for NEOs. This, however, is insufficient in detecting the majority of NEOs that may present a tangible threat to humanity. A significantly smaller amount of funding supports ways to protect the Earth from such a potential collision or "mitigation." In 2005, a Congressional mandate called for NASA to detect 90 percent of NEOs with diameters of 140 meters of greater by 2020. Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies identifies the need for detection of objects as small as 30 to 50 meters as these can be highly destructive. The book explores four main types of mitigation including civil defense, "slow push" or "pull" methods, kinetic impactors and nuclear explosions. It also asserts that responding effectively to hazards posed by NEOs requires national and international cooperation. Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies is a useful guide for scientists, astronomers, policy makers and engineers.
Download or read book One Earth written by Anuradha Rao and published by Orca Book Publishers. This book was released on 2020-04-07 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: ★ “The activists’ stories are extraordinary...It’s a powerful answer to Rao’s framing questions: ‘Who is an environmental defender? What does she or he look like? Maybe like you. Maybe like me.’”—Publishers Weekly, starred review ★ “Thought-provoking reading for young people figuring out their own contributions. This valuable compilation shows that Earth’s salvation lies in the diversity of its people.”—Kirkus Reviews, starred review One Earth profiles Black, Indigenous and People of Color who live and work as environmental defenders. Through their individual stories, the book shows that the intersection of environment and ethnicity is an asset to achieving environmental goals. The twenty short biographies introduce readers to diverse activists from all around the world, who are of many ages and ethnicities. From saving ancient trees on the West Coast of Canada, to protecting the Irrawaddy dolphins of India, to uncovering racial inequalities in the food system in the United States, these environmental heroes are celebrated by author and biologist Anuradha Rao, who outlines how they went from being kids who cared about the environment to community leaders in their field. One Earth is full of environmental role models waiting to be found.
Download or read book How to Build a Robot Army written by Daniel H. Wilson and published by Bloomsbury Publishing USA. This book was released on 2018-03-27 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: It goes without saying that robots kill. They hunt, swarm, and fire lasers from their eyes. They even beat humans at chess. So who better to stand with us when the real villains arrive? Movies instruct us that, whether we like it or not, we will one day be under siege by pirates, ninjas, zombies, aliens, and Godzilla. Also great white sharks. And-let's face it-we're not prepared. But with the advice contained in this brilliantly illustrated, ingenious book, you can build your own robot army to fend off hordes of bloodthirsty foes. From common-sense injunctions ("never approach an unfamiliar robot in a militarized zone") to tactical pointers ("low-power radar beats cameras for detecting mummies in a fog-shrouded crypt") to engineering advice ("passive-dynamic exoskeleton suits will increase sprint speeds but not leg strength"), this book contains all the wisdom you'll need to fend off the coming apocalypse. Witty, informative, and utterly original, How to Build a Robot Army is the ideal book for readers of any age.
Download or read book Planetary Defense written by Nikola Schmidt and published by Springer. This book was released on 2018-12-26 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Planetary defense from near-Earth objects such as asteroids is a far more nuanced and challenging topic than it might seem. Each day, technology is making it easier to detect asteroid impact threats in advance, but at present, there is still no easy way to design and implement any form of global defense. This book examines how various asteroid deflection methods can change global political affairs. The authors believe that the final policy for potential Earth impacts should be based on practical engineering solutions and innovative architectural structures, while at the same time reflecting the most recent political science contributions in ethical security studies and security cosmopolitanism. Their focus is not limited to effective engineering solutions, but rather extends to how such proposals resonate in possible political structures of the future. Planetary defense cannot be achieved with technology alone; the chapters in this volume highlight the issues that arise when space science and technology intersect with political science. This complex interdisciplinary project not only demands global participation and collaboration, but also proposes the way we can achieve it. The authors explore various concepts of governance and their far-reaching implications for planetary defense and vice versa—how scientific progress in Solar System observations and asteroid collision engineering influence political science and put pressure on the international legal framework. The text is intentionally written for a diverse scholarly and diplomatic audience in a style accessible to non-specialists and practitioners and can be read by those across diverse disciplinary backgrounds.
Download or read book Near Earth Object Surveys and Hazard Mitigation Strategies written by National Research Council and published by National Academies Press. This book was released on 2010-01-30 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States is currently the only country with an active, government-sponsored effort to detect and track potentially hazardous near-Earth objects (NEOs). Congress has mandated that NASA detect and track 90 percent of NEOs that are 1 kilometer in diameter or larger. These objects represent a great potential hazard to life on Earth and could cause global destruction. NASA is close to accomplishing this goal. Congress has more recently mandated that by 2020 NASA should detect and track 90 percent of NEOs that are 140 meters in diameter or larger, a category of objects that is generally recognized to represent a very significant threat to life on Earth if they strike in or near urban areas. Achieving this goal may require the building of one or more additional observatories, possibly including a space-based observatory. Congress directed NASA to ask the National Research Council to review NASA's near-Earth object programs. This interim report addresses some of the issues associated with the survey and detection of NEOs. The final report will contain findings and recommendations for survey and detection, characterization, and mitigation of near-Earth objects based on an integrated assessment of the problem.
Download or read book Defending the Earth written by David F. Chapman and published by Cubicle 7 Entertainment. This book was released on 2010-08-10 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defending the Earth is an expansion set for the Doctor Who: Adventures in Time and Space roleplaying game. Within this box you will find: 160 page rulebook detailing the history of UNIT, along with additional information for creating UNIT characters, including new Traits and Areas of Expertise, as well as expanded firearms and combat rules, including mass combat and skirmish rules. 32 page Adventure book, featuring a whole new ready-to-play adventure and many ideas for additional stories. Character sheets for major UNIT personnel, including the legendary Brigadier Lethbridge-Stewart.
Download or read book Planet Ocean written by Sara Holden and published by New Internationalist. This book was released on 2007 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Co-published by Greenpeace. Through stunning photographs, taken on a 16-month Defending Our Oceans expedition, Greenpeace reveals wonderful sights that few people have seen, and also some that certain people would like us not to see. Despite the vastness of the oceans we now know that they are in crisis, struggling to absorb the impact of our destructive ways. This is the story of our oceans - their extraordinary beauty and diversity of life - and the equally astounding ways in which they are exploited. Photographs by Daniel Beltra.
Download or read book Greetings from Planet Earth written by Barbara Kerley and published by Scholastic Inc.. This book was released on 2010-09 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1977, as twelve-year-old Theo struggles with a science class project on space exploration, questions emerge about why his father never returned from Vietnam and why Theo's mother has been keeping secrets for many years.
Download or read book Meteor Showers and their Parent Comets written by Peter Jenniskens and published by Cambridge University Press. This book was released on 2006-09-14 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meteor Showers and their Parent Comets is a unique handbook for astronomers interested in observing meteor storms and outbursts. Spectacular displays of 'shooting stars' are created when the Earth's orbit crosses a meteoroid stream, as each meteoroid causes a bright light when it enters our atmosphere at high speed. Jenniskens, an active meteor storm chaser, explains how meteoroid streams originate from the decay of meteoroids, comets and asteroids, and how they cause meteor showers on Earth. He includes the findings of recent space missions to comets and asteroids, the risk of meteor impacts on Earth, and how meteor showers may have seeded the Earth with ingredients that made life possible. All known meteor showers are identified, accompanied by fascinating details on the most important showers and their parent comets. The book predicts when exceptional meteor showers will occur over the next fifty years, making it a valuable resource for both amateur and professional astronomers.
Download or read book Killer Rocks from Outer Space written by Steven N. Koppes and published by Twenty-First Century Books. This book was released on 2004-01-01 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the role that collisions with meteors, comets, and asteroids have played in the history of Earth and other planets in the solar system and examines what is being done to protect Earth from future collisions.
Download or read book Defending Elysium written by Brandon Sanderson and published by Dragonsteel, LLC. This book was released on 2021-11-23 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: As Brandon Sanderson’s #1 bestselling Skyward series celebrates its third volume, Cytonic, travel back in time to the origin of Cytonics in the novella Defending Elysium. Centuries before Spensa looked skyward from the planet Detritus—back on Old Earth before it was lost—Jason Write faced a crucial question: was humanity ready to join galactic society? When faster-than-light communications were discovered by a small telephone company in 2071, alien species such as the Tenasi and Varvax overheard them and came to visit Earth. Because the Phone Company controls all communications with the aliens, their operatives like Jason operate above the law. Now, on the space platform Evensong, one of the Phone Company’s scientists has gone missing before surfacing in a hospital with amnesia, and Jason is sent to investigate. Right as he arrives, the body of a murdered Varvax ambassador is discovered, sure to cause a galactic incident. Coln Abrams of the United Intelligence Bureau seizes the opportunity to investigate Jason as he deals with the crisis. This could be the UIB’s chance to discover the Phone Company’s secrets—how does FTL communication work, and what is Jason hiding? Winner of Spain’s UPC Award for Science Fiction in 2007.
Download or read book Earth Odyssey written by Mark Hertsgaard and published by Crown Publishing Group (NY). This book was released on 1999 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on his extensive investigation of the global environmental crisis, in which he explored five continents, "Earth Odyssey" recounts Hertsgaard's search for the answer to the essential question of our time: Is the future of the human species at risk?
Download or read book Defending Mother Earth written by Jace Weaver and published by . This book was released on 1996 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Defending Mother Earth brings together important Native voices to address urgent issues of environmental devastation as they affect the indigenous peoples throughout the Americas. The essays document a range of ecological disasters, including the devastating effects of mining, water pollution, nuclear power facilities, and toxic waste dumps. In an expression of "environmental racism," such hazards are commonly located on or near Indian lands." "Many of the authors included in Defending Mother Earth are engaged in struggles to resist these dangers. As their essays consistently demonstrate, these struggles are intimately tied to the assertion of Indian sovereignty and the affirmation of Native culture: the Earth is, indeed, Mother to these nations. In his concluding theological reflection, George Tinker argues that the affirmation of Indian spiritual values, especially the attitude toward the Earth, may hold out a key to the survival of the planet and all its peoples."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved
Download or read book Defending the Earth written by Murray Bookchin and published by Black Rose Books Ltd.. This book was released on 1991 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Defending Middle Earth written by Patrick Curry and published by HMH. This book was released on 2004-10-21 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: A scholar explores the ideas within The Lord of the Rings and the world created by J. R. R. Tolkien: “A most valuable and timely book” (Ursula K. Le Guin, Los Angeles Times–bestselling author of Changing Planes). What are millions of readers all over the world getting out of reading the Lord of the Rings trilogy? Defending Middle-earth argues, in part, that the appeal for fans goes far deeper than just quests and magic rings and hobbits. In fact, through this epic, Tolkien found a way to provide something close to spirit in a secular age. This thoughtful book focuses on three main aspects of Tolkien’s fiction: the social and political structure of Middle-earth and how the varying cultures within it find common cause in the face of a shared threat; the nature and ecology of Middle-earth and how what we think of as the natural world joins the battle against mindless, mechanized destruction; and the spirituality and ethics of Middle-earth—for which the author provides a particularly insightful and resonant examination. Includes a new afterword
