By its formal definition, light pollution means the superfluous, unwanted, or poor use of manufactured light during nighttime. Other aliases include photopollution and luminous pollution. This is correct, by all means, but is inadequate in such a way that it doesn’t speak for all the parts that go into light pollution. In other words, light pollution is much more than...
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1. Introduction As a fundamental constant, the exact value of the speed of light has been disputed for centuries. The measurement of the speed of light brought arise to new areas of Physics such as Einstein’s Theory of Relativity. This Theory of Relativity was based entirely on the relativistic effects caused by objects moving near the speed of light. This...
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Abstract: Advance illumination instruments have changed the scenario in distribution and intensity of lighting systems in this world. Development from fluorescent to white LED (light emitting diode) opens the door of illumination, pest control application and eco-friendly lighting. Color sensitivity in UV spectrum plays crucial role in navigation; meet selection, excitation in terrestrial invertebrate animals. This review shows the importance...
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Abstract – Active street lighting has emerged as an essential factor in strategies for a resource-efficient economy and realization of sustainable growth. In the outdoor area, lights represent approximately 40 % of the total energy consumption at night and have much energy saving potential. If passers-by or vehicles, summarized as traffic elements, are not located near street lamps, it is...
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Abstract The main aim of the project is to design a circuit which would allow the detection of light by using a photodiode and to critically assess in details how a light sensing circuit using a photodiode works to obtain a desired output. This is achieved by using a transistor Darlington pair, four resistors (2*330, 1k, 4.7k), one LED and...
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Introduction What is the speed of light and what affects? This question has been asked for hundreds of years and the answer is simple. The speed of light is approximately 299,792,458 m/s (Las Cumbres Observatory, 2019). This answers the first part of the question, but what about the second part? What affects the speed of light? The purpose of this...
Light
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Abstract— Capturing photos in low light conditions is a difficult situation for photographers to get optimal image results. Low light conditions can occur at night, in the forest or in a dark room. The image quality in low light conditions is not good because the objects in the picture are lack of light which makes some objects blur and hard...
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Human beings have been trying to understand how light works since the time of the Ancient Greeks. In roughly 300 BC Euclid studied the properties of light, he thought light travelled in straight lines and described the laws of reflection. In 1690 Sir Isaac Newton came out with the corpuscular theory of light, he believed that light was shot out...
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Blue light is a spectrum of light that can be seen by humans’ eyes. Blue light produces a high amount of energy due to its short wavelength of 400-450 nm. Phones, computers and other electronic products with screen emit blue light and ever since phones became mainstream more people have started using their devices longer with many people having the...
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Daylight saving time, DST, more commonly called daylight savings has been part of Australia since at least 1971 except for Queensland, the Northern Territory, and Western Australia. However, this should change. All of Australia should partake in daylight savings. Good morning/afternoon Ms. Rae and class. By only having selected states or areas participating in daylight savings, it puts the rest...
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Rainbows are known for presenting themselves as a varied and fascinating phenomenon to the observers. The explanation of the formation of rainbows in optics usually incorporates the discussion of light rays through their bunching and spherical drop for certain angles of deflection, which corresponds to both the first-order and the second-order rainbows. Notably, rainbows have generated multiple myths and legends...
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Many people in this world really underestimate how physics contributes to our daily lives whether be walking, talking, or any other action. Many equations, graphs, and a little bit of math help us understand what goes on behind the curtain. Physics also have shared relations with science and combining those physics to other types of studies. To understand physics, we...
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