On the morning of the third day of the new year, Zhao Hao went to the backyard room to take a look and saw that the honeycomb coal had been dried up.

After breakfast, the little lord also came, and naturally the little county lord was indispensable.

"Yo, the county lord is here too." Zhao Hao was standing in the courtyard, directing his disciples to make preparations before the test.

"Good day, big brother." Li Mingyue said softly to Zhao Haofu: "Mother was worried that my brother would disobey the yang, so she ordered my little sister to accompany him to prevent him from abducting him elsewhere." ”

Li Chengen was dumbfounded when he heard this, and said in his heart? Right? It's clear that when I'm going out, you're going to follow you, right?

"That's a really hard girl." Zhao Hao couldn't help but sigh in his heart, he didn't know what the county lord had done in his previous life, and he actually had such an unconscious brother.

"It doesn't matter, as long as my brother can learn well, why not work harder for my sister?" Li Mingyue said, glancing at Li Chengen with a smile, lest he say something inappropriate.

Li Chengen's mouth twitched a few times, and finally turned the truth of the matter into a secret rotten in his stomach.

But I heard a loud laugh overhead.

When he looked up, he saw the governor who was sweeping the floor, sitting on the roof, pointing at himself and laughing.

~~

Today is the last day of Zhao Shixi's New Year's holiday, and tomorrow, he will devote himself to a happy and intense training.

And those entertainment venues in the capital will not open until the sixth day of the first lunar month...... Zhao Shixi's tickets were not spent, but one was changed into two.

This has made Xiwa very low tide in recent days, and she has been lying on the roof basking in the sun, and she doesn't want to pay attention to anyone.

It wasn't until he heard the conversation between the three below that he knew that Li Chengen was also thrown by his mother to Zhao Hao for discipline.

Zhao Shixi immediately felt that this world was still rewarded for good and evil.

So he pointed at Lee Seung-eun on the roof and laughed.

"I didn't expect you to have today, right? Are you embarrassed to laugh at me? ”

When the little lord saw that it was him, he couldn't help sneering and said, "Then I am also your uncle." ”

"Your uncle!"

"Your uncle!"

The two of them went up and down, and they faced each other like cockfights.

Zhao Hao's apprentices who watched shook their heads, and said in their hearts that the master was too hard. In addition to teaching us geniuses, we also have to discipline mentally handicapped children.

"Brother Hugh wants to argue with someone......" Li Mingyue couldn't stand it, timidly pulled the little lord's hand, and at the same time screwed him hard under the cover of his sleeve.

Then, while everyone was looking at the roof, she whispered in a voice that only two people could hear: "Shame me again, and you will die!" ”

Lee Seung-eun's expression was distorted in pain. But seeing the kind eyes of the girl, he had to smile bitterly: "That's it, don't be like a gatekeeper." ”

"You're an apprentice." Zhao Shixi was triumphant like a winning rooster.

"Enough of that?" Zhao Hao glanced back at Zhao Shixi.

The cockfight turned into a cross-eyed, and Zhao Shixi's legs were weak and he almost fell off the house......

~~

After Zhao Hao and Li Mingyue finished dealing with the problem children, the apprentices were also ready for experiments.

In the spirit of scientific experiments, Zhao Hao asked them to prepare three rooms and three charcoal basins.

The disciples first concentrated the charcoal basins in the first room.

Then he explained to the county lord's siblings: "These three basins are filled with ordinary loose coal, and coal lotus made from ordinary loose coal, as well as high-quality anthracite. ”

"Hmm." At this time, not only Li Mingyue, but even Li Chengen showed a curious look, wanting to see what Zhao Hao was going to do.

Young people are curious by nature, so how can they not be interested in new and unseen scientific experiments?

"Come, let's light them separately." Zhao Hao snapped his fingers.

The senior brother and the second senior brother went to order the two pots of loose coal.

Both of them helped Qiaoqiao to make a fire in Caijia Lane, and they may not be able to light it if they change their junior brothers.

However, even the two experienced senior brothers had to light the charcoal before they could lead the coal in the basin.

And Zhao Shizhen only used the velvet to take the lamp, and set a piece of coal root on fire.

"Is it so easy?" The little lord was taken aback, in his impression, the charcoal was very difficult. It must be like Eryang, first use charcoal to start the fire.

Although he is a boy who is not familiar with ordinary affairs, he still has this common sense.

"Because this piece of coal root is mixed with sawdust." Zhao Hao smiled faintly and said, "The other two ordinary coal lotus roots are not so good." But this piece is on fire, and it will all burn. ”

"Wonderful." Li Chengen couldn't help but praise.

"That's it, the eldest brother is the most capable......" Li Mingyue held her cheeks when she said this, and she didn't know if she was freezing or what.

When the other two pots were lit, Zhao Hao ordered Eryang to bring them into the other two rooms.

Then everyone followed Wang Wuyang into the house where ordinary coal was burned.

After a while, they were all choked by billowing smoke.

"Cough, cough, cough ......" coughing one after another, a group of young ladies from rich and noble families finally realized why the people of Beijing guard this inexhaustible energy, but only when they have no other choice, they burn coal for cooking and heating.

This soot is terrible. As long as the coal stove is lit, the house will be filled with smoke for a while, and no one can stay at all.

Zhao Hao took people into the anthracite burning room again, and it was really much better, at least there was no smoke and dust.

"This kind of white coal is really good, I heard that many families use it to replace firewood." Wang Dingjue said down-to-earth: "But it's still a little choking, so rich people still burn charcoal." ”

"Uh-huh." Everyone nodded thoughtfully, this so-called 'anthracite', although you can't see any smoke when burning, it will choke people if you stay next to it for a long time.

And Li Mingyue found that a thin layer of soot fell on his new white velvet cloak at some point......

She hadn't even entered the first room, so she could have landed here.

Eventually, they entered the house where honeycomb coal was burned.

Everyone was surprised to find that this coal lotus made of ordinary coal had been burned for so long, and there was neither smoke nor choking......

"How can there be no smoke?"

"Why is there no smoke?!"

"And it's not choking!"

Looking at the stunned appearance of everyone, Zhao Haoxin said that this formula of honeycomb coal is still used on a large scale in the countryside after four hundred years.

"There is no coal ash yet...... the little county lord touched the table, only to see that his fingers were as smooth as ever, and he couldn't help but exclaim.

"Really careful." Zhao Hao nodded approvingly

Li Mingyue was like eating honey, sweet from her heart to her face.

Everyone looked at Zhao Hao in unison, and asked him what was going on?

"I'll tell you directly, I'm afraid you won't be impressed." Zhao Gongzi put his hands behind his back and smiled at the students: "Why don't you try to use scientific methods and study it yourself?" ”

"What is the scientific method?" The little lord felt that he knew so little......

"It is a method of conducting research under the guidance of the scientific spirit." Wuyang and Zhao Shizhen surrounded the fire and observed it carefully.

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