How did the ancients use coal?
This is a more difficult question to answer.
However, from Yu Qian, one of the "Three Masters of the West Lake", in his poem "Yong Coal", we can learn a little.
Yu Qian refers to coal as "Ujin" in his poem, indicating that in the Ming Dynasty, it was still a rare thing. Taken from the underground, but for the ancients, it is still relatively difficult to obtain.
Modern people know that its use is very wide, and the ancients mainly used it for heating.
But Yu Qian did not stop there, just as he saw from the lime the spirit of "crushing bones and powder and not being afraid, leaving the green and white in the human world", he saw from the burning of coal the heart of the bold loyalty and the fist for the people's interests.
Whether it is "Lime Yin" or "Yong Coal", it is yu qian himself. He practiced this with his life.
As Qu Yuan said, "Although he died nine times, he still has no regrets"!
Coal, oil and natural gas, the three major fossil fuels, are widely used today, but the risks of use are still high.
Recently, gas poisoning incidents occur frequently, and precautions for safe use must be observed when using to avoid loss of life and property.
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