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As early as junior high school, I knew that the father of the steam engine --- Watt, but I didn't know that Watt improved the steam engine in Birmingham. This kind of cross-era revolution has enabled us human beings to enter the era of using machinery, and the productive forces have been greatly strengthened, and this revolution has made the human productive forces develop rapidly. It was a pleasure to come to England and see Watt's hometown, and I came to Birmingham to see Watt's statue.
People say there is a statue of Watt here, and the British commemorate the great scientist of the Sakura Collapse, a civilian scientist.
Watt's story is known to Chinese, and the teacher told us that Watt saw the steam open the lid of the kettle, and constantly thought about the role of steam in his growth, so he invented the steam engine. Is such a story true? In fact, Watt only improved the steam engine on the basis of Newkman's steam engine, of course, Watt's improvement was a revolutionary change, and it was the first time in human history that the reciprocating linear motion of the machine was turned into a rotary motion, making the steam engine a machine of practical value.
Watt's revolutionary improvements brought the world into the age of the steam engine, which led to the industrial revolution in Britain. Britain has since become a world power. This kind of revolution should be very inconspicuous now, and the piston chamber is only separated from the cooling chamber, which improves the thermal efficiency of the machine.
So, people put Watt's steam engine on horse-drawn carriages, wooden boats, and looms, so the steam locomotive, steam turbine, steam engine for production, and so on were invented. Thus, the internal combustion engine, which is today's automobile engine, was born.
Watt is such an epoch-making figure, of course, to look at his image. When we came to the door of the Birmingham Library, Watt and the chemist Pristley stood side by side, Watt's statue was so high that it was impossible to see his face clearly, and the great man --- we should look up to show our reverence. I came back and saw Watt's portrait from the ** on the Internet, Watt's portrait probably reflects his real face, his face looks wise and quiet, he doesn't look like a worker, but Watt's real identity is an instrument repairman in the university.
Watt --- an instrument repairman, and for such a great thing, he stands on the monument of Britain's history for good reason.
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Watt was born in Greenock, England, and had no chance to go to school because of his family's poverty, so he first worked as an apprentice in a watch shop and then as an instrument repairman at the University of Glasgow.
In 1764, the University of Glasgow received a Newcoman steam engine that needed to be repaired, and the task was given to Watt. When Watt had repaired it, he saw how hard he worked, like an old man panting and trembling with his weight on his shoulder, and felt that it should be improved.
He noticed that the main problem was that the cylinder was hot and cold every time it was steamed, and it was cold and hot, and a lot of heat was wasted. Can you keep it cold and the piston working as usual? So he rented a cellar at his own expense, collected a few scrapped steam engines, and was determined to build a new machine.
Since then, Watt has been fiddling with these machines all day long, and two years later, he finally has a new one. But after a trial of ignition, the cylinder leaked everywhere, and Watt tried his best to wrap it in felt and wrap it in oilcloth, and after several months, it still could not cure this problem.
One day he went to the cylinder again to observe the cause of the air leak, and accidentally a hot air rushed out, and he hurriedly dodged, and his right shoulder was already red and swollen, as if he had been cut by a hot knife, and it hurt so badly that he was upset. He was really a little discouraged, and at this time, it was his wife who gave him courage, and her wife used the method of agitation to arouse the ambition to continue his research.
He went back to the underground laboratory, re-read the past materials, cheered up and worked again, and when he was tired, he kept the stove boiling a pot of water and drinking tea. One day, while drinking tea, he looked at the moving lid of the pot. He looked at the pot on the stove and then at the cup in his hand, and suddenly an inspiration came:
The tea should be cold and poured into a cup; If the steam is going to be cold, why not also "pour" it out of the cylinder?
With this in mind, Watt immediately designed a condenser that was separate from the cylinder, which tripled the thermal efficiency and used only a quarter of the original coal. As soon as this key place was broken, Watt suddenly felt that the future was bright. He went to the university to ask Professor Black some theoretical questions, and the professor introduced him to Wilkin Technician, who invented the boring machine, and this technician immediately used the method of boring barrels to make cylinders and pistons, and solved the most troublesome problem of air leakage.
In 1784, Watt's steam engine was equipped with crankshafts and flywheels, and the pistons could be continuously pushed by steam coming in from both sides, and there was no need for manual adjustment of the valves, and the world's first real steam engine was born.
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The encyclopedia makes it very clear, so go check it out.
1. Watt invented the steam engine
Watt once saw the boiling water on the stove when he was a child, and the steam pushed the lid of the kettle open, and Watt put the lid back but it was quickly opened again. Watt kept putting the lid around trying to find out why, and later Watt realized that it was the power of steam, which sparked his interest in steam and led to the invention of the steam engine. >>>More
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