light-pollution

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Light Pollution

Author : Bob Mizon
ISBN : 9781447106692
Genre : Science
File Size : 89. 16 MB
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Light-pollution is the modern scourge of optical astronomy. An increasing number of observing sites are in danger of being rendered useless due to the glare of city lighting blotting out the night sky. Professional astronomical observatories are located far from cities, but amateur astronomers often do not have this luxury. This book considers the two available strategies open to Astronomers. The first involves campaigning against light pollution by lobbying Authorities and Standards Organisations, and the second involves using the correct instrumentation. The book contains an extensive detailed catalogue of deep-sky and other objects that - despite what one might believe - can be seen from variously light-polluted sites, for practical observers.

Fighting Light Pollution

Author : The International Dark-Sky Association
ISBN : 9780811745642
Genre : Nature
File Size : 86. 77 MB
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The first practical guide to alleviating an increasingly prevalent environmental concern.

Light Pollution Handbook

Author : Kohei Narisada
ISBN : 9781402026669
Genre : Science
File Size : 21. 49 MB
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Constituting the first holistic overview including practical remedies, this handbook provides the background needed by anyone grappling with the complex issue of outdoor lighting and its effects. It describes not only the problems that astronomers and other night sky observers face in reducing the problems of information loss due to light pollution, as well as the problems lighting technologists face in optimising outdoor lighting installations that cause little or no light pollution. The first part is directed to decision makers and managers of outdoor space and covers the areas of general interest, culminating in recommendations to reduce the impact of light pollution. The second part is directed primarily to scientists and engineers, as a support to the design and maintenance of outdoor lighting installations, with special reference to astronomical observations. Elaborating issues from the first part, these contributions include examples that refer to specific outdoor lighting projects and to more general policy and educational measures. Written for designers of lighting equipment and managers of astronomical observatories, but also aimed at the authorities and decision makers responsible for the organization and maintenance of the public space, it will serve a good purpose in graduate or postgraduate curricula for scientists, engineers, economists and law students. This handbook fills the gap that exists between astronomical textbooks, engineering texts and popular brochures about light pollution.

Light Pollution The Global View

Author : H.E Schwarz
ISBN : 9789401701259
Genre : Science
File Size : 89. 33 MB
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The effects of light pollution on flora, fauna -including humans and their widely varying night-time activities- are often subtle and need extensive field studies to be quantified in a sensible manner. Some of the highlights were: The presentation of the 1st world atlas of artificial night sky brightness (Cinzano et al.); the article by the International Darksky Association on their world-wide efforts to curb light pollution (Alvarez del Castillo et al.); the laws controlling light pollution implemented in Spain (Diaz et al.) and Chile (Sanhueza et al.), an overview of the work on radio frequency protection of sites (Cohen et al.) and the excellent introduction to the topic from the Chilean point of view (Daud). Related topics in the book are light pollution education, aircraft contrails, space advertising (with an added document provided by the relevant UN commission), and an experiment on involving the population of an entire country in measuring sky brightness, by using the internet and the media. The text is aimed at professionals from a wide range of disciplines related to lighting and its effects on the night-time environment in the broadest sense of the word. Lay persons interested in this emerging multi-disciplinary field can also find much of interest in this book.

Urban Lighting Light Pollution And Society

Author : Josiane Meier
ISBN : 9781317602460
Genre : Political Science
File Size : 51. 11 MB
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After decades "in the shadows", urban lighting is re-emerging as a matter of public debate. Long-standing truths are increasingly questioned as a confluence of developments affects lighting itself and the way it is viewed. Light has become an integral element of place-making and energy-saving initiatives alike. Rapidly evolving lighting technologies are opening up new possibilities, but also posing new challenges to planners, and awareness is growing that artificial illumination is not purely benign but can actually constitute a form of pollution. As a result, public policy frameworks, incentives and initiatives are undergoing a phase of innovation and change that will affect how cities are lit for years to come. The first comprehensive compilation of current scientific discussions on urban lighting and light pollution from a social science and humanities perspective, Urban Lighting, Light Pollution and Society contributes to an evolving international debate on an increasingly controversial topic. The contributions draw a rich panorama of the manifold discourses connected with artificial illumination in the past and present – from early attempts to promote new lighting technologies in the late 19th and early 20th centuries to current debates on restricting its excessive usage in public space and the protection of darkness. By bringing together a cross-section of current findings and debates on urban lighting and light pollution from a wide variety of disciplines, it reflects that artificial lighting is multifaceted in its qualities, utilisation and interpretation. Including case studies from the United States, Europe, and the UK, Urban Lighting, Light Pollution and Society is one of the first to take a serious assessment of light, pollution, and places and is a valuable resource for planners, policy makers and students in related subjects.

Light Pollution As A New Risk Factor For Human Breast And Prostate Cancers

Author : Abraham Haim
ISBN : 9789400762206
Genre : Medical
File Size : 32. 77 MB
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Humans are diurnal organisms whose biological clock and temporal organization depend on natural light/dark cycles. Changes in the photoperiod are a signal for seasonal acclimatization of physiological and immune systems as well as behavioral patterns. The invention of electrical light bulbs created more opportunities for work and leisure. However, exposure to artificial light at night (LAN) affects our biological clock, and suppresses pineal melatonin (MLT) production. Among its other properties, MLT is an antioncogenic agent, and therefore its suppression increases the risks of developing breast and prostate cancers (BC&PC). To the best of our knowledge, this book is the first to address the linkage between light pollution and BC&PC in humans. It explains several state-of-the-art theories, linking light pollution with BC&PC. It also illustrates research hypotheses about health effects of light pollution using the results of animal models and population-based studies.

The Dark Side

Author : David Owen
ISBN : OCLC:166291190
Genre : Astronomy
File Size : 47. 70 MB
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Writer David Owen describes Galileo Galilei's 1610 astronomical observations. Today, by contrast, most Americans are unable to see the Milky Way in the sky above the place where they live. The stars have not, of course, become dimmer; rather, the earth has become vastly brighter, so that celestial objects are harder to detect.

Light Pollution In Metropolises

Author : Emlyn Etienne Goronczy
ISBN : 9783658297237
Genre :
File Size : 64. 31 MB
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Vanishing Night Skies

Author : David J. Simon
ISBN : MINN:31951D01914813P
Genre : Exterior lighting
File Size : 50. 48 MB
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Light Pollution Caused By Building Fa?ade Lighting And Signs Attached To Buildings

Author : Chung-yun Juan Lo
ISBN : OCLC:769086534
Genre : Light pollution
File Size : 88. 13 MB
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Light Pollution Radio Interference And Space Debris

Author : International Astronomical Union. Colloquium
ISBN : UCAL:B4515493
Genre : Airglow
File Size : 21. 52 MB
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Light Pollution

Author : David Gallant
ISBN : 1715220684
Genre :
File Size : 77. 99 MB
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Fine art photography by David Gallant. Images of female models with a mix of natural light and artificial light.

Light For Cities

Author : Ulrike Brandi
ISBN : 9783764376291
Genre : Architecture
File Size : 46. 6 MB
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Improvement of public lighting is an effective and also cost-efficient measure for the sustainable enhancement of inner cities. Many cities in Germany and Europe have now realised this and are investing in complete new urban lighting schemes, devised on the basis of lighting masterplans, to make them competitive with other cities or to revitalise their city centres. Even though this is a sweeping and lasting trend, there is as yet no typology of urban lighting. This book will set first standards, presented in a practical handbook. It contains technical and professional aspects and the authors' experience of successful communication with other consultants, authorities and investors, as well as information regarding feasibility and possible financing options. The book is structured accordingly, and fully illustrated in colour with photographs, plans and detail drawings.

Light Pollution

Author : Council for the Protection of Rural England
ISBN : OCLC:1110307866
Genre :
File Size : 24. 58 MB
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Dark Matters

Author : Joan Marie Galat
ISBN : 0889955158
Genre : Juvenile Nonfiction
File Size : 59. 53 MB
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Thirteen-year-old Joan loves the outdoors; she loves looking up at the night sky. She learns that all the light humans use is harming that beautiful natural world. Galat introduces the idea of light pollution to young scientistsNits effects on birds, animals and the dire consequences to entire ecosystems if it is not controlled.

Outdoor Lighting Physics Vision And Perception

Author : Duco Schreuder
ISBN : 9781402086021
Genre : Technology & Engineering
File Size : 89. 24 MB
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The present book is based on the experience of the author. The experience is mainly the result of years of research, of consulting work, and in participation in policy decision making in many felds, most, but not all, related to outdoor lighting. To some degree, the book represents the preference of the author. The selection of the subjects is based on more than 50 years of experience of what is desirable to know for persons engaged in scientifc research or practical application in the felds of lighting and vision. The subjects deal with a number of fundamental aspects. The theorists must have them at their fngertips, whereas the practical engineers may assume them as known in their daily work. The selection of subjects is based in part by the questions that came to the author over the years, but even more by the preference of the author himself. In this respect, it is a personal book. Thus, it should be stressed that the book is not a ‘handbook’ or even a ‘textbook’; many subjects that commonly are treated in such books are not included here. Not because they lack importance, but because the author feels that they are adequately treated elsewhere. Some relevant works are mentioned in the References. Over the years, the author has been engaged in giving courses on vision and lighting, lately more in particular on Masterclasses on a post-graduate or post-doctorate level.

Light Pollution A Global Discussion

Author : Nona Schulte-Römer
ISBN : 3944280032
Genre :
File Size : 68. 51 MB
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Visibility

Author : Books Llc
ISBN : 1155990374
Genre : Nature
File Size : 62. 73 MB
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 37. Chapters: Rayleigh scattering, Beer-Lambert law, Light pollution, Optical depth, Particulates, Mie theory, Twilight, Battenburg markings, Arctic haze, Sillitoe Tartan, Daylight, Diffuse sky radiation, Gloom, Blue hour, Angstrom exponent, Active daylighting, Direct insolation, Coefficient of haze. Excerpt: Light pollution, also known as photopollution or luminous pollution, is excessive or obtrusive artificial light. The International Dark-Sky Association (IDA) defines light pollution as: This approach confuses the cause and its result, however. Pollution is the adding-of/added light itself, in analogy to added sound, carbon dioxide, etc. Adverse consequences are multiple; some of them may be not known yet. Scientific definitions thus include the following: The first two of the above three scientific definitions describe the state of the environment. The third (and newest) one describes the process of polluting by light. Light pollution obscures the stars in the night sky for city dwellers, interferes with astronomical observatories, and, like any other form of pollution, disrupts ecosystems and has adverse health effects. Light pollution can be divided into two main types: (1) annoying light that intrudes on an otherwise natural or low-light setting and (2) excessive light (generally indoors) that leads to discomfort and adverse health effects. Since the early 1980s, a global dark-sky movement has emerged, with concerned people campaigning to reduce the amount of light pollution. Light pollution is a side effect of industrial civilization. Its sources include building exterior and interior lighting, advertising, commercial properties, offices, factories, streetlights, and illuminated sporting venues. It is most severe in highly industrialized, densely populated areas of North America, Europe, and Japan and in major cities in ...

The Interpretation Of Modern Synthesis Observations Of Spiral Galaxies

Author : Nebojsa Duric
ISBN : UOM:39015022020930
Genre : Active galaxies
File Size : 58. 11 MB
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Light Pollution Radio Interference And Space Debris

Author : David L. Crawford
ISBN : 0937797367
Genre :
File Size : 75. 23 MB
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