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Free research essays on topics related to: electrical

164 results found, view free essays on page:

  • Aluminum Foil Magnetic Force
    1,253 words
    Summary of Investigation An investigation was carried out to find out the relationship between the force created in a wire (or solenoid) when current flowed through it and the force from gravity. This was investigated by connecting a solenoid up to a variable power pack and then placing a light ring of either copper or aluminum around the solenoid. When the current flows through the solenoid, a magnetic force created from the solenoid should make the ring 'jump' up or levitate. When carrying out...
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  • Amount Of Information Electrical Activity
    1,431 words
    ... s theory fit with the hard facts? Dreaming (D-state or D-activity) is associated with a special movement of the eyes, under the closed eyelids, called Rapid Eye Movement (REM). It is also associated with changes in the pattern of electrical activity of the brain (EEG). A dreaming person has the pattern of someone who is wide awake and alert. This seems to sit well with a theory of dreams as active therapists, engaged in the arduous task of incorporating new (often contradictory and incompati...
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  • Quantum Mechanics Truth Value
    1,656 words
    ter>Sam Vaknin's Psychology, Philosophy, Economics and Foreign Affairs Web Sites In 1936 an American (Alonzo Church) and a Briton (Alan M. Turing) published independently (as is often the coincidence in science) the basics of a new branch in Mathematics (and logic): computability or recursive functions (later to be developed into Automata Theory). The authors confined themselves to dealing with computations which involved effective or mechanical methods for finding...
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  • The Secret Life Of Great White Sharks
    1,139 words
    Great White Sharks are greatly misinterpreted as vicious man-eaters because of the media, movies, and peoples imaginations, but they are actually large fish who mistake people for seals and other marine life. What is a great white shark? The great white, among the least understood of Earths creatures, is an apex predator, meaning that it is at the top of the food chain with no natural predators. This means great whites have their pick of food when it comes to selecting their prey (Klimley 15). C...
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  • The Time Machine Compared To Nineteen Eighty Four
    1,512 words
    The Time Machine by H. G. Wells and Nineteen Eighty Four are two excellent science-fiction novels which explore and give to different views of the future. Both of the Novels look at the future in different ways because of different social attitudes and structures but both still have the same view of human nature and what it may lead to. Written and based in the nineteenth century, The Time Machine explores the Fourth Dimension of space. The protagonist, who is referred to as The Time Traveller b...
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  • Electrical Impulses Mental Phenomena
    663 words
    Human beings have a conception of at least two different kinds of things that exist in the world, mental and physical. Any of us could generate a long list of obvious physical things and clear cases of psychological things. And we assume that both of these types of things, mental phenomena and physical phenomena, are part of our world. But in order to get a more unified, overall picture of the world, we need to consider what the connection is between these two categories. How are the mental and ...
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  • Gel Electrophoresis Chain Reaction
    892 words
    Huntington Disease, (HD), is a hereditary degenerative brain disease. Usually begining in mid-life, cells in the caudate nucleus of the brain begin to die, causing a relentless deterioration of intellectual ability, emotional control, motor skills, balance and speech. Chorea, or involuntary movements, is nearly always a symptom as well. HD is caused by a single dominant gene. Every child of an affected parent has a 50 % chance of inheriting the gene that causes HD. The HD gene is found on chromo...
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  • Determining Ph Of Identical Strong And Weak Solutions
    844 words
    Experiment: Determining pH of identical strong and weak solutions Date: 31 / 10 / 03 Aim: Plan and perform a first-hand investigation to measure the pH of identical concentrations of strong and weak acids. Equipment: Deionised water (H 2 O) Tartaric Acid (C 4 H 6 O 6) Citric Acid (C 6 H 8 O 7) Sulfuric Acid (H 2 SO 4) Acetic Acid (CH 3 COOH) Hydrochloric Acid (HCl) Ammonium Chloride (NH 4 Cl) Tap Water (H 2 O) Nitric Acid (HNO 3) Probe Ferric chloride (Fe Cl 3) Wash bottle Sodium Chloride in tap...
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  • Hydrogen And Oxygen Combustion Engines
    1,015 words
    Hard to believe that the simplest atom in the universe is used in the making of the most destructive weapon known to man isnt it? Well so is the fact that it will soon (we hope) become the replacement for petroleum-based fuels, and just about every other form of fuel too. One electron orbiting one proton is all that hydrogen is, and it is mankind's future. It is easy to manufacture, (although the government says otherwise, ) safe and easy to store, and has only one by-product water. The way that...
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  • Computer Chips Silicon Web
    339 words
    Silicon is a semiconductor which means it's a "substance whose electrical conductivity is intermediate between that of a metal and an insulator; it increases with temperature and in the presence of impurities. " The conductivity of silicon can be controlled by adding small amounts of impurities, called departs. This ability to control the electrical properties of silicon have the development of transistors and integrated circuits used in the electronic industry. "Silicon is prepared as a brown a...
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  • Parts Of The Body Fertilized Ovum
    955 words
    The theory of being able to make a genetic copy (a clone) of another animal has been around for quite a while. But animal cloning has been a scientific breakthrough only in recent years. Through cloning and genetic engineering, scientists have been able to perform incredible medical procedures that could one day help diseased people all over the world. There are many steps involved in cloning, and many precautions must be used. Scientists have found many useful benefits to animal cloning in many...
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  • Lead Acid Battery Potassium Hydroxide
    787 words
    There are many kinds of batteries which consist of different materials in order to produce an electric charge. Here are some of the most common batteries, what they consist of and how they work. Bichromate Cell (see picture # 1) A battery is a device which converts chemical energy into electrical energy. A battery usually consists of two or more cells connected in series or parallel, you can also have a single cell battery. All cells consist of a positive electrode, and a negative electrode. An ...
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  • 20 Th Century Vacuum Tubes
    1,004 words
    Military equipment, toys, communication, home electronics, computing, cars, satellites and others. This is only a partial list of products, which contain electronics. Actually electronics won our world. We wake up with the ring of electronic clock, drink coffee from a electronic coffee machine, work with computers, learn by using video conferences, listen to the music from a sound system and go to sleep while adjusting our electronic watch for tomorrow morning. It is hard even to think that only...
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  • N Type Silicon Crystal Of Silicon Resist
    638 words
    Inside every modern computer or other data-processing wonder is a microprocessor bearing millions of transistors sculpted from silicon y chemicals and light. Silicon, the second most abundant element on Earth, is used extensively in transistors, integrated circuits, photoelectric devices, and other electronic devices. A pure crystal of silicon does not conduct electricity unless traces of other substances are diffused or doped onto it. Therefore silicon must be manufactured in a specific way in ...
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  • Ben Jonson As A Lover
    967 words
    Ben Jonson as a Lover Poetry of Ben Jonson describes him as a renaissance man, in the full sense of this word. This is because he was able to integrate into his verses his love of sensual pleasures, his idealism, and his philosophical aspirations. Just as any educated person in England, at the time, Jonson was being heavily influenced by the notions ancient Greek and Roman culture. This explains epicurean attitudes, which are often found in Jonson's poems. At the same time, Jonson was a man of h...
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  • Scientific Theories Objective Reality
    1,758 words
    Magic and Science: A Natural Philosophy of the World (1) Nowadays, the scientific progress has reached such an extent that magical concepts are being increasingly integrated into scientific theories, even though that as recent as hundred years ago, people considered science and magic as diametrically opposite, in their essence. The scientific process is based on the principle of gaining new knowledge. Formula experiment-theory-practice can be equally applied to just about any scientific discipli...
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  • Majority Of People Wal Mart
    1,790 words
    ... much from life as possible is absolutely justified, because we only live once. Thus, we can think of consumer culture as descendant of Renaissance values, which were materialist in their essence. People have always existed as consumers, throughout the history; therefore, being a part of consumer culture is absolutely natural to them. Consumer culture provides people with a choice, when it comes to selecting products. In Communist countries, consumerism has always been referred to as somethin...
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  • Industrial Engineering Technicians Industrial Engineering Technologist Work
    1,135 words
    Industrial Engineering Technicians Marc You For the subject of my research paper I chose the occupation of Industrial Engineering Technology. This job is very similar to one I might have since my major might be Industrial Technology. The industrial field is one that I am very interested in and offers many different jobs to choose from. A few of the jobs included in the industrial field are; Industrial Engineer, Mechanical Engineer, Industrial Distributor (sales), and various management positions...
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  • Valence Electrons Electric Field
    1,130 words
    Solar cells today are mostly made of silicon, one of the most common elements on Earth. The crystalline silicon solar cell was one of the first types to be developed and it is still the most common type in use today. They do not pollute the atmosphere and they leave behind no harmful waste products. Photovoltaic cells work effectively even in cloudy weather and unlike solar heaters, are more efficient at low temperatures. They do their job silently and there are no moving parts to wear out. It i...
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  • Valence Electrons Solar Cells
    1,194 words
    Solar Energy Solar cells today are mostly made of silicon, one of the most common elements on Earth. The crystalline silicon solar cell was one of the first types to be developed and it is still the most common type in use today. They do not pollute the atmosphere and they leave behind no harmful waste products. Photovoltaic cells work effectively even in cloudy weather and unlike solar heaters, are more efficient at low temperatures. They do their job silently and there are no moving parts to w...
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