I was watching short videos and was seen by ancient people

Chapter 136: What causes poisoning when burning coal? ( two)
Emperors of other dynasties were very happy when they saw this comment.

Just now they were worried about how to solve the problem of coal poisoning, but now they see the solution.

Qin Dynasty.

When Qin Shihuang saw the comments on the sky screen, he suddenly felt that the coal was not unusable.

So he made a decree to let the Mohist disciples go find and dig for coal.

After receiving the order, the Mohist disciples returned to their courtyard.

As for the use of coal, they felt that it was not limited to heating, but could also be used to smelt metals.

Moreover, comments on the canopy also said that adding limestone to coal can smelt metals with better properties.

So the Mohists used lime-added coal to smelt metal. They found that bronze, which had been difficult to melt before, actually melted easily.

Even extremely scarce iron tools can be melted by coal.

You must know that iron has a higher melting point than bronze, and ironware is sharper than bronze.

Now it can be melted so easily, which shows that iron tools will be popular in the future, so they once again told Qin Shihuang the good news.

Qin Shihuang touched the iron sword he had just smelted, and then touched the iron sword he carried with him.

The iron sword on his body was made of heavenly black iron and had been with him for more than 20 years.

When it was being made, it was embarrassing for several old masters.

After a long period of forging, they managed to make this iron sword.

However, Qin Shihuang did not expect that the briquettes made from the canopy could be easily smelted into iron swords.

And he touched it and found that it was no worse than the iron he was wearing.

So he waved his hand and sent people to search for coal, and then refine iron tools for the army.

Qin Shihuang believed that if his Qin Dynasty had iron weapons, the surrounding barbarian countries would not have anything to worry about.

Han Dynasty.

Those craftsmen who had given up using coal to smelt ironware saw on the canopy that lime could remove harmful substances from coal, and they also tried it.

They found that the coal after adding lime was much easier to burn as it was said on the canopy.

At the same time, according to what Tianmu Mountain said, they used such coal to smelt some steel and found that its performance was completely different from before.

In the past, the steel smelted from coal without adding lime was simply useless.

However, the steel now smelted by adding lime not only has the same properties as the steel smelted from charcoal, but it can also easily melt iron ore.

When this happened, the craftsmen who made their own steel were overjoyed.

At the same time, they told their superiors the good news and asked them to buy coal to smelt steel.

When the officers heard the news from the steel-smelting craftsmen, they couldn't believe it.

So they urgently called some craftsmen and smelted steel in front of them.

However, the fact is as the craftsmen said, the iron ore that was previously extremely difficult to melt melted in a very short time when smelted with coal after adding lime.

And the quality that came out was not as useless as before.

Seeing the smelted sword in his hand, he was overjoyed and quickly sent the good news to his superiors.

As officials continued to convey the good news, the news finally reached Liu Che, Emperor Wu of the Han Dynasty.

Emperor Wu of the Han Dynasty Liu Che couldn't believe it when he saw the news.

So he quickly ordered the craftsmen in the palace to try to see if the effect was as reported.

You must know that iron ore was extremely difficult to smelt in the past.Now it is possible to use the coal mentioned in Tianmu to melt iron ore in a short period of time. Emperor Wu of Han Dynasty Liu Che couldn't believe it.

After hearing the order from Emperor Wu of the Han Dynasty Liu Che, the palace craftsmen smelted iron ore based on the reported information.

Sure enough, the iron ore melted under the action of the coal with lime added in a very short time.

When Liu Che, Emperor Wu of the Han Dynasty, saw this situation, he was very happy.

He felt that if a large number of iron weapons were used in the second attack on the Huns, the Huns would not be afraid.

Three Kingdoms period.

Cao Cao, Liu Bei, and Sun Quan saw the message on the sky screen, and they also thought of using this black coal mine to smelt iron ore.

As expected, the iron ore was melted in a very short period of time, and they quickly asked their craftsmen to use coal to melt the iron ore to make weapons.

They believe that with such speed of manufacturing weapons, the world will be theirs.

Tang Dynasty.

After Li Shimin and his ministers heard that the military leader of Goguryeo was unconscious, they implemented a series of plans.

As they expected, Goguryeo had nothing to fear.

Cheng Yaojin even shouted that he wanted to crush Goguryeo.

At this time, Cheng Yaojin saw the comments on the marquee, and he quickly reminded Li Shimin to read it.

He wanted Li Shimin to issue an order to test whether such coal could really smelt iron ore.

Cheng Yaojin felt that if it was true as Tianmu said, then there would not be a shortage of weapons to attack Goguryeo like now.

After Li Shimin saw the comments, he listened to Cheng Yaojin's advice and asked someone to test it.

I found that the smelted iron was no longer as fragile as before.

Not only does it have the same performance as that made from charcoal, but it also melts iron ore faster.

So Li Shimin quickly issued an order to find this coal mine to smelt iron ore to make weapons.

At the end of Ming Dynasty.

After Yuan Chonghuan received Zhu Youjian's imperial edict, he did not understand the content of the edict.

Not only did he know that coal was poisonous, but he also knew that the iron produced from the coal was useless.

Now after seeing the imperial edict, his first reaction was that there was something wrong with it.

Then he read the details of the imperial edict and realized that he was not asked to use it directly, but that he was asked to find a way to eliminate those harmful gases.

At this moment, he saw this comment on the marquee and thought he could give it a try.

So he ordered the video to find a blacksmith and use the lime coal to smelt steel according to what was said on the sky screen.

After a while, the steel was smelted.

Yuan Chonghuan picked it up, touched it, and then slashed it with the weapon he carried, and found that it was almost the same.

And according to Tianmu, coal added with limestone will greatly reduce harmful substances and can be burned indoors.

But Yuan Chonghuan felt that it was not safe enough, in order to avoid people suffering from coal poisoning.

He also imitated the coal stove on the canopy and built a large chimney to allow the coal burning gas to be discharged outside.

At the same time, he also built a fire kang in the barracks where he was stationed, and asked people to collect some coal as fuel for burning the kang.

Yuan Chonghuan believes that with these things, the soldiers stationed in Liaodong this year will never freeze to death again.

(End of this chapter)