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Physics Essay

Riblets and Tripwires and their role in reducing drag over underwater aerofoils
Tripwires: Tripwires, also known as turbulators, are thin wires that are attached at the hull of a vehicle or at the nose of a submarine or aircraft. These are used to “trip” or disturb the boundary layer and introduce turbulence, thereby reducing pressure drag. These are “one of the oldest and most used methods of turbulence stimulation”.To
Pages: 4 (1000 words), Essay
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Review of a book about physics
The chapters about energy are perfectly written and I hope that this is a book that will be read widely and extensively.A host of problems regarding energy and global warming are in the news day after day. In this excellently written text, the writer provides a careful and smart examination of the matter as well as a dose of soberness on the real and possible solutions. Nonetheless, rare in the field, we find that the text is both up to date, yet written in stylish prose and accessible. The
Pages: 8 (2000 words), Essay
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Research paper
Developed countries are turning to nuclear energy as an alternative source of power. The united States is the largest producer of nuclear energy in the world and accounts for at least 30% of the world’s nuclear electricity generation. Developing countries are investing millions into research and exploration of this kind of energy.Green house gas emissions by nuclear power is smaller as compared to coal (Lovins 35).In order to stem the spread of nuclear weapons, counties came together and
Pages: 8 (2000 words), Essay
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Research Papre
This natural process occurs in order to give the earth a temperature which is of a stable state and not to allow rapid heating or cooling in the earth’s atmosphere.Generally speaking, only one percent of the earth’s atmosphere is comprised of greenhouse gases .But this greenhouse gas has a feature of trapping heat in the atmosphere and creating a warm blanket of air around the planet. This is what is known as “green house effect”. Without this greenhouse effect, the earth would have
Pages: 8 (2000 words), Essay
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Running Water and Ground Water
Wells lie directly over the aquifers. Underground aquifers are good in holding water for longer periods as compared to the above ground water resources. There is no evaporation of water from the underground aquifers. However, little water that comes to the surface due to capillary effect evaporates form the surface (Hynes, 1983).Aquifer is an underground soil or group of rock that allow the underground water to pass through them and move according to the hydrodynamics of water. However, the
Pages: 6 (1500 words), Essay
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Reprocessing Nuclear Fuel
Low level wastes can comprise 90% volume but only 1% of the radioactivity of all radioactive waste. Intermediate level waste contains higher amounts of radioactivity, mainly comprises resins chemical sludge, metal fuel claddings and contaminated materials from reactor decommissioning. Some of the intermediate level wastes require shielding.7% of the intermediate level waste contains an estimate 4% of radioactivity (Nikitin, Andrews & Holt, 2009, pp112- 167). High level radioactive wastes have
Pages: 14 (3500 words), Essay
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Reprocessing Nuclear Fuel
Low level wastes can comprise 90% volume but only 1% of the radioactivity of all radioactive waste. Intermediate level waste contain higher amounts of radioactivity, mainly comprise resins chemical sludge, metal fuel claddings and contaminated materials from reactor decommissioning.in handling these wastes the smaller once and those non solids can be solidified in concrete or bitumen to dispose, some of the intermediate level wastes requires shielding.7% of the intermediate level waste contains
Pages: 14 (3500 words), Essay
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Response to the book
This will result to the extinction of these species (Leakey and Lewin, 27). This information is true basing my argument on Cantilena Island, which was known to develop a unique flora before man has destroyed it by inhabiting making it for his agricultural benefits. The unique flora is now extinct.The book states that the more man is becoming knowledgeable in science the more harmful he is becoming to other species. This is due to the biological convulsion that involves introducing an alien
Pages: 5 (1250 words), Essay
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Renewable Energy "sun"
According to Bailey et al. (1997), its value is now accepted to be 1. “This figure is estimated to be about 1,000W/m2 on the earth’s surface when the sky is clear”.When the sun’s surface temperature is almost 6000K the electromagnetic irradiance from the sun is spread over wavelengths ranging from 0.3 to 3µm. About 50% of solar irradiance is infrared, 40% is visible light and 10% is ultraviolet radiation. However, it is difficult to evaluate solar irradiance at the earth’s surface
Pages: 6 (1500 words), Essay
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Relationship between Einstein and Dostoevsky, how science is related to art
Emanating from his work, is summed up in a quote attributed to the scientist, with regard to how Dostoevsky, according to Einstein, is able to provide more to Einstein in comparison to any scientist, and in particular more than what Gauss had given him. This is not a trivial quote, and can be construed as a recognition from Einstein that what Dostoevsky gave him in terms of a vision from the arts is more than what science had been able to provide him up until that point in his life. Here then
Pages: 9 (2250 words), Essay
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Radioactivity experiment
That kind of process often leads to release of matter and energy, hence leading to a sort of transformation into a new substance. This entire process is known as transmutation, and has to do with the aspect of transformation of one element to another due to nucleus change. The transmutation process and radioactive decay will persist until new elements with more stable nucleus are formed. This process can either occur naturally or artificially.There exist three main categories of radiations,
Pages: 4 (1000 words), Essay
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Radioactivity experiment
That kind of process often leads to release of matter and energy, hence leading to a sort of transformation into a new substance. This entire process is known as transmutation, and has to do with the aspect of transformation of one element to another due to nucleus change. The transmutation process and radioactive decay will persist until new elements with more stable nucleus are formed. This process can either occur naturally or artificially.There exist three main categories of radiations,
Pages: 4 (1000 words), Essay
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Rock and soil in saudi arabia
The rock around which crude oil is formed is known as the reservoir rock. From here, crude oil accumulated towards the earths surface and gets trapped beneath the impermeable rock to form an oil reservoir. Saudi Arabia, unlike other countries where oil is extracted, is predominantly a desert region. This means that the oil tanks are trapped under layers of sandy soils where the impermeable rock is. In Saudi Arabia, most oil deposits are associated with sandstones as well as limestone with
Pages: 4 (1000 words), Essay
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Radation protection
When the nuclei of the radioactive elements, for instance, uranium suck up neutrons via nucleic fission causing the splitting of the nucleus into smaller nuclei thus the generation of energy, Y-rays, and extra neutrons (Olsson &Aasen,2009). Segments of the remaining neutrons are later absorbed via other atomic particles which then elicit the radioactivity to be a continuous process.For the control of further chained reactions; moderators are used to altering the section of particles of neutrons
Pages: 6 (1500 words), Essay
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