Atmospheric electricity

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    Exploring a Childhood Concept - Thunderstorms What scares you? Concepts formed as a child often change as he or she grow into an adult; perhaps the ideas around magic or fairies. Other concepts such as fears are common, but can turn into debilitating fears or even phobias. Treatment for debilitating fears could improve children 's overall mental health, if left untreated they could lead to other disorders, such as anxiety and depression (Dingfelder, 2005). .In this paper, we will explore the concept of thunderstorms formed by a young girl, and how it lingered on until adulthood. She was not able to change this concept developed as a child until she had two young girls of her own, and was faced with a thunderstorm. Thunderstorms As A Child As a young girl growing up in rural northeast Ohio, she can remember the thunderstorms. The loud crashing and booming, the flashes of lightening and torrential downpours. She did not like thunderstorms, they scared her immensely. Her parents would try to sooth her with “everything is okay” “it is just a noise”, but she felt the unease of her parents, and was sure there was something to fear. At night, she would run into their room quite as a mouse, after a long debate with her stuffed animal friends in her room as to which she would take with her and if everyone was sure there was no thunderstorm monster lurking in the hallway. Once she was in her parents’ bedroom, she pulled out the sleeping bag stashed under the bed earlier in the night…

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    Lightening, something that can light up an inky, blue-black night sky in a flash, is one of nature’s most remarkable phenomenon. To the common man, it is impossible that something so deadly, but venomously beautiful, could come from the sky. I have often wondered what causes such a terrifying occurrence, which is why I plan to explain the causes of lightening. Generally produced in thunderstorms, lightening is formed when liquid and ice particles above the freezing level collide. Once the…

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    ALTERNATE ENERGY GENERATION REPORT: SOLAR, HYDROELECTRICITY, WIND The world is constantly revolving around energy, as the population of the earth grows; the demand for electricity significantly increases as well. As society has evolved, technology has also evolved, becoming more focused on luxurious electronic items while also emphasizing a "greener" earth in the form of alternate energy sources. While these alternate energy sources have some obvious benefits, there are also some significant…

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    The wind turbines are used to change the kinetic energy to electrical energy & mechanical power as we all know that but what happens inside of that mechanism is what is important. Most turbines have from 2 to 3 blades and the wind moving over the blades causes them to rotate, as the blades rotate they spin the shaft which is connected to the electrical generator. Turbines are complicated machines that includes sophisticated gearboxes for increasing the spinning shaft speed from 30 to 60 (rpm)…

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    Da Vinci Vs Thomas Edison

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    Who was a better inventor LeoNardo DA Vinci or Thomas Edison? It has been long debated on who was a better inventor, Leonardo DA Vinci or Thomas Edison? Thomas Edison might have been a leading inventor in his time, because he created the light bulb but that was really his main achievement. Leonardo DA Vinci was better because he had more inventions, better known for his work, and he was specialized in many lines of inventing. Now you really need to think Thomas Edison was responsible for…

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    “Thousands of workers from China helped build America’s Transcontinental Railroad” (Lewis). Kenneth Oppel and Kristin Lewis are both authors of two great stories with different aspects of America’s Transcontinental Railroad. Kenneth Oppel is the author of “The Ghost Boy”, a story about a fourteen year old boy named Luke is traveling on a train with his father. He happens to stumble upon a ghost; a victim to the making of the Transcontinental Railroad. Kristen Lewis is the author of an…

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    Introduction “What one man calls God, another calls the laws of physics.” [1]. Nikola Tesla was born in the industrial age under the Austrian empire on 10th July 1856. Being raised with advance knowledge of engineering and science, Tesla started his career with the emerging electric power industry in the early 1880’s for whom he worked for until the late 1880’s. His first significant achievement happens with AC or Alternating Current. He has owned the patents for the Alternating Current…

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    MOSFET Case Study

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    In 1959, metal–oxide–semiconductor field-effect transistor (MOSFET) was invented by Dawon Kahng and Martin M. (John) Atalla at Bell Labs. Julius Edgar Lilienfeld had already patented the basic principle of this kind of transistor in 1925. But later the Bell Labs edition was allocated the name bipolar junction transistor, or merely junction transistor, and design of Lilienfeld came to be identified as field effect transistor. Later, Jean Hoerni found that Silicon dioxide (SiO2) should be used to…

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    gradually wore off.) Franklin spent the summer of 1747 conducting experiments and recording his findings and ideas in letters sent to Peter Collinson, a colleague and friend to Franklin located in London, who was interested in publishing Franklin’s work. Through his findings, Ben was soon referring to lightning through the terms positive and negative, such as one would describe electricity. Franklin soon discovered the similarities between lightning and electricity. He noted properties such as…

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    Simulink Case Study

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    4.1.4 Development of Feed Forward Control model in Simulink To implement feed forward control. Firstly, the transfer function of the linear DC Motor model has to be obtained. Actually in our case, the input of the plant is current so the transfer function of the mathematical model in ratio of angular velocity to current has to be obtained. It is given by: G(s)=Ω_1/I_a =R_A/K_M 1/(T_e s+1) where T_e=(J_meq R_A)/(K_m Cϕ) is electro-mechanical time constant. The feed forward control could be…

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