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Physics Essay

Uses of Electron Microscope
As early as middle of 19th century, microscopists realized that structures less than half a micrometre could not be resolved with a light microscope. At the same time researchers had hinted at the possibility of improvement in the resolution of microscope using electrons rather than light. This is because accelerated electrons behave in vacuum just like light, they travel in straight lines and have a wavelength which is about 100,000 times smaller than that of light. Also, electric and
Pages: 17 (6250 words), Essay
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U.S. Fish & Wildlife Service
When this happens, the food supply of these bears becomes limited; thus, grizzly bears go after the farm animals of the settlers. In turn, these settlers hunted the bears until they were almost extinct (Potts, 1997, p.Primarily, it was the dwindling number of existing grizzly bears that prompted their being threatened. In an article, it says that human activities that occur in the habitat of grizzlies also deprive these animals of territory and food supply. These activities include timber
Pages: 4 (1000 words), Essay
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UK Strategy for Radioactive Discharges
In the prevention of waste disposal or radioactive discharges in one Member State that lead in the contamination of a neighboring Member State’s environment based on Article 37. Therefore, the European Commission makes decision on whether a plan for disposal of radioactive waste can lead in the contamination of the soil, water, or air of another Member State. It is important to state that the defence sites are not subjected to the Euratom Treaty regulation (Department of Energy & Climate
Pages: 8 (2000 words), Essay
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Understanding graphene's thermal properties: A phonon prospective
Apparently, thermal properties issues have been encountered both in the photonic and optoelectronic devices [4].Fundamentally, materials ability to conduct heat is based on the arrangement of atomic structure. The restructuring of atomic structure will alter the thermal properties of a material on a nanometer scale [15]. Primarily, nanowires and bulk crystals don’t allow transfer of charges or heat due to high components of photons, dispersion or scattering of photon. Studies shows that the K
Pages: 9 (2250 words), Essay
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Understanding graphene's thermal properties: A phonon prospective
The planes of graphene on the graphite crystal are due to weak van der Waal forces between them. The anisotropic nature of the crystals can be used to determine the thermal attributes of graphene.Basically, the elimination of heat loss in electronic devices has been a problem encountered by various researchers in an electronic industry. Therefore, the industry has put more efforts and resources in searching for better materials which dissipates less heat in order to better improve innovations
Pages: 9 (2250 words), Essay
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