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Assessing Schools for Generation R: A Guide for Legislation and School Policy in Science Education (Contemporary Trends and Issues in Science Education #41)
by Michael P. Mueller Deborah J. Tippins Arthur J. StewartToday's youth will face global environmental changes, as well as complex personal and social challenges. To address these issues this collection of essays provides vital insights on how science education can be designed to better engage students and help them solve important problems in the world around them. Assessing Schools for Generation R (Responsibility) includes theories, research, and practices for envisioning how science and environmental education can promote personal, social, and civic responsibility. It brings together inspiring stories, creative practices, and theoretical work to make the case that science education can be reformed so that students learn to meaningfully apply the concepts they learn in science classes across America and grow into civically engaged citizens. The book calls for a curriculum that equips students with the knowledge, skills, attitudes and values to confront the complex and often ill-defined socioscientific issues of daily life. The authors are all experienced educators and top experts in the fields of science and environmental education, ecology, experiential education, educational philosophy, policy and history. They examine what has to happen in the domains of teacher preparation and public education to effect a transition of the youth of America. This exciting, informative, sophisticated and sometimes provocative book will stimulate much debate about the future direction of science education in America, and the rest of the world. It is ideal reading for all school superintendents, deans, faculty, and policymakers looking for a way to implement a curriculum that helps builds students into responsible and engaged citizens.
Assessing the Antarctic Environment from a Climate Change Perspective: An Integrated Approach (Earth and Environmental Sciences Library)
by Neloy KhareThe present book covers diversified contributions addressing the impact of climate change on the Antarctic environment. It covers the reconstruction of environmental changes using different proxies. The chapters focus on the glacial history, glacial geomorphology, sedimentology, and geochemistry of Antarctic region. Furthermore, the Cenozoic evolution of the Antarctic ice sheet is discussed along with a Scientometrics analysis of climate change research. The book serves as a useful reference for researchers who are fascinated by the polar region and environmental research.
Assessing the Requirements for Sustained Ocean Color Research and Operations
by Committee on the Assessment of Ongoing Efforts in the Treatment of Posttraumatic Stress DisorderThe ocean is a fundamental component of the earth's biosphere. It covers roughly 70 percent of Earth's surface and plays a pivotal role in the cycling of life's building blocks, such as nitrogen, carbon, oxygen, and sulfur. The ocean also contributes to regulating the climate system. Most of the primary producers in the ocean comprise of microscopic plants and some bacteria; and these photosynthetic organisms (phytoplankton) form the base of the ocean's food web. Monitoring the health of the ocean and its productivity is critical to understanding and managing the ocean's essential functions and living resources. Because the ocean is so vast and difficult for humans to explore, satellite remote sensing of ocean color is currently the only way to observe and monitor the biological state of the surface ocean globally on time scales of days to decades. Ocean color measurements reveal a wealth of ecologically important characteristics including: chlorophyll concentration, the rate of phytoplankton photosynthesis, sediment transport, dispersion of pollutants, and responses of oceanic biota to long-term climate changes. Continuity of satellite ocean color data and associated climate research products are presently at significant risk for the U.S. ocean color community. Assessing Requirements for Sustained Ocean Color Research and Operations aims to identify the ocean color data needs for a broad range of end users, develop a consensus for the minimum requirements, and outline options to meet these needs on a sustained basis. The report assesses lessons learned in global ocean color remote sensing from the SeaWiFS/MODIS era to guide planning for acquisition of future global ocean color radiance data to support U.S. research and operational needs.
Assessing the Societal Implications of Emerging Technologies: Anticipatory governance in practice (The Earthscan Science in Society Series)
by Evan S. MichelsonA growing problem of interest in the field of science and technology policy is that the next generation of innovations is arriving at an accelerating rate, and the governance system is struggling to catch up. Current approaches and institutions for effective technology assessment are ill suited and poorly designed to proactively address the multidimensional, interconnected societal impacts of science and technology advancements that are already taking place and expected to continue over the course of the 21st century. This book offers tangible insights into the strategies deployed by well-known, high-profile organizations involved in anticipating the various societal and policy implications of nanotechnology and synthetic biology. It focuses predominantly on an examination of the practices adopted by the often-cited and uniquely positioned Project on Emerging Nanotechnologies in the United States, as well as being informed by comparisons with a range of institutions also interested in embedding forward-looking perspectives in their respective area of innovation. The book lays out one of the first actionable roadmaps that other interested stakeholders can follow when working toward institutionalizing anticipatory governance practices throughout the policymaking process.
Assessment of Approaches to Updating the Social Cost of Carbon: Phase 1 Report on a Near-Term Update
by National Academies of Sciences Engineering MedicineThe social cost of carbon (SCC) for a given year is an estimate, in dollars, of the present discounted value of the damage caused by a 1-metric ton increase in CO2 emissions into the atmosphere in that year; or equivalently, the benefits of reducing CO2 emissions by the same amount in that given year. The SCC is intended to provide a comprehensive measure of the monetized value of the net damages from global climate change from an additional unit of CO2, including, but not limited to, changes in net agricultural productivity, energy use, human health effects, and property damages from increased flood risk. Federal agencies use the SCC to value the CO2 emissions impacts of various policies including emission and fuel economy standards for vehicles, regulations of industrial air pollutants from industrial manufacturing, emission standards for power plants and solid waste incineration, and appliance energy efficiency standards. There are significant challenges to estimating a dollar value that reflects all the physical, human, ecological, and economic impacts of climate change. Recognizing that the models and scientific data underlying the SCC estimates evolve and improve over time, the federal government made a commitment to provide regular updates to the estimates. To assist with future revisions of the SCC, the Interagency Working Group on the Social Cost of Carbon (IWG) requested the National Academies of Sciences, Engineering, and Medicine complete a study that assessed the merits and challenges of a limited near-term update to the SCC and of a comprehensive update of the SCC to ensure that the estimates reflect the best available science. This interim report focuses on near-term updates to the SCC estimates.
Assessment Of The Bureau Of Reclamation's Security Program
by National Research Council of the National AcademiesThe water impounded behind a dam can be used to generate power and to provide water for drinking, irrigation, commerce, industry, and recreation. However, if a dam fails, the water that would be unleashed has the energy and power to cause mass destruction downstream, killing and injuring people and destroying property, agriculture, industry, and local and regional economies. The U.S. Bureau of Reclamation (Reclamation) is responsible for managing and operating some of this nation’s largest and most critical dams. The failure of one or more of these dams as the result of a malicious act would come with little warning and a limited time for evacuation. In the years since the 9/11 attacks, Reclamation has invested significant resources to establish and build a security program. Reclamation is now ready to evaluate the results of these efforts and determine how best to move forward to develop a security program that is robust and sustainable. This book assesses Reclamation’s security program and determines its level of preparedness to deter, respond to, and recover from malicious acts to its physical infrastructure and to the people who use and manage it.
Assessment of Climate Change in the Southwest United States: A Report Prepared for the National Climate Assessment (NCA Regional Input Reports)
by Gregg Garfin Mary Black Sarah Leroy Angela Jardine Robert MeridethPrepared for the 2013 National Climate Assessment and a landmark study in terms of its breadth and depth of coverage, this report blends the contributions of 120 experts in climate science, economics, ecology, engineering, geography, hydrology, planning, resources management, and other disciplines to provide the most comprehensive, and understandable, analysis to date about climate and its effects on the people and landscapes of Arizona, California, Colorado, Nevada, New Mexico, and Utah--including the U. S. -Mexico border region and the lands of Native Nations. What is the climate of the Southwest like today? What has it been like in the past, and how is it projected to change over the 21st century? How will that affect water resources, ecosystems, agricultural production, energy supply and delivery, transportation, human health, and a host of other areas? How vulnerable is the region to climate change? What else do we need to know about it, and how can we limit its adverse effects?In addressing these and other questions, the book offers decision makers and stakeholders a substantial basis from which to make informed choices that will affect the well-being of the region's inhabitants in the decades to come.
Assessment of Climate Change over the Indian Region: A Report of the Ministry of Earth Sciences (MoES), Government of India
by R. Krishnan J. Sanjay Chellappan Gnanaseelan Milind Mujumdar Ashwini Kulkarni Supriyo ChakrabortyThis open access book discusses the impact of human-induced global climate change on the regional climate and monsoons of the Indian subcontinent, adjoining Indian Ocean and the Himalayas. It documents the regional climate change projections based on the climate models used in the IPCC Fifth Assessment Report (AR5) and climate change modeling studies using the IITM Earth System Model (ESM) and CORDEX South Asia datasets. The IPCC assessment reports, published every 6–7 years, constitute important reference materials for major policy decisions on climate change, adaptation, and mitigation. While the IPCC assessment reports largely provide a global perspective on climate change, the focus on regional climate change aspects is considerably limited. The effects of climate change over the Indian subcontinent involve complex physical processes on different space and time scales, especially given that the mean climate of this region is generally shaped by the Indian monsoon and the unique high-elevation geographical features such as the Himalayas, the Western Ghats, the Tibetan Plateau and the adjoining Indian Ocean, Arabian Sea, and Bay of Bengal. This book also presents policy relevant information based on robust scientific analysis and assessments of the observed and projected future climate change over the Indian region.
Assessment Of The Performance Of Engineered Waste Containment Barriers
by National Research Council of the National AcademiesPresident Carter’s 1980 declaration of a state of emergency at Love Canal, New York, recognized that residents’ health had been affected by nearby chemical waste sites. The Resource Conservation and Recovery Act, enacted in 1976, ushered in a new era of waste management disposal designed to protect the public from harm. It required that modern waste containment systems use “engineered” barriers designed to isolate hazardous and toxic wastes and prevent them from seeping into the environment. These containment systems are now employed at thousands of waste sites around the United States, and their effectiveness must be continually monitored. Assessment of the Performance of Engineered Waste Containment Barriers assesses the performance of waste containment barriers to date. Existing data suggest that waste containment systems with liners and covers, when constructed and maintained in accordance with current regulations, are performing well thus far. However, they have not been in existence long enough to assess long-term (postclosure) performance, which may extend for hundreds of years. The book makes recommendations on how to improve future assessments and increase confidence in predictions of barrier system performance which will be of interest to policy makers, environmental interest groups, industrial waste producers, and industrial waste management industry.
Assessment of Processing Gelled GB M55 Rockets at Anniston
by Committee on Review of Army Planning for the Disposal of M55 Rockets at the Anniston Chemical Agent Disposal FacilityIn 1985, Congress mandated the destruction of the stockpile of M55 rockets stored at several chemical weapons storage sites in the United States and its possessions because of the risk that the rockets may self-ignite. Risk assessments performed by the Army indicate the risk to the public is dominated by M55 rockets containing the nerve agent sarin (GB). During the disposal of these GB M55 rockets at a site in Tooele, Utah, it was discovered that the agent had gelled in a significant percentage of the rockets. In these cases, the standard destruction method would not work. The Army devised an alternate mechanism for incinerating the gelled rockets, but the State of Utah limited their disposal rate using this process. The Army, however, has since developed plans for increasing the destruction rate of gelled rockets and proposes that this method be used at Anniston Chemical Agent Disposal Facility (ANCDF) in Anniston, Alabama. To assist in this effort, the Army asked the National Research Council (NRC) to evaluate the Army's plan for higher destruction rates. Former Congressman Robert Riley (now Alabama's governor) also requested an NRC assessment. This study was carried out by the NRC ad hoc Committee on Review of Army Planning for the Disposal of M55 Rockets at the Anniston Chemical Agent Disposal Facility.
Assessment of the Continuing Operability of Chemical Agent Disposal Facilities and Equipment
by National Research Council of the National AcademiesThe U.S. Army’s Chemical Materials Agency (CMA) currently oversees contracts for the operation of chemical agent stockpile incineration facilities at four disposal sites. Because the period of time required to dispose of these chemical agents has grown beyond that originally planned, the Army is becoming concerned about the possibility of growing operational problems as the processing equipment ages. To help address these concerns, the CMA requested the NRC to assess whether current policies and practices will be able to adequately anticipate and address facility obsolescence issues. This report presents a review of potential infrastructure and equipment weaknesses given that the facilities are being operated well beyond their original design lifetime; an assessment of the Army’s current and evolving obsolescence management programs; and offers recommendations about how the programs may be improved and strengthened to permit safe and expeditious completion of agent stockpile destruction and facility closure.
Assessment of the Risk of Amazon Dieback
by Sebastian M. Scholz Walter VergaraThe Amazon basin is a key component of the global carbon cycle. Not only is the old-growth rainforests in the basin huge carbon storage with about 120 billion metric tons of carbon in their biomass, but they also process annually twice the rate of global anthropogenic fossil fuel emissions through respiration and photosynthesis. In addition, the basin is the largest global repository of biodiversity and produces about 20 percent of the world's flow of fresh water into the oceans. Despite the large CO2 efflux from recent deforestation, the Amazon rainforest is still considered to be a net carbon sink or reservoir because vegetation growth on average exceeds mortality. However, current climate trends and human-induced deforestation may be transforming forest structure and behavior. Amazon forest dieback would be a massive event, affecting all life-forms that rely on this diverse ecosystem, including humans, and producing ramifications for the entire planet. Clearly, with changes at a global scale at stake, there is a need to better understand the risk, and dynamics of Amazon dieback. Therefore, the purpose of the book is to assist in understanding the risk, process and dynamics of potential Amazon dieback and its implications.
An Assessment of the U.S. Environmental Protection Agency's National Environmental Performance Track Program
by Rena Rudavsky Noreen Clancy Nicholas Burger Christopher Nelson Scott HassellThis report addresses the conceptual basis, design, and implementation of the National Environmental Performance Track program. The voluntary program sought to encourage facilities to improve their environmental performance and provide a more collaborative relationship between facilities and regulators. While the program had mixed success, EPA should continue to seek out new approaches to complement and enhance traditional regulatory approaches.
Assessment of the U.S. Outer Continental Shelf Environmental Studies Program: III. Social and Economic Studies
by Socioeconomics PanelThis is the third of four volumes from the Committee to Review the Outer Continental Shelf (OCS) Environmental Studies Program (ESP). The first two dealt with physical, oceanographic, and ecological aspects of the program.This book presents the findings of the panel's investigation of the social and economic relevance of OCS oil and gas activities and the social and economic aspects of the ESP.It describes the potential effects of OCS activities on the human environment, presents an ideal socioeconomic studies program, and comments on the current program in the Atlantic, Gulf of Mexico, Pacific, and Alaska regions.
Asteroid Hunters (TED Books)
by Carrie NugentFor the first time, scientists could have the knowledge to prevent a natural disaster epic in scale—an asteroid hitting the earth and in this exciting, adventuresome book, Carrie Nugent explains how.What are asteroids, and where do they come from? And, most urgently: Are they going to hit the Earth? What would happen if one was on its way? Carrie Nugent is an asteroid hunter—part of a group of scientists working to map our cosmic neighborhood. For the first time ever, we are reaching the point where we may be able to prevent the horrible natural disaster that would result from an asteroid collision. In Asteroid Hunters, Nugent reveals what known impact asteroids have had: the extinction of the dinosaurs, the earth-sized hole Shoemaker Levy 9 left in Jupiter just a few decades ago, how the meteorite that bursted over Chelyabinsk in Russia could have started a war, and unlucky Ms. Anne Hodges—the only person (that we know of) in US history to be the victim of a direct hit. Nugent also introduces the telescope she uses to detect near-Earth asteroids. Ultimately, detection is the key to preventing asteroid impact, and these specialized scientists are working to prevent the unthinkable from happening. If successful, asteroid hunting will lead to the first natural disaster humans have the know-how and the technology to prevent. The successful hunt and mapping of asteroids could mean nothing less than saving life on earth.
Astoria
by Peter StarkIn 1810, John Jacob Astor sent out two advance parties to settle the wild, unclaimed western coast of North America. More than half of his men died violent deaths. The others survived starvation, madness, and greed to shape the destiny of a continent.At a time when the edge of American settlement barely reached beyond the Appalachian Mountains, two visionaries, President Thomas Jefferson and millionaire John Jacob Astor, foresaw that one day the Pacific would dominate world trade as much as the Atlantic did in their day. Just two years after the Lewis and Clark expedition concluded in 1806, Jefferson and Astor turned their sights westward once again. Thus began one of history's dramatic but largely forgotten turning points in the conquest of the North American continent.Astoria is the harrowing tale of the quest to settle a Jamestown-like colony on the Pacific coast. Astor set out to establish a global trade network based at the mouth of the Columbia River in what is now Oregon, while Jefferson envisioned a separate democracy on the western coast that would spread eastward to meet the young United States.Astor backed this ambitious enterprise with the vast for-tune he'd made in the fur trade and in New York real estate since arriving in the United States as a near-penniless immigrant soon after the Revolutionary War. He dispatched two groups of men west: one by sea around the southern tip of South America and one by land over the Rockies. The Overland Party, led by the gentlemanly American businessman Wilson Price Hunt, combined French-Canadian voyageurs, Scottish fur traders, American woodsmen, and an extraordinary Native American woman with two toddlers. The Seagoing Party, sailing aboard the ship Tonquin, likewise was a volatile microcosm of contemporary North America. Under the bitter eye of Captain Jonathan Thorn, a young U.S. naval hero whose unyielding, belligerent nature was better suited to battle than to negotiating cultural differences, the Tonquin made tumultuous progress toward its violent end.Unfolding from 1810 to 1813, Astoria is a tale of high adventure and incredible hardship, drawing extensively on firsthand accounts of those who made the journey. Though the colony itself would be short-lived, its founders opened provincial American eyes to the remarkable potential of the western coast, discovered the route that became the Oregon Trail, and permanently altered the nation's landscape and global standing.
Astrid and Apollo and the Fishing Flop (Astrid and Apollo)
by V.T. BidaniaIt's the twins' first time fishing. Astrid and Apollo can't wait to ride on their Uncle Lue's fast boat and get goofy pictures with all the fish they catch. But Apollo keeps catching things that are not fish! When a storm brings them to shore, Apollo starts to feel like he's a fishing failure. Can the twins turn the day around and help Apollo find the fun in fishing?
Astrid and Apollo and the Starry Campout (Astrid and Apollo)
by V.T. BidaniaAstrid is afraid of the dark and doesn't want to go on her family camping trip. But her twin brother, Apollo, is excited. When they encounter scary things such as crawly bugs and the creepy dark, Apollo helps his twin through them. And when they encounter the scariest thing of all, Astrid might just be the one to save the starry campout.
Astrid Taim's Almaguin Chronicles 2-Book Bundle: Almaguin / Almaguin Chronicles
by Astrid TaimThe Almaguin Highlands, an extensive territory covering a 90 kilometre corridor from Huntsville, north to Callander, west to Dunchurch, and east to the Algonquin Park border, is a land rich with lakes, rivers, and a lively history. Once considered as a site for a First Nations Reserve in the early 1800s, Almaguin became a centre for lumbering and ultimately a year-round mecca for outdoor enthusiasts. This 2-book bundle is Astrid Taim's definitive guide to the region and its heritage. Almaguin: A Highland History offers a wide range of stories from the opening of the area by colonization roads to the first vessels on the Magnetawan River and the courage of the early pioneers. Included are community histories of the many towns, villages, and ghost towns of today; profiles of colourful personalities; as well as interesting and amusing tales of these rugged early times. Almaguin Chronicles explores the relationship between lumbering and settlement throughout the Parry Sound District — the last frontier of this part of Ontario. Throughout, rare archival photographs and excerpts from unpublished memoirs augment the text.
Astro-Imaging Projects for Amateur Astronomers: A Maker’s Guide (The Patrick Moore Practical Astronomy Series)
by Jim ChungThis is the must-have guide for all amateur astronomers who double as makers, doers, tinkerers, problem-solvers, and inventors. In a world where an amateur astronomy habit can easily run into the many thousands of dollars, it is still possible for practitioners to get high-quality results and equipment on a budget by utilizing DIY techniques. Surprisingly, it's not that hard to modify existing equipment to get new and improved usability from older or outdated technology, creating an end result that can outshine the pricey higher-end tools. All it takes is some elbow grease, a creative and open mind and the help of Chung's hard-won knowledge on building and modifying telescopes and cameras. With this book, it is possible for readers to improve their craft, making their equipment more user friendly. The tools are at hand, and the advice on how to do it is here. Readers will discover a comprehensive presentation of astronomical projects that any amateur on any budget can replicate - projects that utilize leading edge technology and techniques sure to invigorate the experts and elevate the less experienced. As the "maker" community continues to expand, it has wonderful things to offer amateur astronomers with a willingness to get their hands dirty. Tweaking observing and imaging equipment so that it serves a custom purpose can take your observing options to the next level, while being fun to boot.
Astronomy and the Climate Crisis (Astronomers' Universe)
by Antony CookeClimate change is acknowledged as being one of the most important areas of research today. Increasing global temperatures will impact all of us to a greater or lesser extent. From the point of view of research it is an enormously important and complex subject. However, little attention is paid to its relationship to astronomy, the sun in particular but not exclusively. Though directed at an astronomically inclined readership, and providing some less well-known astronomically related information, studies and concepts, this book will also appeal to a broader public, who need to understand the subject of climate change and learn of all the various theories and possible solutions.
Astronomy Hacks: Tips and Tools for Observing the Night Sky
by Robert Bruce Thompson Barbara Fritchman ThompsonWhy use the traditional approach to study the stars when you can turn computers, handheld devices, and telescopes into out-of-this-world stargazing tools? Whether you're a first timer or an advanced hobbyist, you'll find Astronomy Hacks both useful and fun. From upgrading your optical finder to photographing stars, this book is the perfect cosmic companion. This handy field guide covers the basics of observing, and what you need to know about tweaking, tuning, adjusting, and tricking out a 'scope. Expect priceless tips and tools for using a Dobsonian Telescope, the large-aperture telescope you can inexpensively build in your garage. Get advice on protocols involved with using electronics including in dark places without ruining the party. Astronomy Hacks begins the space exploration by getting you set up with the right equipment for observing and admiring the stars in an urban setting. Along for the trip are first rate tips for making most of observations. The hacks show you how to: Dark-Adapt Your Notebook Computer Choose the Best Binocular Clean Your Eyepieces and Lenses Safely Upgrade Your Optical Finder Photograph the Stars with Basic Equipment The O'Reilly Hacks series has reclaimed the term "hacking" to mean innovating, unearthing, and creating shortcuts, gizmos, and gears. With these hacks, you don't dream it-you do it--and Astronomy Hacks brings space dreams to life. The book is essential for anyone who wants to get the most out of an evening under the stars and have memorable celestial adventures.
Asymmetric Environmental Governance in Azerbaijan: Oil Pollution and Greenhouse Gas Emissions (Societies and Political Orders in Transition)
by Agshin UmudovThis book examines why authoritarian governments are willing to address environmental problems that have an international impact, such as CO2 emissions, but are reluctant to address problems that have only a domestic impact. In a case study of Azerbaijani oil politics, it demonstrates how the incumbent Azerbaijani regime has taken important measures trying to address CO2 emissions while ignoring the damage caused by oil pollution on the Caspian coast. The book argues that resource-rich authoritarian governments are eager to join international environmental initiatives to improve their image, but they address domestic environmental issues mainly if they threaten their hold on power.This book is an important contribution to scholarship on environmental governance in the post-Soviet space, an area that is poorly researched. Therefore, it is a must-read for researchers and scholars interested in post-Soviet studies, as well as in the nexus between mineral-rich regions and how social policy is created, e.g., environment, education, and healthcare. In addition, this book will be of tremendous importance for policymakers and international organizations as it looks into the motivation of authoritarian states in the post-Soviet space for environmental measures.
Asymmetry in Plants: Biology of Handedness
by Bir Bahadur K. V. Krishnamurthy Monoranjan Ghose S. John AdamsPlants exhibit forms of asymmetry analogous to "handedness" in bilaterally symmetrical animals. This book explores the evolutionary significance and development of asymmetry. Examples of genetic control include the direction of tendril or stem coiling of many climbing plants; the so-called spiral phyllotaxy and floral taxy; and contorted petal arrangement is another kind of left- right symmetry in plants; the direction of contortion is fixed in some but not in other plants. The book will underscore tha all phenomena related to handedness start during embryogenesis itself, with the occurrence of embryo rotation. Key selling features: First consolidated book on Plant Handedness Relates handedness, asymmetry and chirality to the evolution of different organizational levels in plant biology Emphasizes handedness as a vital governing force in plant functional evolution Provides a new perspective, hitherto ignored, into plant developemtn and evolution Describes how an age-old phenomenon can give scope for investigation from a very modern interdisciplinary approach
At Day's Close: A History of Nighttime
by A. Roger EkirchA fascinating and colourful social history of the nighttime in the pre-Industrial era.AT DAY'S CLOSE charts a fresh realm of Western culture, nocturnal life from the late medieval period to the Industrial revolution. The book focuses on the cadences of daily life, investigating nighttime in its own right and resurrecting a rich and complex universe in which persons passed nearly half of their lives - a world, long-lost to historians, of blanket fairs, night freaks, and curtain lectures, of sun-suckers, moon-cursers and night-kings. It is not only the vocabulary that has disappeared, AT DAY'S CLOSE will restitute many facts which have been either lost or forgotten. It is a significant and newsworthy contribution to social history, filled with substantial research, stories and new discoveries.Ekirch uses a wide range of sources to reconstruct how the night was lived in the past : travel accounts, memoirs, letters, poems, plays, court records, coroner's reports, depositions and laws dealing with curfews, crime and lighting. He has analysed working-class autobiographies, proverbs, nursery rhymes, ballads and sermons, and folklore, as well as consulting medical, psychological and anthropological papers.