ប្រាសាទអង្គរវត្ត

ប្រាសាទអង្គរវត្ត
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Friday, January 24, 2014

George Stephenson, the first man invented train

George Stephenson, who was the first man invented train operated by steam engine,  the son of a colliery fireman, was born on 9th June, 1781, at Wylam, eight miles from Newcastle-upon-Tyne. The cottage where the Stephenson family lived was next to the Wylam Wagonway, and George grew up with a keen interest in machines. George's first employment was herding cows but when he was fourteen he joined his father at the Dewley Colliery. George was an ambitious boy and at the age of eighteen he began attending evening classes where he learnt to read and write.
In 1802 Stephenson became a colliery engineman. Later that year he married Frances Henderson, a servant at a local farm. To earn extra money, in the evenings, he repaired clocks and watches. On 16th October, 1803, his only son, Robert was born. Frances suffered from poor health and she died of consumption in 1806.
When he was twenty-seven, Stephenson found employment as an engineman at Killingworth Colliery. Every Saturday he took the engines to pieces in order to understand how they were constructed. This included machines made by Thomas Newcomen and James Watt. By 1812 Stephenson's knowledge of engines resulted in him being employed as the colliery's enginewright.
Working at a colliery, George Stephenson was fully aware of the large number of accidents caused by explosive gases. In his spare time Stephenson began work on a safety lamp for miners. By 1815 he had developed a lamp that did not because explosions even in parts of the pit that was full of inflammable gases. Unknown to Stephenson, Humphry Davy was busy producing his own safety lamp.
In 1813 Stephenson became aware of attempts by William Hedley and Timothy Hackworth, at Wylam Colliery, to develop a locomotive. Stephenson successfully convinced his colliery manager, Nicholas Wood, his to allow him to try to produce a steam-powered machine. By 1814 he had constructed a locomotive that could pull thirty tons up a hill at 4 mph. Stephenson called his locomotive, the Blutcher, and like other machines made at this time, it had two vertical cylinders let into the boiler, from the pistons of which rods drove the gears.






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