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The development of the coal industry
Member rating: No Rating | Words: | Submitted: Fri Mar 31 2006
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Barthe The development of the coal industry. Myriam 4è7 1) Light As a beginning, workers had problems of lighting their work. Several methods were used, none of them were particularly attractive. It was not safe to light in a mine. They first used rotten fish, which gave off a phosphorescent glow (besides the dreadful smell). Candles, which exploded the methane flint mills, which produced sparks of light but could also ignite the methane. After 1815, the Davy lamp was available, but it cost money and employers were reluctant to buy them. The risk of explosion was reduced by the invention by Sir Humphrey Davy of a safety lamp in 1815 which meant that a miner could have light underground but without having to use the exposed flame of a candle. The lamp became known as the "Miners Friend". It gave off light but a wire gauze acted as a barrier between the heat given...
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