Diamond’s Guns‚ Germs‚ and Steel Why do some nations have so much material wealth while so many others have so little? This was the question Jared Diamond posed in his book Guns‚ Germs‚ and Steel. After identifying a point in time when all societies were roughly equal (over 13‚000 years ago)‚ Diamond identified the key variables that allowed some societies to develop highly complex‚ material-rich societies‚ while others developed at much slower rates. Guns‚ Germs‚ and Steel uncovers how Europeans
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Iron‚ Steel and Aluminium Main sources of iron: * second most abundant metal (5% by mass) in Earth’s crust (fourth most abundant element) * found in rock (a mixture of minerals) as one or more minerals (usually a compound) * if a mineral is of economic importance‚ it is referred to as an ore * iron containing minerals include hematite (Fe2O3)‚ magnetite (FeO·Fe2O3 or Fe3O4)‚ limonite (FeO(OH)·nH2O) and siderite (FeCO3) Alloys: * homogeneous mixtures of metals or metals and
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land of the rivers. Dhaka city‚ the capital of Bangladesh is surrounded by the rivers-Turag‚ Buriganga‚ Dhaleshwari‚ Balu and Shitalakhya. A number of canals are connected to these rivers‚ which form a river canal network system. There are both residential and industrial units besides these rivers which are prime source of pollution of these rivers. The untreated waste water discharges by the industries cause serious pollution. Besides‚ non point sources along with the stretch of the river are also
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The Ride of Steel has many safety features to keep the passengers safe. In the initial climb up to point A‚ 12‚000 moving parts make up the large gear and chain assembly that pulls the car to the top. There are over 40 sensors that monitor the climb so that if at any point a chain breaks‚ the sensors lock the car into place with magnetically controlled safety locks that stop the car in seconds. To keep the car on the track‚ there are three wheels in the undercarriage of the
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Guns‚ Germs‚ and Steel Essay Guns‚ Germs‚ and Steel is an amazing book. When I first looked at it I told myself I would never be able to read it because it was so big‚ but I knew I had to. By the title I thought it was going to be about the Civil War. When I began reading Yali’s question I realized that it was about early civilizations and their advancements. When I started reading the book it was very boring and I didn’t know how I was going to finish it. As I got to around page 75 I began to
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4140 Steel The first metal sample that will be discussed is 4140 steel. This sample was subject to multiple heat treatment processes that included quenching‚ normalizing‚ full annealing‚ and tempering. The micrographs of the heat treated samples can be seen below in Figure 2. Figure 2: 4140 Steel Micrographs 100X a) Baseline‚ prepared by Bryan Biggs b) Quenched‚ prepared by Cameron Palkowski c) Normalized‚ prepared by Michael Rodriguez d) Full Annealed‚ prepared by Avery Callahan e) Tempered
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Stainless steel commonly react with certain substance that probably will produce some defect whether inner or outer surface. This material contains small casting defects‚ mainly shrinkage cavities‚ due to the manufacturing process. Commonly in industries related to piping system‚ stainless steel pipelines and cylinder tubes are equipment or object that frequently used in our removable insulation installation. In most industrial nowadays‚ stainless steel pipes are frequently exposed to high temperatures
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Guns‚ Germs‚ and Steel Instructor: Judith L. Tucker‚ M.S Class: Crim 174 In this video‚ Guns‚ germs‚ and steel are a fascinating perspective taken by Professor of Geography and Physiology at UCLA‚ Jared Diamond. His purpose was to explain why Eurasian civilizations have had such immense success conquering people and land other than their own. Why Europeans were the ones to conquer the world? As Diamond states that questions asked based on guns‚ germs‚ and steel are the biggest‚ most fascinating
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Superman (1978) and Man of Steel are two very different films that are based on the same idea. Both films were made in times where technology changed the quality of each film. Superman (1978) was made 35 years earlier to that of Man of Steel. One sees the difference in both films when looking at the posters of each film. Poster 1 is a Superman (1978) poster which shows the title of the film and the famous Superman logo in the middle. The poster shows how old it actually is due to the quality of the
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Introduction and Situational Analysis Merck and River Blindness ethical dilemma is whether to pursue research that may or may affect the profits‚ or to choose a safer choice and go for profit rather than researching the drug. The outcome from researching the drug could possibly lead to healing the deadly and dangerous disease known as River Blindness. This drug is known to kill the parasite that has caused the disease. The problem with this situation was that the consumers of the drug could not pay
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