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Industial_Revolution

2013-11-13 来源: 类别: 更多范文

Industial Revolution Electricity, Steel and Oil The three major improvements of the second Industrial Revolution were in the areas of energy and metal. It was based on oil, steel and electricity rather than coal and iron. The use of new materials made the second Industrial Revolution increase in size and technology, and mature more.ElectricityThe first dynamo, or electric generator, was developed in 1831. Its first applications were in communications. In 1837, two Englishmen had sent the first electric signals over a wire. In the 1870s, electricity was used to make the first electric motor, which would quickly replace the steam engine in industry. Electric motors were smaller, cleaner and cheaper than steam engines, and consequently they spread the Industrial Revolution throughout the manufacturing sector. The new motors could be used for many more things than steam - such as sewing machines and fans - and also light bulbs, which were invented in 1879 by Thomas Edison.Communications RevolutionAfter the first signal was sent over a wire, it was clear that electricity would produce a much better system of communication than ever before. The signals sent over a wire were developed into the telegraph, which the American Samuel Morse improved. Before long, Morse code, developed industrial, revolution, new, first, iron, industry, both, steel, people, class, world, steam, scientific, developed, corporations, change, being, 1800s, steamships, over, made, invented, electricity, writers, time, social, signals, sent, second, realism, railroads, production, natural, middle, make, industrialized
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