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History of the electricity essay 2 pages
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History of the electricity essay 2 pages
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Electricity is a necessity in our lives. Many people can’t function daily without it. Everything in a home functions primarily with electricity. It takes great precision and a lot of around the clock work to insure power is available for use. The process of producing electricity is taken for granted by most people because it seems to always be readily available. No one truly appreciates the need for electricity until the power goes out. Many years ago, food was kept cool in ice boxes, houses were kept warm by using wood burning ovens, and were lit by using kerosene lamps. Thanks to the development of electricity, advances in technology have evolved. Without electricity, it would be hard to produce the voltage and amperage necessary to produce high quality radiographs. Although electricity maybe the main contributor to x-ray production, transformers and rectifiers are also of great importance. Electricity has paved the way for advances in the medical field.
The Production of Electricity
All matter is made up of atoms, which are made of even smaller subatomic particles. These subatomic particles are referred to as protons, neutrons, and electrons. Electrons orbit the nucleus which is made up of protons and neutrons. If enough energy is added to an electron, it will move out of its orbit and into the next shell. Valence electrons don’t have a shell to enter, so it will jump to another atom . Electrons flow and move around in some materials known as conductors. Protons are not capable of this because they are heavier than electrons. Conductors include, aluminum, silver, copper and gold. Copper is mainly used because of its conducting abilities and because there is a large quantity of it ( Killinger & Killinger, 2003).
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...ed if the current was alternating ( Bushong, 2008). Transformers are necessary to supply a high voltage to the
anode portion of the x-ray tube. Power is only available at 110 or 220 volts. Necessary voltage for the x-ray tube is kilovolts. The two types of transformers used in x-ray production are step-up and step-down transformers. (NDT resource center).
References
Bushong, S.C. (2008). Radiologic Science for Technologists: Physics, biology, and protection. St. Louis, MO: Elsevier.
Killinger, J., & Killinger, L. (2003). Heating and Cooling Essentials. Tinley Park, IL: The Goodheart- Wilcox Company, Inc.
NDT Resource Center (n.d.). X-ray Generators. Retrieved from http://www.ndt- ed.org/EducationResources/HighSchool/Radiography/xraygenerators.htm
Solcomhouse (n.d.). Electricity. Retrieved from http://www.solcomhouse.com/ electricity.htm
In the article,"Energy Story", it tells you all about basic energy and how scientists found out how it works. It tells you about each part of an electron and what part is what. The center is called the Nucleus. Electrons and atoms move together to create what is known as electricity. Atoms and electrons flow through an object
All of the sources of current to the equipment should be isolated and signs need to be fixed to ensure that the nature of the equipment is known
...ending on the size and tolerances of the patients, the voltages could have ranged anywhere form 70 to 130 volts. As a direct effect from the large amounts of electricity being imposed into the patient’s body they will lose consciousness almost immediately. The shocks sent them in to convulsions or seizures and therefore increased their insulin levels. After a patient regains consciousness, he or she will not remember any of the events of being shocked. (Noyes and Kolb).
This type of execution was invented by employees of Thomas Edison during the War of the Currents that occurred in the US. It was designed by inventor and steamboat engineer, Dr. Alfred P. Southwick and built by Harold P. Brown who was an electrical engineer. The process of execution involves the convict being strapped down to a chair with leather belts before being electrocuted by a minimum of two jolts of electricity about 500 - 2000V that lasted about 30 seconds each. A public demonstration was held to determine the type of current to be used. Direct current (DC) was chosen instead of alternating current (AC) as direct current does not instantly kill the convict.
An atom, by definition, is the smallest part of any substance. The atom has three main components that make it up: protons, neutrons, and electrons. The protons and neutrons are within the nucleus in the center of the atom. The electrons revolve around the nucleus in many orbitals. These orbitals consist of many different shapes, including circular, spiral, and many others. Protons are positively charged and electrons are negatively charged. Protons and electrons both have charge of equal magnitude (i.e. 1.602x10-19 coulombs). Neutrons have a neutral charge, and they, along with protons, are the majority of mass in an atom. Electron mass, though, is negligible. When an atom has a neutral charge, it is stable.
“Electricity is considered a very efficient way of energy consumption in part because it is weightless as well as easy to distribute. Electricity is used without creating loss and without creating pollution. Other forms of energy experience loss, pollution or both, such as fossil fuels. At the point where electricity generates, it is a renewable form of energy as well as a clean one. Without electricity, humans would be able to enjoy next to no modern conveniences” (Iec.ch). Electricity is a clean, efficient and renewable source of energy and without the invention of it who knows how bad our environment would would be. Lastly is the innovation of the Telephone. Do you like sending letters? Chances are you don’t and you have the telephone to thank for that. Now instead of sending a letter, and waiting for them to respond a two months later you can just call them. “The telephone supports business operation, socialization and global interaction by offering a way for business to communicate without delays between messages. The invention of the telephone offered an instantaneous form of communication that spawned other valuable communication tools, such as the Internet and cellular phones.
Apart of becoming a new patient at a dental office is taking an x-ray and some may have question along with taking an x-ray, like “will I be affected by the x-ray?” or “will I get cancer?”, “how long will it take” “are x-ray’s safe?”, the list goes on and on. So in this paper we will talk about different types of radiation affects such as affects on children and pregnant women as well as some things that may help reduce some of the radiation that may harm the human body.
As our population increases, so will our demand for electricity. Air conditioners, computers, televisions, microwaves, and many other appliances have become necessities for Americans. All methods of producing electricity have drawbacks. As the earth becomes warmer, we must look for ways to decrease our use of fossil fuels. There are several ways to produce electricity without releasing air pollution. The most feasible method at this time is nuclear energy. Nuclear energy presents a safe, clean, and inexpensive alternative to other methods of producing electricity. Nuclear waste can either be reprocessed or disposed of safely, provided certain precautions are taken.
During the very early years of Nikola Tesla’s and Thomas Edison’s careers, they had very different views on the use of electricity. Thomas Edison pursued the use of direct current (DC); however, this particular use of electricity was limited to a distance of a couple miles. Whereas, Tesla argued that alternating current (AC) power was more efficient and practical for everyday use. According to the article "Tesla, Nikola. The American Heritage Student Science Dictionary," Tesla’s use of “The alternating current (AC) system Tesla developed could be transmitted over long distances at high voltages by using transformers, and it was cheaper and easier to maintain than the DC system” (par 1). This difference in views caused Tesla to leave the employment of Edison and join up with George Westinghouse’s electrical company. After leaving Edison’s company, Tesla provided many advancements for his new employer, which ultimately led up to the invention of the electric chair for state
Hirsch, Sven, and Cornelia Daheim. "The Meaning Of Clean Electricity." World Future Review (World Future Society) 4.2 (2012): 96-101. Academic Search Complete. Web. 6 Feb. 2014.
The atom is made up of mostly empty space, but it still has many parts (Doc. 2). At the center is a positively charged ball of mass called the nucleus. Inside the nucleus are protons and neutrons. Protons are positively charged particles, and neutrons are particles with no charge (Doc. 3). The nucleus is surrounded by a cloud full of electrons (Doc. 3). Electrons are negatively charged particles (Doc. 3). They move around the nucleus in discrete regions called energy levels (OI). Protons and neutrons can be broken down into quarks
In order to decide upon the voltage and lengths of wire to use in the
In the 19th century was when electricity really started and became a widespread of innovations (A,93). During 1967, the law required master electricians to be licensed and have insurance (E). Unbelievably, there is electricity within our body using the nerve ...
understanding of these occurring problem, only then we can be said to be ready for the electric
The effects of electricity control much of our daily lives. Many of our gadgets and everyday tasks are run by this wonderful source of power. For example without electricity we would not be able to make a cup of coffee in the mourning, or even make a long distance call to family or friends. There have been several technological breakthroughs by many brilliant people throughout history regarding electricity. It has come from being discovered as a small current to being transformed into useful power to run such things as computers. Ben Franklin, Guglielmo Marconi, Thomas Edison, Paul Nipkow, and Charles Babbage have all contributed to the advancement of electricity, and all of their advancements have supplied society in many ways.