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The GravityLight Foundation aims to improve the lives of people without electricity by providing clean, safe and affordable lighting That light can cause pollution is a new idea for most people, and many may think it is not really very important except to astronomers. But light pollution interferes with living systems in many ways, causing, for example, sea turtles to lose their way to the sea, migrating birds to become confused and strike buildings, and plant seasonal cycles to be disturbed. It also affects human hormone cycles and our day-and-night cycles of sleep and wakefulness. Using light carelessly wastes energy, resources used to make the energy, and interferes with everyone’s visibility not only of stars but also of things on the ground that we need to see. By an accident I turned off the camera when the picture wasn’t fully out and I pulled it out but now it flashes red loading lights and doesn’t even take pictures If a street light is shining into your property and causing you a problem, we may be able to adjust the light to fix the problem. If this does not work, we can try other things such as fitting a screen or shield to blank out part of the light, however there may be a charge for this if we have not made any recent changes. An English journal has become alarmed at the relation of electricity to songbirds, which it maintains is closer than that of cats and fodder crops. How many of us, it asks, foresee that electricity may extirpate the songbird?…With the exception of the finches, all the English songbirds may be said to be insectivorous, and their diet consists chiefly of vast numbers of very small insects which they collect from the grass and herbs before the dew is dry. As the electric light is finding its way for street illumination into the country parts of England, these poor winged atoms are slain by thousands at each light every warm summer evening….The fear is expressed, that when England is lighted from one end to the other with electricity the song birds will die out from the failure of their food supply.[77] Lighting is responsible for one-fourth of all electricity consumption worldwide,[citation needed] and case studies have shown that several forms of over-illumination constitute energy wastage, including non-beneficial upward direction of night-time lighting. In 2007, Terna, the company responsible for managing electricity flow in Italy, reported a saving of 645.2 million kWh in electricity consumption during the daylight savings period from April to October. It attributes this saving to the delayed need for artificial lighting during the evenings. Dear sir I want full lcd light track way in oppo Neo -7 The street lighting service provides and maintains the majority of the 26,000 streetlights and 4,000 lit signs and bollards throughout Warrington. The IDA, founded 30 years ago, gathers and disseminates light-pollution information and solutions. It has played a pivotal role in turning the tide in the light-pollution war. The IDA is winning over key sectors of the nonastronomical public — including government groups, sections of the lighting industry and electric utilities — arguing that good lighting for astronomers equals energy savings and more attractive surroundings for everyone else. ​Please help us by giving detailed information about the problem. For example, tell us if the light is out altogether, going on and off, burning all day or intermittent and include the number of the column if you can. If you can’t see this then please state the exact location or adjacent house number. 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] Zoom in to click on street light icon on the map below then select the problem from the drop down list. This did not fix the problem. The two bulbs were still coming on dimly at the same time when pressing the brake pedal.  Now I should turn this into a contest. You electrical wizards out there may already have a good guess.  In all my years of working on all types of cars – almost every time I have run across a problem with front and rear lights doing weird things – and by that I mean not glowing brightly, cross feeding, coming on at the wrong time, intermittent operations, etc, etc, it has almost always turned out to be an electrical grounding problem.  And it was no different here.  I took a close look at the grounding strap connecting points and I could see corrosion.  I applied some dielectric grease and squeezed the contact points together with some needle nose pliers and Wallaah – the running bulb went off and the brake light bulb came on super bright.  A good day and another one fixed. Hi Santosh, nice article. I have a Redmi 3s where the backlight is not working. I can see the display if I shine a flashlight directly on it. But we may be paying a price for basking in all that light. At night, light throws the body’s biological clock—the circadian rhythm—out of whack. Sleep suffers. Worse, research shows that it may contribute to the causation of cancer, diabetes, heart disease, and obesity. Sometimes it is not possible to completely get rid of the problem, as this may prevent the street light from being effective so we may need to find a compromise. About 1.7 billion people or more than a fifth of the world’s population are without access to electricity and modern lighting. The problem is most severe in rural areas or on the fringes of cities. , however the extent to rural electrification varies widely from country to country.  For example, 90% of Africa is not served by grid electricity versus 20% of Mexico. In fact, some African countries, for example, Rwanda and Burundi have barely passed the 1% electrification threshold! Hi Santosh, nice article. I have a Redmi 3s where the backlight is not working. I can see the display if I shine a flashlight directly on it. Few creationists have aggressively pursued solution one. The reasoning for this solution has been that if the distances of astronomical objects are not known that well, then astronomical bodies may be far closer than generally thought, and hence there is no light travel time problem. This solution amounts to defining the problem away, but there are additional problems with this solution. First, creationists who have suggested this solution do correctly point out that trigonometric parallax, the only direct method of measuring stellar distances, yields distances that at most are only a few hundred light years. So this could explain why we see all the stars for which we have directly determined distances. One might further reason that since the distance determination methods that give very great distances that cause the light travel time problem today are indirect, those indirect methods are somehow suspect. However, one cannot dismiss the indirect methods so easily. Most of these methods are based upon well understood physical principles, and many of the indirect methods are calibrated to trigonometric parallax. See Faulkner (2013) for a discussion of distance determination methods. Second, this solution relies upon the incorrectly formulated light travel time problem. While today we can see stars such as Alpha Centauri, the closest star similar to the sun, with this solution it would not have been visible to Adam at the conclusion of the Creation Week, because it is 4.3 light years away. For this solution to work, even the well determined trigonometric parallax method must be abandoned, but this is not physically supported. 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