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Aluminium - Aluminium The history of Aluminium use Aluminium is now one of the most widely used metals, but one of the hardest to refine due to it's reactivity with other elements. Even as late as the turn of the century, Aluminium was considered very valuable and in turn expensive, even more expensive than gold. In some cultures, when a function was held (for example, a party) by wealthy people, only the most honored guests would be given Aluminium cutlery, the others had to make do with gold or silver cutlery....   [tags: essays research papers] 487 words
(1.4 pages)
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Alzheimer and Aluminium - ... Some cases of Presenile Alzheimer disease (occurring before the age of 65) run in families and are associated with mutation in the beta-amyloid precursor protein (APP) gene implicated in Alzheimer Disease. Elderly cases of Alzheimer disease are usually sporadic. Twins with typical genes (monozygotic twin pairs) do not share the same chance of developing Alzheimer disease, which provide evidence that environmental factors are highly important in the incidence of Alzheimer disease. Injecting laboratory animals like rabbits with aluminium salts results in appearance of extensive neurofibrillary changes in the spinal cord and various cortical regions....   [tags: Medical Research]
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Experiment to Find the Specific Heat Capacity of an Aluminium Block - Experiment to Find the Specific Heat Capacity of an Aluminium Block DATA COLLECTION: Mass(m) (kg) (5dp) Current(I) (A) (2dp) Voltage (V) (2dp) Time(t) (s) (0dp) Initial temp(T1) (ºC) (2sf) Final temp(T2) (ºC) (2sf) +/-( 5*10^ -4) % +/- (1*10^ -1) % +/- (4*10^ -2) % +/- (5*10^-1)s +/- 0.5 ºC +/- (5*10^ -1) ºC 0.99577 3.70 12.07 0 16.0 16.0 0.99577 3.70 12.08 60 16.0 18.0 0.99577 3.68 12.10 120 16.0 20.0 0.99577 3.66 12.11 180 16.0 22.0 0.99577 3.68 12.10 240 16.0 25.0 0.99577 3.64 12.08 300 16.0 27.0 0.99577 3.64 12.08 360 16.0 30.0 0.99577 3.65 12.03 420 16.0 33.0 DATA PROCESSING AND PRESENTATION: As Q=m.c.(T2-T1) Where Q= energy transfer C= specific heat capacity We can rearrange this to give: C= Q/(m(T2-T1)) And as power = energy/time Therefore E= Pt = Q And P = IV therefore Q = IVt Hence C= IVt/(m(T2-T1)) Which is rearranged to the form y=px + c to give: T2= (IVt / (m.C)) + T1....   [tags: Papers] 481 words
(1.4 pages)
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An Analysis of the Properties of Aluminum - An Analysis of the Properties of Aluminum Physically, chemically and mechanically aluminium is a metal like steel, brass, copper, zinc, lead or titanium. It can be melted, cast, formed and machined much like these metals and it conducts electric current. In fact often the same equipment and fabrication methods are used as for steel. Light Weight Aluminium is a very light metal with a specific weight of 2.7 g/cm3, about a third that of steel. For example, the use of aluminium in vehicles reduces dead-weight and energy consumption while increasing load capacity....   [tags: Papers] 1111 words
(3.2 pages)
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Electrolysis - Electrolysis Electrolysis is a chemical process by which electrical currents can be passed through solutions. Pure water cannot conduct electricity, but if a salt such as Sodium Chloride is dissolved in it, the solutions will start conducting if two electrodes are placed in it with a battery that provides the initial current. When we close the switch, copper ions on the anode will start to move through the solution to the cathode. The copper atoms have already given up two electrons to become ions and their electrons are free to move in the wires....   [tags: Papers] 491 words
(1.4 pages)
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Alloy Wheels - Alloys They are lightweight, better conductors of heat and fit more snugly than steel variants. But most importantly they improve fuel efficiency...No wonder aluminium alloy wheels are fast becoming the preferred accessory of car consumers IT'S now considered a wonder material for autoville. Aluminium, which is increasingly replacing steel in car factories across the world (including some of the more premium names in the business like BMW and Mercedes Benz), is also the preferred material for wheels, both automotive and otherwise....   [tags: Case Study, solution] 939 words
(2.7 pages)
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Which two metals combined together give the higher voltage when reacting with acid - Which two metals combined together give the higher voltage when reacting with acid Introduction In this investigation we will find out which two metals combined together give the higher voltage when reacting with acid. The metals used will be: · Aluminium · Zinc · Iron · Tin · Lead · Nickel · Copper To make a prediction on what metals will be the ones that give the highest voltage when combined together you need to find out if the position in which the metals are at in the reactivity series would make a difference, and if it does, how....   [tags: GCSE Chemistry Coursework Investigation] 1196 words
(3.4 pages)
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Investigating Which Metal Combination Gives Out the Most Voltage in a Solution - Investigating Which Metal Combination Gives Out the Most Voltage in a Solution Background Metals are an order of chemical elements in the periodic table. They are arranged in atomic number. All of them are solid (apart from mercury), good thermal and electrical conductors and are shiny when polished. Metals and non - metals are separated in the table by a diagonal line. -------------------------------------------------------------------- The reactivity series is a table to show which metals are most reactive to the least reactive....   [tags: Papers] 919 words
(2.6 pages)
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Expansion and Contraction of Materials - Expansion and Contraction of Materials When most materials are heated they expand and this increase their volume. One example of expansion is the fitting of the starter ring gear to the flywheel. The gear is heated until it expands sufficiently to pass over the rim of the flywheel, and when it is cool the gear tries to return to its original size, this gripping the flywheel with considerable force. All metals do not expand equally when heated through the same range of temperature, e.g. aluminium alloy expands more than cast iron; copper and brass expand more than mild steel....   [tags: Papers] 902 words
(2.6 pages)
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Heat Energy Investigation - Heat Energy Investigation In this experiment we will as accurately as possible measure the voltage, current, time, start temperature, final temperature and the mass of 7 different substances. We will measure the voltage to make the experiment more accurate, we will do this by making sure that every time we do an experiment we will keep the volts to 12v and nothing else, as this could affect the overall result. It is also needed as part of an equation that will be done later on....   [tags: Papers] 1170 words
(3.3 pages)
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Rocks and the Earth - Rocks and the Earth There are 3 main types of rock . These are sedimentary , metamorphic and igneous . Igneous rocks are formed by molten lava escaping from the mantle and cooling down to form solid , crystalline rock. The faster the new rock cools the smaller the crystals in the rock are. Eg Granite Sedimentary rocks are made when small chippings of rock accumulate on the seabed and are crushed together over thousands of years. These chippings are worn from rocks by wind, rain and ice , this is called erosion or weathering....   [tags: Papers] 728 words
(2.1 pages)
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Radioactivity Experiments - Radioactivity Experiments Aim: To determine the penetrating power and the range in air of the three radioactive emissions alpha, beta and gamma. Apparatus: * gm tube, * clamp stand, * the counter thing, * ruler, * set-square Method of penetrating power of Alpha particles, Beta particles & Gamma Rays: The equipment was set up as shown below to measure the penetrating power of each radioactive source. Geiger-Muller Tube Again the measurements were taken without the absorber to measure background radiation....   [tags: Papers] 948 words
(2.7 pages)
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Technical Report The Construction of Alloy Wheels - Technical Report The Construction of Alloy Wheels Introduction Aluminium alloy wheels are now used in all branches of Motor Racing, ranging from Touring cars and Rally cars to Formula One cars. The Alloy wheels offer far superior mechanical properties than the conventional steel wheels formerly used. These benefits include reduced un-sprung weight, i.e. not held by the suspension, providing more precise steering input and improved responsiveness. Alloy wheels also improve acceleration and braking due to the reduction of weight....   [tags: Design and Technology]
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(6 pages)
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The Problem of Acid Rain - The Problem of Acid Rain WHAT CAUSES ACID RAIN When power stations, factories, houses and cars release pollution into the air it has chemicals in it called sulphur dioxide and nitrogen oxides. SULPHUR DIOXIDE: Man-made sulphur dioxide comes mainly from burning fossils fuels in power stations. It then mixes with water in the atmosphere to make sulphuric acid, which will later fall as acid rain. NITROGEN OXIDES: Nitrogen oxides are also man-made and mainly come from car exhausts....   [tags: Papers] 859 words
(2.5 pages)
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Monopolies that make super normal profits aren’t in the public - Monopolies that make super normal profits aren’t in the public interest because they could charge a lower price than they do. Introduction: Monopoly is an emotive word, and the immediate reaction is that it should be replaced with competition. In this investigation we are going to look at what is a monopoly, what are barriers to entry and what types of barriers there are, what are normal and supernormal profits and to they bear any benefits to the public. What is a monopoly. Monopoly is a market situation in which there is a single seller of a product and there are no close substitutes of this product in the market....   [tags: Business and Management Studies] 1153 words
(3.3 pages)
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Turning a Mild Steel Bar - TASK: Turning a Mild Steel Bar.We were each given a mild steel bar to work into the shape shown in the drawing found on the following pages, TURNING TASK: Turning a Mild Steel Bar. We were each given a mild steel bar to work into the shape shown in the drawing found on the following pages, to do this we used the Turning Lathe in the workshop, but before we could start some measurements had to be taken. This meant using a micrometer to determine the diameter of the bar to begin with. A micrometer allows a measurement of the size of a body....   [tags: Design and Technology] 2186 words
(6.2 pages)
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advantages and disadvantages of vertical integration - ADVANTAGES OF VERTICAL INTEGRATION It leads to reduction of transportation costs as the common ownership results in closer geographic proximity. The transaction costs can be controlled if a firm acquires the other firms in the vertical chain, then one division of the same company will transfer goods to other divisions. So, transaction costs in form of transport, cost of negotiation, cost of control etc. will be eliminated. The overall average cost of the firm will decrease because if the divisions are under same management control then there will be in house supply and departmental heads will determine the transfer price....   [tags: essays research papers] 1124 words
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Corporate Strategy - ... This occurred because Australia undertook an intensive measure of importing products from China. In addition to this, Capral had to compete with unfavorable market conditions that were in existence. These conditions involved the government regulations, and rules on customs. As a consequent of this, an enormous amount of price dumping of products made of Aluminium was occurring in Australia (Capral 2011). The action of China to devalue its currency did more harm than good for the Australian industry....   [tags: Business Analysis ]
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1501 words
(4.3 pages)
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I Love Electronics - I Love Electronics I have been interested in electronics since I was a child. At the age 5 I made a plug of aluminium foil and I put it in the electrical wall socket. To my surprise I got an electric shock, the wall and socket consequently became blackened, we had no electricity for the rest of the day (I wasn't at all very popular). Following on from this incident, I was often found sitting by the side of the blackened socket looking at it and thinking. I never did try to make another aluminium foil plug....   [tags: College Admissions Essays] 359 words
(1 pages)
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Beta Particles - Aim: I will investigate how the field strength varies the deflection of Beta Particles. Preliminary Work I started my preliminary work because, when I started my measurements using 2 coils used in experiments to deflect electrons from and electron gun. While testing for the deflection of beta particles, I found that beta radiation was scattered in a very large cone, I can not get any readings with amount of beta radiation scattering. So I would have to construct some type of shielding for this investigation, this is so I can measure the deflection more easily....   [tags: essays research papers] 2191 words
(6.3 pages)
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Frank J. Horgan Filtration Plant - Frank J. Horgan Filtration Plant Introduction The Frank J. Horgan Filtration Plant is located Southeast of Toronto on the shores of Lake Ontario (See map). Its purpose is to provide safe drinking water to our taps by filtering the water. The water is gathered from Lake Ontario. This plant has a production capacity of 455 million litres per day to supply the residents of Toronto with drinking water. Its average production of drinking water is 355 million litres per day. It is also the newest filtration plant in Toronto....   [tags: essays research papers] 1143 words
(3.3 pages)
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The Age of Discovery of Elements - The Age of Discovery of Elements "The nineteenth century was the golden age for the discovery of elements. Scientists began to look for patterns of behaviour between elements."*1 Johann Döbereiner, a German chemist, was the first to attempt to categorise the elements. He used their atomic weights, which we now know as atomic masses. In 1863, John Newlands, produced something that he called the 'Law of Octaves'....   [tags: Papers] 879 words
(2.5 pages)
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Exploring the Role of Chemists - Exploring the Role of Chemists It was Lavoisier who divided the few elements known in the 1700's into four classes, and then John Dalton made atoms even more convincing, suggesting that the mass of an atom was it's most important property. In the nineteenth century Johann Döbereiner was the first to attempt to classify elements using their relative atomic mass. He also identified a number of ‘triads’ in the list of elements then known. Each triad was a set of 3 elements that have similar properties (e.g....   [tags: Papers] 647 words
(1.8 pages)
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The Uses and Significance of Group Two Compounds - The Uses and Significance of Group Two Compounds The group two elements consist of Beryllium, Magnesium, Calcium, Strontium, Barium and Radium. These are known as the ‘Group Two elements’ because of their unique electron division. Each one of these elements, consists of two outer shell electrons. Because of the lack of outer electrons, these elements are highly reactive. Group two electrons have a positive Two charge or +ve. The Group 2 elements are all metals with a shiny, silvery-white colour....   [tags: Papers] 736 words
(2.1 pages)
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The Content of Two Antacids - The purpose of this experiment is to investigate and compare the basic content of two antacids and also compare the prices and thus decide which antacid is more cost effective. This experiment is not hugely significant to the wider scientific community however it can help an uninformed consumer purchase a more cost effective antacid and understand how antacids work. The method used in this experiment is called a back titration. This involves adding HCl to an antacid tablet until an excess of HCl is reached and then titrating that solution against a 0.1mol NaOH solution....   [tags: Antacids, science experiments, ] 2178 words
(6.2 pages)
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Bases and Alkalis - Bases and Alkalis A base is a compound that reacts with and neutralises an acid. The reaction forms a salt plus water. Alkalis are a type of base - ones that dissolve in water. Alkalis are compounds that react and neutralise acids. Like bases, they form a salt and water in the reaction. Alkalis turn red litmus indicator paper blue and they cause Universal Indicator paper to turn blue or purple. Alkaline solutions have a pH value greater than 7. Alkaline solutions feel soapy and are corrosive....   [tags: Papers] 601 words
(1.7 pages)
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Chemistry study - CHEMISTRY STUDY NOTES: Module 1: The Chemical Earth 1.1 Construct word and balanced formulae equations of chemical reactions as they are encountered. STEPS: 1. General equation 2. Word equation 3. Formula equation 4. Balanced equation 5. Ionic equation Neutralisation: 1. base + acid  salt + water 2. calcium hydroxide (aq) + hydrochloric acid (aq)  calcium chloride + water 3. _____________________________________________________ 4. _____________________________________________________ 5....   [tags: essays research papers] 1587 words
(4.5 pages)
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Resources and Development in an economy - Resources and Development in an economy Resources and Development a) Resources influence the structure and progress of an economy. If something is considered a resource it is potentially of economic benefit. However there are three differing types of resources, and it is the relative abundance of all these that dictates the economic structure. It is debatable whether the presence of one resource, e.g. Coal (a natural resource), leads in itself to economic sustainability and strength. There are human, capital and natural resources....   [tags: Economics] 1849 words
(5.3 pages)
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Critical Analysis of Michael Landy's "Scrapheap Services" Three-Dimensional Sculpture - Michael Landy's "Scrapheap Services" is a 3D sculpture on display in the Tate Modern Gallery. It shows 3 men in boiler suits, their heads bent, as they are intent on their work in the disposing of `people who no longer play a useful role in society'. The room is scattered with little people cut out of discarded material such as aluminium cans, cigarette boxes and fast food wrappers. Uniformed mannequins are in the process of sweeping up the figures, gathering them into bins, and consigning them to a shredding machine called "The Vulture", as vultures clear aware rotten carcasses the machine will do similar....   [tags: Artists] 636 words
(1.8 pages)
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Lithography - Lithography This process uses a flat aluminium printing plate and works on the principle that oil and water do not mix. The image is transferred onto the plate photographically through ultra-violet light shining through a negative. The plate is then washed with a chemical that makes the image area attractive to the oily ink. The non-image area is later dampened with water to repel the ink. To lengthen the life of the printing plate and prevent the paper becoming damp through contact with the water, a rubber blanket transfers the ink from the plate to the paper....   [tags: Papers] 762 words
(2.2 pages)
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Business Plan - Business Plan My group and I are members of a small chemical company that are going in to business to produce Epsom salts. (Information on Epsom salts can be found in 'background information). Our company name is 'The Epsom Company'. In order to be the best company we have to ensure the Epsom salts we produce are a good quality. But despite this we are also looking to make a profit and so cost must be as limited as possible. We will need to pay strict attention to the cost of apparatus and equipment and aim to use a minimum amount of chemicals to produce the maximum amount of Epsom salts....   [tags: Papers] 3608 words
(10.3 pages)
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Volume's Effect on a Copper Sulphate Solution - Volume's Effect on a Copper Sulphate Solution We are trying to find out if the current though a copper sulphate solutions volume is increased. To find this information out I shall perform an experiment using the following equipment; · 1 power pack · 1 beaker · 2 carbon rods for anode and cathode · 1 ammeter · 1 measuring cylinder · 2 crocodile clip wirers I shall also be using 60cm3 volume of copper sulphate in my preliminary results to decide upon the concentration of copper sulphate and the voltage I shall use....   [tags: Papers] 922 words
(2.6 pages)
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Heating and Cooling Investigation - Heating and Cooling Investigation Aim- to find out if different sized cans affect the temperature of 140ml of boiled water, when they are left alone to cool. In this experiment, I will be using two different sized cans (one 12cm tall holding 330ml and another 9cm tall holding 150ml). I will be seeing if each can keeps the boiled water warm for a period of time and testing to find out which one is the best. Fair Test To make this a fair test, I will have to do many things. Firstly, I will use the same amount of water (140ml) at the same temperature, as it will have to start at the same temperature to keep it fair and also have the same amount of water to test on....   [tags: Papers] 541 words
(1.5 pages)
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Enthalpy of Combustion of Alcohols - Enthalpy of Combustion of Alcohols Procedure 1. Put 150³ of cold water in an aluminium calorimeter and record its temperature. 2. Support the calorimeter over a spirit burner containing the ethanol you are going to burn. Arrange a suitable draft exclusion system to reduce heat loss. 3. Weigh the burner and Alcohol. 4. Replace the burner under the calorimeter and light the wick. 5. Stir the water with a thermometer. 6. When the water temperature has risen by between 15 and 20ºC extinguish the burner but continue to stir it until the temperature stops rising....   [tags: Papers] 1428 words
(4.1 pages)
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Investigating the Heat Capacity of Metals - Investigating the Heat Capacity of Metals Aim: My aim is to measure the specific heat capacity of 4 metals and find out if they all have the same specific heat capacity or different. Prediction: The specific heat capacity is the amount of heat energy needed to raise 1kg by 1 C and is measured in joules. My prediction is that the metal with the least massive atoms will heat up more quickly because they require less heat energy to make the molecules move around and heat up....   [tags: Papers] 982 words
(2.8 pages)
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Investigating the Thermal Decomposition Of Metal Carbonates - Investigating the Thermal Decomposition Of Metal Carbonates Aim: To investigate a range of metal carbonates and see if they thermally decompose. Thermal Decomposition INVESTIGATION [IMAGE] ------- Written By Tauqir Sharif ------------------------ Research: When a metal is thermally decomposed the bond between the metal and its carbonate (carbon and oxygen) is removed and the carbonate is released as carbon dioxide. Metal Carbonate = Metal Oxide + Carbon Dioxide Malachite is an ore of copper....   [tags: Papers] 2469 words
(7.1 pages)
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Resistance Investigation - Resistance Investigation Introduction Electricity is something we have all around us every day but we never really think about it, even though it is such an important part of ours life’s. What is electricity. Before investigating the resistance of different metals it is important to understand the principal of electricity. Electricity is formed by the movement or flow of electrons being attracted away from their atoms by an applied force. This is easier to do with the some elements than with others....   [tags: Papers] 2039 words
(5.8 pages)
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Corrosion - 1 INTRODUCTION Corrosion is a natural process, from which a modified material will either break down into a more basic state or be broken down (Gundiler et al, 2000). The process causes undesirable traits in the product which may range from a change in appearance to failure of structures. The effect of corrosion as addressed by Ahmad (2006) costs many billions to governments, as an outcomeindustry has developed many ways to combat corrosion. Combating corrosion can be done though two methods, by design and by inhibition....   [tags: Research Analysis] 1244 words
(3.6 pages)
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Acid Rain - ... But with the advancement of technology almost everyone use a motor vehicle (some use more than one) and obviously the amount of fossil fuels combusted has increased drastically in number which in turn results both in emission and atmospheric precipitation of oxides of sulphur and nitrogen. EFFECTS Acid rain without any doubt can be understood that is harmful to nature and natural resources. Imagine you are walking on the roads on a fine day and suddenly heavy volume of acid falls on your head....   [tags: Environmental Science]
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Japan - Breif History from WWII - Japan - Breif History from WWII INTRODUTION: Without a good history, no nation can ever be considered developed. It is the history that makes or breaks a country. Japans history is very unique. During and after WWII their country was in ruins - literally. All their previous allies had deserted them, they were alone and destroyed by the Americans, an unlikely ally. I will focus on the impacts that America had on Japan, and then how Japan got themselves to the title of "The Second Most Developed Country"....   [tags: Japanese Japan History] 461 words
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Car And Bicycle Brakes - Caliper Brakes Effectiveness: good mechanical advantage as it allows the operator to brake with little effort on the hydraulic lever, which needs to be squeezed. Material: Calipers are fixed mount, opposed piston calipers cast from aluminium alloy. Calipers are the hydraulic clamp portion of the disc braking system. Manufactured from either ferrous or non-ferrous materials and bolted firmly to the suspension upright(or knuckle) the caliper holds the pads in place and, through the action hydraulic pistons actuated by the master cylinder, force them against the rotating surface of the disc when pressure is applied to the brake pedal....   [tags: essays research papers] 377 words
(1.1 pages)
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Scale of Production of Signs - Scale of Production of Signs This sign is an example of a mass produced, cheap manufacturing cost sign. The reason for this sign being cheap to manufacture is that the sign is made out of steel or aluminium and also may have either a reflective vinyl for those used at night. This sign may also have a high-density PVC backing to it as it is a lightweight plastic that can provide a number of colours and is relatively cheap. This sign would need to be mass produced as this sign is very common and not very large....   [tags: Papers] 385 words
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The Success of Directing Roots and Water: Blessing - The Success of Directing Roots and Water: Blessing The film begins with a view of the cracked, red, hard earth. The area is barren, still and quiet. Then a clay pot falls from above, cracking as it meets the ground. This imagery and the sudden harsh sound of the breaking pot help reflect the pain and harsh reality of their situation in the first two lines of the poem, “The skin cracks like a pod. There never is enough water.” The word “cracks” in the poem is onomatopoeia, this sound is then carried through into the film to put forward the same effect which is done successfully....   [tags: Papers] 409 words
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Uses of Nuclear Radiation - Uses of nuclear radiation Smoke Detectors Smoke alarms contain a weak source made of Americium-241.Alpha particles are emitted from here, which ionise the air, so that the air conducts electricity and a small current flows. If smoke enters the alarm, this absorbs the particles, the current reduces, and the alarm sounds. Thickness Control In paper mills, the thickness of the paper can be controlled by measuring how much beta radiation passes through the paper to a Geiger counter. The counter controls the pressure of the rollers to give the correct thickness....   [tags: essays research papers] 456 words
(1.3 pages)
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Designer Charles Eames' Design Icon: The Eames Chair - The Eames chair designed by Charles Eames in 1955. Charles Eames was born in 1907 and dies in 1978, the Eames chair was named after the designer itself it took 80 years for prototype. Eames was best known as the designer responsible for many classic iconic designs of the 20th century, Eames was born in St Louis, Missouri and studied architecture at Washington University, he got married in 1941 and moved to California to set up a ground breaking design studio. The chair was design for exterior use however it became very popular as an office chair....   [tags: home decor, Designer, Charles Eames, Eames Chair, ] 465 words
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The Evolution Of Jet Engines - The Evolution of Jet Engines The jet engine is a complex propulsion device which draws in air by means of an intake, compresses it, heats it by means of an internal combustion engine, which when expelled it turns a turbine to produce thrust, resulting in a force sufficient enough to propell the aircraft in the opposite direction (Morgan 67). When the jet engine was thought of back in the 1920's the world never thought it would become a reality, but by 1941 the first successful jet flight was flown in England....   [tags: essays research papers] 626 words
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Ideas About Religion in Poetry - Ideas About Religion in Poetry Exploring the poems in cluster one I have discovered several references to God and human nature. Through the language displayed and emotions expressed I will now discuss various ideas about religion. The poem "Blessing" expresses the value of water as "the rush of fortune" and "silver crashes". It suggests the greatness of God since he provides water - "the voice of a kindly god". Water is seen to be a gift from God and the poets line, "roar of tongues", reminds us of this as it compares to the bible, "tongues of fire"....   [tags: Papers] 526 words
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Gego - Gego Gego moved on with her works: inventing, letting them grow and helping others, many others, to grow and expand their imagination which is what artwork is all about. Here she anchored her life, and accepted the need to find the meaning of life every day. According to the Chinese proverb: "Today is the future about which we were thinking yesterday." She began in many ways: founded a lamp and furniture manufacturing business, and prepared designs for architects. Finally, she produced work based on the adventure of the line in space....   [tags: Papers] 468 words
(1.3 pages)
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Overcoming Pollution - Overcoming Pollution very efficiently transmitted through the generally stiff, metallic and therefore resonant structures. One common way of overcoming the considerable nuisance this can cause for the occupants is by absorbing the vibration and actually converting it to heat using viscoelastic polymer materials, typically based on polyurethanes or acrylics. Over the past 20 years, Swedish Acoustic Products -- Swedac -- has built a track record in overcoming noise and vibration problems using this basic technology....   [tags: Papers] 472 words
(1.3 pages)
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Investigating Factors that Affect the Rate of Reaction - Investigating Factors that Affect the Rate of Reaction There are certain factors which affect the rates of reaction in an experiment. These factors are: · Pressure · Temperature · Concentration * Surface area / particle size and * The addition of a catalyst The factors that I will be concentrating on are temperature, concentration and surface area / particle size. Pressure Pressure influences the rate of reaction only when the reactants are in their gas phase....   [tags: Papers] 537 words
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Acid Mine Drainage - Acid Mine Drainage For hundreds, even thousands of years, human beings have mined for metals and stones, and with the advent of greater technology as well as greater needs, the demands for these resources continue to grow. While these resources benefit our lives in many ways, the effects of mining can be detrimental, and one such effect is the topic of this essay, acid mine drainage (A.M.D.). The causes of A.M.D. will be discussed, along with some of the physical and biological problems associated with it....   [tags: science]
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In this experiment I am going to investigate how different - In this experiment I am going to investigate how different concentrations of sucrose solution can alter the process of osmosis on a potato chip, and in what way it does this. Osmosis Aim: In this experiment I am going to investigate how different concentrations of sucrose solution can alter the process of osmosis on a potato chip, and in what way it does this. Prediction: I predict that due to osmosis and diffusion when there is a pure water solution the potato chip will swell as it absorbs the water to equalise....   [tags: Bilogy] 907 words
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88 Ways to Know Whether You Are Chinese - 88 Ways to Know Whether You Are Chinese ( BBS µµ°¸) 1. You look like you are 18. 2. You like to eat chicken feet. 3. You suck on fish heads and fish fins. 4. You have a Chinese knick-knack hanging on your rear view mirror. 5. You sing Karaoke. 6. Your house is covered with tile. 7. Your kitchen is covered by a sticky film of grease. 8. Your stove is covered with aluminium foil. 9. You leave the plastic covers on your remote control. 10. You've never kissed your mom or dad. 11. You've never hugged your mom or dad....   [tags: essays research papers] 1049 words
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Destruction of Rain Forest - “In every sense, a standing rain forest supplies more economic wealth than if it were cleared … yet deforestation continues at an alarming rate.” (Tropical Rain Forest Coalition, 1996). Rain Forests have played a significant role in shaping modern biology. The destruction of the rain forests will determine the fate of all species humans plants and animals. Many people do not understand the long- term consequences of losing the earth’s rain forests. They have provided all living beings with many natural resources and medicines....   [tags: essays research papers] 1192 words
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Ducati Strategic Analysis - Ducati Strategic Analysis EXCECUTIVE SUMMARY The economy has changed and we are living in the information era where customers are everyday more and more informed, more sophisticated, and more demanding. Ducati faces a great challenge which is the one to react to fast changes and to select the adequate strategies that will allow it to do so. Through our project we intend to analyse the current trends of the motorcycle industry, where it is heading and what place Ducati occupies in it. Once we understand the whole picture we will go in depth, analysing it and decomposing it into bits and pieces to better understand why it occupies this place, and what strategies it must take to maintain and improve its position and itself as a whole....   [tags: Business Management Strategy Essays Papers]
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Engineering Report - Whipper Snipper/lawn Trimmer - Whipper snipper/ Lawn Trimmer No one person or corporation is attributed with creating the lawn trimmer however the original lawn trimmers where developed from1968 to 1970. Prior to 1970, there were no line trimmers, as we know them today. Can you imagine edging sidewalks, driveways, parking lots and shrub beds with hand-held trimmers. Can you imagine how sore your back, arms and legs would be after a long day of pushing a manual edger along seemingly endless sidewalks and driveways. Can you imagine trimming any turf at all without a powered trimmer....   [tags: essays research papers fc]
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Innovative Waste Disposal - As humanity develops new technology, the magnitude and severity of waste increases. When computers were developed, it widely was believed that the need for paper would be eliminated. On the contrary this was widely proven false and we are now utilizing more paper than ever. Canada is not an exception as the typical Canadian generates an average of three pounds of solid waste each day1. This alone shows what a careless species we have become- using and disposing materials without even considering the damage we are causing....   [tags: essays research papers fc]
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Life Outside Our Biosphere - Life Outside Our Biosphere The fragile balance of the Earth's ecosystem is constantly being disrupted. Overpopulation is placing heavy strain on the world's resources. We are burning all our fossil fuels to create the energy we need, and clearing our rainforests to make enough farmland to feed everyone. The ozone layer is slowly eroding, exposing us to harmful UV light. The room we have on this planet is just enough to provide for our population now. As the population grows, we will find ourselves more and more crowded, with no room left to expand....   [tags: essays research papers] 906 words
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Manufacture In Scotland Today - Contents Contents page Page 1 Introduction Page 2 Electronics Page 3 Semiconductors Page 5 Aerospace Page 6 Automotive Page 7 Conclusion Page 8 References Page 9 “Manufacturing In Scotland Today” Introduction This report is not so much on the state of the manufacturing industry in Scotland but rather of it’s current success....   [tags: essays research papers] 1477 words
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research - History of Computer: -important people Allen, Paul G. - Co-founder of Microsoft Corp. Allen left the company in 1985 but remained on the board of directors and as founded or financially supported several innovative computer ventures, including Asymetrix and Starware Corp. He is involved with a variety of other projects, including a Jimi Hendrix Museum in Seattle. Amdahl, Gene M - South Dakota native who helped design the IBM 704, the S/360 series. He was the founder of the Amdahl Corp. Andreessen, Marc - Co-founder (at the age of 22) of Netscape Communications, along with Silicon Graphics founder James H....   [tags: essays research papers] 1692 words
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Roswell - Roswell Description In the summer of 1947, there were a number of UFO sightings in the United States. Sometime during the first week of July 1947, something crashed near Roswell. W.W. “Mac” Brazel went with his son and neighbours Floyd and Loretta Practor, to check on their sheep after a fierce thunderstorm that had taken place just the night before. As they were walking to where the sheep were they saw pieces of what seemed like metal debris. After a bit more investigating, Brazel saw a shallow trench that was several hundred feet long....   [tags: essays research papers] 711 words
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Impact on the Environment of Electrical and Electronics Products - Impact on the Environment of Electrical and Electronics Products Introduction Electrical and Electronics products are now commonly found all around the world and the number is on the rise. The amount of such products that is being disposed is also on the rise. There is a concern on the environmental effect by such products that is being disposed as well as when it is being manufacturer. This is because most of these products contain either harmful substance or non bio-degradable materials which cause an impact on the environment....   [tags: essays research papers] 5288 words
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Solar Hot Water Systems and Materials of Construction - The materials used in solar hot water systems must be carefully chosen to ensure that the unit will be efficient but also affordable. The efficiency of the conversion of sunlight energy to heat energy of the water depends on the materials of construction and the efficiency of heat transfer of the materials. Solar hot water systems use the processes of conduction to transfer the heat absorbed from the sun to the water and convection to move water through their structure. This assignment discusses the materials used in construction of solar hot water systems and their heat transfer properties....   [tags: essays research papers] 1904 words
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Alzheimer's Disease Speech - Intro:      Hello my name is Nick and I am giving my speech on Alzheimer’s Disease. I was thinking of what I could do for a speech. Then I thought I wanted to inform people on something that little know about. Then it hit me. Alzheimer’s Disease it has affected my life so much and I know so much about it. So I am going to tell you how it has affected my life in more ways than one. Before I start I want you to imagine something. Look around you know everyone right. All these faces you see practically see everyday take all that you know about them and forget it....   [tags: Speech, Public Speaking, Informative Essay] 726 words
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Superconductivity - Superconductivity INTRODUCTION We've all heard about superconductivity. But, do we all know what it is. How it works and what are its uses. To start talking about superconductivity, we must try to understand the how "normal" conductivity works. This will make it much easier to understand how the "super" part functions. In the following paragraphs, I will explain how superconductivity works, some of the current problems and some examples of its uses. CONDUCTIVITY Conductivity is the ability of a substance to carry electricity....   [tags: essays research papers] 1634 words
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The Haber Process - 1. The Haber Process During the first decade of the twentieth century the world-wide demand for ammonia for use in fertilisers (in the form of nitrates) and in the production of explosives for use in mining and warfare could only be satisfied on a large scale from deposits of guano in Chile (2). Though this deposit was of huge size (approximately five feet thick and 385 kilometres long) it represented a rapidly depleting resource when compared to world-wide demand. As a result of this there was much research into how ammonia could be produced from atmospheric nitrogen....   [tags: essays research papers] 1993 words
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The Role Catalysts In Chemical Reactions, Their Importance In Industry - The Role Catalysts In Chemical Reactions, Their Importance In Industry, Problems and New Developments OXFORD AND CAMBRIDGE SCHOOLS EXAMINATION BOARD. General Certificate Examination - Advanced Level Chemistry (Salters') - Paper 3 mock. ROBERT TAYLOR U6JW. A Catalyst is a substance that alters the rate of a reaction. The catalyst remains unchanged at the end of the reaction. The process is called catalysis. In this report I aim going to explain the role of catalysts in chemical reactions and their importance in industry....   [tags: essays research papers] 1029 words
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Assess whether or not the changes in the structure of the UK industry - Assess whether or not the changes in the structure of the UK industry have been beneficial for the economy, industries and the consumer. Over the past 30 years the structure of the UK economy has been transformed. By this I mean there has been changes in the production and employment between the primary, secondary and tertiary sectors. In 1964, 1,201,000 people were employed in the primary sector. By 1995 there were only 383,000 people employed in the primary sector. This shows a decrease of 818,000 employees over 31 years....   [tags: Economics] 793 words
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Comparing Hurricane Hits England and Blessing - Comparing Hurricane Hits England and Blessing The narrator in Hurricane Hits England is Grace Nichols who was born in the Carrribean and the narrator in Blessing is perhaps a person in a country suffering drought, probably in Central Africa. I know this by the way that she describes the conditions “‘silver’ crashes to the ground” and “the sudden rush of fortune” this suggests that water is given value (silver) And she or her friends or family must know and may have experienced these conditions earlier in her life....   [tags: English Literature] 841 words
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Analysing Blessing and An Old Woman` - Analysing Blessing and An Old Woman Poetry from other Cultures Question 2 Culture means the beliefs, traditions, and customs of people within a society. Fundamental aspects of a culture are faith, values, and history. People that share a culture also share its beliefs and ways of life, which are different to others. Poetry is an effective way of describing and exploring a culture, and events within it, because certain aspects can be expressed with vivid descriptions, and imagery that would be unsuitable in other types of text....   [tags: Poetry Imtiaz Dharker Arun Kolatkar Essays] 2077 words
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Crude Oil - Crude Oil Crude oil is a complex mixture of hydrocarbon molecules formed over millions of years when the remains of microscopic sea creatures trapped in sediments were converted by heat and pressure into crude oil. The most abundant of these mixtures are the ones containing hydrogen and carbon only. These hydrocarbons can take on a number of different forms, i.e. alkanes, alkenes and alkynes. They vary in size and shape and viscosity. By manipulating these chains of hydrocarbons you can create any number of useful substances as they are very adaptable....   [tags: Papers] 799 words
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Reaction Between Hydrochloric Acid and Magnesium - Reaction Between Hydrochloric Acid and Magnesium Introduction In the reaction between hydrochloric acid and magnesium, the hydrochloric acid will dissolve the magnesium and produce hydrogen gas. All chemical reactions involve reactants which when mixed may cause a chemical reaction which will make products. In my case the reactants are hydrochloric acid and magnesium ribbon. The chemical reaction takes place when the magnesium ribbon is dropped into the hydrochloric acid....   [tags: Papers] 1914 words
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Manmade and Natural Materials - Manmade and Natural Materials Students like myself need to know what materials are available, how they behave in use and how they can be worked or processed during manufacture and construction. Having a good understanding of these will help me to select suitable materials for my products. In choosing materials for a particular project, I will need to consider their physical and working properties, so that I am able to decide which material is best and which method of processing is required in order to turn raw materials into finished products....   [tags: Papers] 1801 words
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Fluvioglacial Landforms - Fluvioglacial Landforms landforms deposited by meltwater from glaciers. some found within the glacier and some under the glacier. outwash plains- composed of sand, gravel and clay (from snout). deposited during times of inc. ablation (glacial retreat). material is sorted by meltwater at the snout. as it moves away carrying capacity decreases so less is carried. varves- layer if silt on top of sand on top of coarse material. form where there was a glacial lake. as discharge decreases the river can only carry finer material....   [tags: Papers] 692 words
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Preventing Air Pollution - Preventing Air Pollution Air Pollution is a problem nation wide. The pollution hangs over our cities and is harmful and destroys living things and materials. Diesel exhaust is one of the most dangerous sources of air pollution. This type of pollution comes from on road vehicles such as large trucks and buses although factories, construction equipment and farms are big polluters too. Pollution from diesel engines contributes to about 80% of the added cancer risk from toxic air pollution nationwide....   [tags: Environment, Toxic, Ecology Essays] 1203 words
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The Contribution of Bomber Command was Decisive in Bringing About the Defeat of Germany - The Contribution of Bomber Command was Decisive in Bringing About the Defeat of Germany RAF Bomber Command may not have been the most crucial element bringing about the German's defeat, but it did have some small victories which proved to be useful in delaying Germany's advance. Such as dampening the increase of German munitions production, as well as diverting Nazi troops from the Eastern front to man over sixty thousand Anti-aircraft gun placements to protect Berlin from the onslaught of British Bombers....   [tags: Papers] 1165 words
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How Light Affects the Stomatal Opening in a Leaf - How Light Affects the Stomatal Opening in a Leaf Abstract ======== My aim of this investigation was to check the affect of environmental factors affecting stomatal opening. My experiment was designed to check the stomata opening in light. Plants move in ways that may not seem obvious. The opening and closing of stomata is one example of this movement. There are a large amount of growth conditions that can affect a plant. One of the most important of these conditions concerns the type of availability of light present for photosynthesis....   [tags: Papers] 1639 words
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Electrolysis - Electrolysis In chemistry, the production of chemical changes by passing an electric current through a solution or molten salt (the electrolyte), resulting in the migration of ions to the electrodes: positive ions (cations) to the negative electrode (cathode) and negative ions (anions) to the positive electrode (anode). During electrolysis, the ions react with the electrode, either receiving or giving up electrons. The resultant atoms may be liberated as a gas, or deposited as a solid on the electrode, in amounts that are proportional to the amount of current passed, as discovered by English chemist Michael Faraday....   [tags: Papers] 2157 words
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The Electrician's Dilemma - The Electrician's Dilemma An electrician has been asked to repair an old radio. He believes that he needs a resistance of 1.9 ohms which is not easily obtained. You are provided with some reels of resistance wire and are asked to plan and carry out an investigation to help the electrician solve this problem. When your investigation has been concluded you discover that a resistance of 28.5 ohms is also required to complete the repair. Show how you use the data from your investigation to also obtain this resistance....   [tags: Papers] 4006 words
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The Difference in Energy Release of Various Alcohols - The Difference in Energy Release of Various Alcohols In this experiment, I plan to find out the difference in energy release between different sorts of alcohols. To do this I will test how much alcohol is required to increase the temperature of 100ml of water by 30 degrees Celsius. Obviously, many factors may affect my results, therefore making them less reliable. To improve my results, I will carry out some preliminary research to see if I can improve the reliability and accuracy....   [tags: Papers] 805 words
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