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A wide variety of fuel-based light sources are used in developing countries, including candles, oil lamps, ordinary kerosene lamps, pressurized kerosene lamps, bio-gas lamps and propane lamps. However, worldwide, an estimated 1.6 billion people use kerosene or oil as their primary source of fuel for lighting. Current public lighting in Australia, particularly for minor roads and streets, uses large amounts of energy and financial resources, while often failing to provide high quality lighting. There are many ways to improve lighting quality while reducing energy use and greenhouse gas emissions as well as lowering costs.[33] A study presented at the American Geophysical Union meeting in San Francisco found that light pollution destroys nitrate radicals thus preventing the normal night time reduction of atmospheric smog produced by fumes emitted from cars and factories.[82][83] The study was presented by Harald Stark from the National Oceanic and Atmospheric Administration. Currently, the most popular idea is called ‘inflation’—a conjecture invented by Alan Guth in 1981. In this scenario, the expansion rate of the universe (i.e. space itself) was vastly accelerated in an ‘inflation phase’ early in the big bang. The different regions of the universe were in very close contact before this inflation took place. Thus, they were able to come to the same temperature by exchanging radiation before they were rapidly (faster than the speed of light1) pushed apart. According to inflation, even though distant regions of the universe are not in contact today, they were in contact before the inflation phase when the universe was small. Hello. Awhile ago i tried to take photo with my instax. Then the red light were blinking. I tried to change batteries and the red lighy disappeared but i couldnt take photos LED in any mobile cell phone is an electronic component or part that generates light in the Mobile Phone. These are generally LED or Light Emitting Diode. There are 2 types of connection in the Light Section of a Mobile Phone: (i) Series Connection; and (ii) Parallel Connection. Please my fero pace home , exit, and option led light so I can’t enjoy my adroid phone in the night because i don’t see the option pads down my screen, could it be settings. Regarding energy consumption, the past five or six years have seen a slow transformation from garish, peach-colored, high-pressure sodium vapor streetlights — which have long been recognized to be energy-inefficient — to light-emitting diode (LED) streetlights, which use solid-state technology to convert electricity into light.  Light pollution is a topic gaining importance and acceptance in environmental discourse. This concept provides a framework for categorizing the adverse effects of nighttime lighting, which advocacy groups and regulatory efforts are increasingly utilizing. However, the ethical significance of the concept has, thus far, received little critical reflection. In this paper, I analyze the moral implications of framing issues in nighttime lighting via the concept of light pollution. First, the moral and political importance of problem framing is discussed. Next, the origins and contemporary understandings of light pollution are presented. Finally, the normative limitations and practical ambiguities of light pollution are discussed, with the aim of strengthening the framework through which decisions about urban nighttime lighting strategies are increasingly approached. Hi can someone help me! My flashlight won’t work.. anybody who had the same problem? 1. FPL does not own or maintain streetlights on aluminum poles located on major highways, like I-95 or the Florida Turnpike. If you are a customer of one of our electric companies, please log in or use quick access to alert us of the lighting problem. “The customer is really, in the long run, potentially hurting their pocketbook by leaving that light on and ignoring it,” says Jim Collins, a national training team leader for Ford Motor Co. In some extreme cases, the car’s computer may reduce power for you as it tries to limit the risk of damage. A first step is to consider the limitations for application, for which a consideration of language will be helpful. As the above discussion in Section 3 makes clear, light pollution is not simply a description of certain environmental impacts, but also an evaluation of the effects of nighttime lighting technologies and infrastructure. Light pollution is both a descriptive statement and a value judgment with normative implications—it categorizes certain uses and types of lighting as bad or wrong. Historically lighting often functioned as a form of safety and protection at night, but there has been a reversal. Now humans, animals, and the night sky require protection from artificial light. Importantly, articulating this shift in perspective via the notion of light as a pollutant adds a moral level to an otherwise technical discussion of illumination. But, in considering the creation of a moral space for deliberation, we should reflect on the implications of this label. Garrard (2004 Garrard, G. (2004). Ecocriticism. New York, NY: Routledge. [Google Scholar]), in assessing Rachel Carson’s iconic Silent Spring, notes that one of the book’s lasting achievements was expanding what was previously seen as a scientific issue (the usage of pesticides) into a social problem. By this, Garrard is referring to the categorization of pesticides as pollution. This is because ‘pollution’ does not name an actual thing, but rather provides an implicit normative claim that ‘too much of something is present in the environment, usually in the wrong place’ (2004 Garrard, G. (2004). Ecocriticism. New York, NY: Routledge. [Google Scholar], p. 6). Carson helped to reframe perspectives, allowing the usage of pesticides to be contested morally and politically. The same can be said of the concept of light pollution, generally considered: it breaks with the historical meanings and values associated with nighttime lighting, reframing discussions as a debate over how we ought to preserve and protect the night sky, as well as protect ourselves and ecosystems, from excess artificial light. Astronomy is very sensitive to light pollution. The night sky viewed from a city bears no resemblance to what can be seen from dark skies.[78] Skyglow (the scattering of light in the atmosphere) reduces the contrast between stars and galaxies and the sky itself, making it much harder to see fainter objects. This is one factor that has caused newer telescopes to be built in increasingly remote areas. Some astronomers use narrow-band “nebula filters” which only allow specific wavelengths of light commonly seen in nebulae, or broad-band “light pollution filters” which are designed to reduce (but not eliminate) the effects of light pollution by filtering out spectral lines commonly emitted by sodium- and mercury-vapor lamps, thus enhancing contrast and improving the view of dim objects such as galaxies and nebulae.[79] Unfortunately these light pollution reduction (LPR) filters are not a cure for light pollution. LPR filters reduce the brightness of the object under study and this limits the use of higher magnifications. LPR filters work by blocking light of certain wavelengths, which alters the color of the object, often creating a pronounced green cast. Furthermore, LPR filters only work on certain object types (mainly emission nebulae) and are of little use on galaxies and stars. No filter can match the effectiveness of a dark sky for visual or photographic purposes. Due to their low surface brightness, the visibility of diffuse sky objects such as nebulae and galaxies is affected by light pollution more than are stars. Most such objects are rendered invisible in heavily light polluted skies around major cities. A simple method for estimating the darkness of a location is to look for the Milky Way, which from truly dark skies appears bright enough to cast a shadow.[80] The challenge faced by 21st century policymakers is to provide outdoor light where and when it is needed while reducing costs, improving visibility, and minimizing any adverse effects on plants, animals, and humans caused through exposure to unnatural levels of light at night. (Kyba et al., 2014 Kyba, C., Hänel, A., & Hölker, F. (2014). Redefining efficiency for outdoor lighting. Energy & Environmental Science, 7, 1806–1809.10.1039/C4EE00566J[Crossref], [Web of Science ®] [Google Scholar], p. 1807) Masculin Active Tonus Fortis Masculin Active Penigen 500 power up premium eracto BeMass Testogen Testogen Testo Ultra