TOPIC 2 Metals The History of Metals * Uses of metals through history: * Copper Age (3200-2300 BCE) – copper and tin were most common metals‚ and were used for ornaments‚ weapons and tools. * Bronze Age (2300-700 BCE) – copper‚ tin and bronze were used for tools‚ weapons and transport. They produced bronze by heating copper and tin with charcoal. * Iron Age (1000 BCE – 1 CE) – iron steel and lead was used for tools‚ weapons and pipes. Iron is much harder than bronze.
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The brass alloy we are experimenting on is called Muntz Metal. Muntz metal is 60% copper‚ 40% zinc and a hint of copper [http://en.wikipedia.org/wiki/Muntz_metal] (accessed 4/10/12). Muntz metal was developed as an alternative to expensive‚ heavy copper. It is comprised of about 60% copper and about 40% zinc‚ with a small amount of iron. The finished product actually is considered a form of brass‚ but it has maintained its name of Muntz metal. [http://www.wisegeek.com/what-is-muntz-metal.htm] (Accessed
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SCRIPT Welcome Speech: Good morning/ afternoon/ evening parents! We extend a very warm welcome to all of you to our second Annual Concert- Different Strokes. A lot has gone into making this an unforgettable experience for you‚ so fasten your seat belts and sit tight as you are about to witness an amalgamation of your little ones’ hard work and untiring efforts. Video of The Making This visual only showcases a teeny-meeny bit of what actually goes on behind the scenes during Theatre Arts sessions
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Meanings and Definition of Demand: The word ’demand’ is so common and familiar with every one of us that it seems superfluous to define it. The need for precise definition arises simply because it is sometimes confused with other words such as desire‚ wish‚ want‚ etc. Demand in economics means a desire to possess a good supported by willingness and ability to pay for it. If your have a desire to buy a certain commodity‚ say a car‚ but you do not have the adequate means to pay for it‚ it will
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26 2.3 Metal Forming Valery Marinov‚ Manufacturing Technology SHEET METALWORKING Classification of Sheet Metalworking Processes Basic sheet metalworking operations: (a) bending‚ (b) drawing‚ and (c) shearing; (1) as punch first contacts sheet and (2) after cutting. Force and relative motion are indicated by F and v Cutting Operations Shearing Shearing is a sheet metal cutting operation along a straight line between two cut-ting edges by means of a power shear. Shearing
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Full Body Scanners in Airports A full body scanner that is a device that is able to detect objects hidden under clothing by constructing a full 3-D image of a person‚ complete with detailed body contours. There are presently two types of scanning technology that are used in full body scanners: millimeter wave scanners and backscatter scanners. A millimeter wave scanner is able to use radio waves that are of tremendously high frequencies‚ which are decoded in order to produce a 3-D image. A backscatter
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Extrusion is the process by which a block/billet of metal is reduced in cross section by forcing it to flow through a die orifice under high pressure. • In general‚ extrusion is used to produce cylindrical bars or hollow tubes or for the starting stock for drawn rod‚ cold extrusion or forged products. • Most metals are hot extruded due to large amount of forces required in extrusion. Complex shape can be extruded from the more readily extrudable metals such as aluminium. * The products obtained are also
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London Heathrow Airport. London’s Heathrow is one of the world’s busiest airports. It is used by over 90 airlines flying to 170 destinations worldwide. The airport has five passenger terminals and a cargo terminal. In the 1950s‚ Heathrow had six runways‚ now it has just two parallel runways running east-west. Heathrow has witnessed strong growth over recent decades‚ currently handling 68 million passengers and 477‚000 flights a year compared to around 48 million passengers and 427‚000 flights
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Cumberland Metal Industries capitalize on their evolving position as a leader in the curled metal industry and effectively launch their new curled metal cushion pads to be positioned as the “new industry standard” in the pile driving market. In order to successfully launch this product‚ we first and foremost recommend that CMI acquire a patent to prevent this product from being copied and imitated‚ thus avoiding the entry of competitors. The associated value and advantages of CMI’s metal cushion pads
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Case Analysis: The Annual Report 1. The basic factors of communication that must be considered in the presentation of the Annual Report are compliance with accounting principles and regulations‚ accuracy of the information presented‚ and how much information you are going to disclose. The management has a lot of control over what and how much information it wants to disclose to the users of their financial report. Users can be shareholders‚ investors‚ customers‚ or if you want it or not‚ competitors
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