The History of Electricity Here is some information on the book, Electrical History by Tom Henry. This book was written in appreciation of the more than 15 million men and women that work in the electrical industry to keep the lights burning every second, every minute, 24 hours a day, everyday. Did Edison invent the light bulb, Marconi the radio, Bell the telephone, Morse the telegraph? The answers are no. They didnt invent the wheel. They were instrumental in making it better and, in some cases, obtaining the patent. Electrical history goes back before Christ and brings us to the computer age. Along this journey you will discover it took several people, along the way, to make the light bulb glow. The journey wont end with this book, as we are constantly discovering new inventions that will someday even take us to the stars. Benjamin Franklin (1706-1790) His kite experiment demonstrated that lightning is electricity. He was the first to use the terms positive and negative charge. Franklin was one of seventeen children. He quit school at age ten to become a printer. His life is the classic story of a self-made man achieving wealth and fame through determination and intelligence. James Watt (1736-1819) was born in Scotland. Although he conducted no electrical experiments, he must not be overlooked. He was an instrument maker by trade and set up a repair shop in Glasgow in 1757. Watt thought that the steam engine would replace animal power, where the number of horses replaced seemed an obvious way to measure the charge for performance. Interestingly, Watt measured the rate of work exerted by a horse drawing rubbish up an old mine shaft and found it amounted to about 22,000 ft-lbs per minute. He added a margin of 50% arriving at 33,000 ft-lbs. William Thomson, Lord Kelvin (1824-1907) was best known in his invention of a new temperature scale based on the concept of an absolute zero of temperature at -273°C (-460°F). To the end of his life, Thomson maintained fierce opposition to the idea that energy emitted by radioactivity came from within the atom. One of the greatest scientific discoveries of the 19th century, Thomson died opposing one of the most vital innovations in the history of science. Thomas Seebeck (1770-1831) a German physicist was the discoverer of the Seebeck effect. He twisted two wires made of different metals and heated a junction where the two wires met. He produced a small current. The current is the result of a flow of heat from the hot to the cold junction. This is called thermoelectricity. Thermo is a Greek word meaning heat. Michael Faraday (1791-1867) an Englishman, made one of the most significant discoveries in the history of electricity: Electromagnetic induction. His pioneering work dealt with how electric currents work. Many inventions would come from his experiments, but they would come fifty to one hundred years later. Failures never discouraged Faraday. He would say; the failures are just as important as the successes. He felt failures also teach. The farad, the unit of capacitance is named in the honor of Michael Faraday. James Maxwell (1831-1879) a Scottish mathematician translated Faradays theories into mathematical expressions. Maxwell was one of the finest mathematicians in history. A maxwell is the electromagnetic unit of magnetic flux, named in his honor. Today he is widely regarded as secondary only to Isaac Newton and Albert Einstein in the world of science. Thomas Alva Edison (1847-1931) was one of the most well known inventors of all time with 1093 patents. Self-educated, Edison was interested in chemistry and electronics.During the whole of his life, Edison received only three months of formal schooling, and was dismissed from school as being retarded, though in fact a childhood attack of scarlet fever had left him partially deaf. Nikola Tesla was born of Serbian parents July 10, 1856 and died a broke and lonely man in New York City January 7, 1943. He envisioned a world without poles and power lines. Referred to as the greatest inventive genius of all time. Teslas system triumphed to make possible the first large-scale harnessing of Niagara Falls with the first hydroelectric plant in the United States in 1886. October 1893 George Westinghouse (1846-1914)was awarded the contract to build the first generators at Niagara Falls. He used his money to buy up patents in the electric field. One of the inventions he bought was the transformer from William Stanley. Westinghouse invented the air brake system to stop trains, the first of more than one hundred patents he would receive in this area alone. He soon founded the Westinghouse Air Brake Company in 1869.
Posted on: Sat, 09 Aug 2014 17:55:46 +0000
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