How A Steel Mill Works The principal consumables employed in steel production are iron ore‚ coal‚ scrap metal and electrical energy. The importance of each of these consumables depends upon the technological processes adopted at each mill. In a classic integrated mill‚ coal and iron ore are the main consumables. In semi-integrated mills‚ scrap iron is the mainstay. An integrated mill comprises four basic operations – reduction‚ refining‚ solidification‚ and rolling – to convert iron ore
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1.When and where did Durer work? Dura worked during the middle ages‚ and lived in Nuremberg during what we know recognize as its golden age. 2.Who and what was an influence on his artwork? In 1494‚ Durer traveled to Italy to study art‚ Durer was heavily influenced by the Italians‚ and one writer in particular: Vitruvius. Durer was most interested in their efforts to find the mathematical proportions for portraying the perfect figure. One artist Durer drew inspiration from in particular while
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How a Pogo Stick Works The pogo stick is a mechanical device that utilizes the spring’s ability to store energy. In this paper I will explain how the toy uses the laws of physics to provide hours of fun. There are a lot of forces acting on you and the pogo stick as you bounce along. We’ll take an in depth look at all of these forces and what part they play in the overall functioning of pogo sticks. The physical aspects can be broken down into sections to get a better understanding of what is going
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Files and Relational Databases What is a file? • contains groups of records used to provide information for operations‚ planning‚ management and decision making. • can be used for storing data for an indefinite period of time‚ or they can be used to store data temporarily for a specific purpose. FILE TYPES • Master Files -- contain records for a group of entities. The attributes may be updated often‚ but the records themselves are relatively permanent. These files
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File Storage and Retrieval Information stored in a mass storage system is conceptually grouped into large units called files. A typical file may consist of a complete text document‚ a photograph‚ a program‚ a music recording‚ or a collection of data about the employees in a company. Mass storage devices dictate that these files be stored and retrieved in smaller‚ multiple byte units. For example‚ a file stored on a magnetic disk must be manipulated by sectors‚ each of which is a fixed predetermined
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Health and Safety How to work safely at a computer All jobs have elements of risks to your health. Some maybe more than others. Even working at a computer poses a risk on your health and well-being. The risk? Upper limb disorders (ULD’s) or repetitive strain injuries (RSI’s) Now in order to reduce the risk of suffering from these problems‚ it is essential to understand how you get them in the first place. ULD’s normally occur when you have a job which requires a lot of twisting
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How To Work Your GPS Unit Jessica R. London Colorado Technical University Online How To Work Your GPS Unit Before we place your unit on you‚ we will go over how to charge it and listen to messages. Your unit does have to be charged at least two hours a day. You can charge it an hour in the morning an hour at night. You can break it up into 30 minute intervals‚ as long as you charge it a minimum of two hours a day. You can never overcharge just don’t undercharge it. First‚ you are going to
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Marquee A. Villanueva How a Fax Machine Works It is very typical and practical in an office to have a fax machine. Every time you walk in to an office‚ you may see one of these machines but have you ever wondered how they work? Have you ever thought‚ how can a machine transfer information from one phone to another without really sending the original document? Some people might think it’s magic but it is actually not. It is science in use‚ technology. All of this may sound to high-tech
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HOW AN ELECTRIC GENERATOR WORKS Electrical generators by definition are devices that convert mechanical energy into electric energy. The mechanical energy in turn is produced from chemical or nuclear energy in various types of fuel‚ or obtained from renewable sources such as wind or falling water. Steam turbines‚ internal-combustion engines‚ gas combustion turbines‚ electric motors‚ water and wind turbines are the common methods to supply the mechanical energy for such devices. Generators
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was supposed to happen. Theoretically‚ the tap water would work the fastest because there was no environmental factors affecting the outcome. As the temperature of the hydrochloric acid was raised‚ the enzyme’s speed should have slowed. In the results‚ the ice water worked the fastest and the 50° of HCL was the slowest. But the result of the 38°C was off by at least 90 ml/min in comparison to the tap water when it was supposed to work slower. These results could have been from many different
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