"What is the scientific spirit?" The little county lord asked if he didn't understand. She was always very curious about where Zhao Hao's knowledge came from. Of course, he would not miss this opportunity to understand the whole story.

Wuyang Yizhao observed the burning honeycomb coal, and answered in a silence:

"It's curiosity, you must be good at asking questions."

When the county magistrate heard this, he thought to himself that I am very good at this.

"It is to use your imagination to find the answer."

The county magistrate said, I am good at this, too.

"It is to respect empirical evidence. Imagination must be based on objective basis, rather than random guessing."

The county lord nodded silently, my imagination is based on... right?

"It is a dialectical thinking, which requires thinking and evaluating the facts you see in a whole and essential way."

"It is not stubborn. You must actively accept empirical conclusions and actively adjust your cognition..."

"It is tolerant of failure and believe that the truth comes from constant trial and error!"

When Li Mingyue heard the last three points, she could only stare at her.

Although she was not clear, she applauded: "It's so good, so knowledgeable!"

But she didn't dare to ask again, what is the scientific method... She was afraid that she would fall asleep on the spot after listening.

~~

After a cup of tea.

Zhao Hao asked the disciples with a smile, "Tell me what I have observed."

"The color of this fire is different!" Yu Shensi immediately replied: "It is blue! The fire burned from loose coal is red!"

"The color of charcoal is burning!" Li Mingyue hurriedly added, then looked at Zhao Hao with anticipation.

"Yes, I observed it very carefully." Zhao Hao nodded with a smile to show encouragement.

Yu Shensi pursed his lips, thinking that the master still didn't like me. It was clearly what I said, and the county magistrate added...

"The flames burned by the coal lotus root are small and soft, not as fierce as those two charcoal basins." Zhao Shizhen added.

"What else?" Zhao Hao asked again.

"It's been burning for so long, but the shape has not changed yet." Wang Dingjue poked the tongs and said a red honeycomb coal: "It's quite strong, no wonder there is no smoke."

"Let's use your imagination and guess the reason." Zhao Hao nodded with a smile, indicating that he would enter the next stage.

Zhao Shizhen replied quickly: "The secret of the blue flame is probably on the lotus eyes that are like small chimneys; the fire is gentle, the shape has not changed, and the coal ash is small, which is probably because of the yellow mud. As for why it has no taste, I have seen my uncle's ingredients, so I guess it is because of the lime."

"I'm right, uncle?" Zhao Shizhen asked confidently after he said that.

Wuyang also looked like you asked the boy to answer first, obviously he had no objection to his speculation.

Zhao Hao nodded with relief, but the corners of his mouth twitched twice without notice.

He's so fucking, this young master can't show off again...

An ordinary person is a teacher for a group of geniuses, which saves time and effort but is boring.

Fortunately, besides him, there are two ordinary people here.

Li Chengen and Li Mingyue blinked and listened to Zhao Shizhen's words, their faces were filled with question marks, exclamation marks and ellipsis.

"What is this and what?" Lee Cheng-en said he didn't understand a word.

"When burning the stove, as long as you pull the bellows, the fire in the stove will burn brightly, and it will turn blue... Don't ask me how I know? This comes from an experience that my junior brothers can't envy." Wang Wuyang explained.

"The charcoal that also burns blue flames is the most thorough burning type... Don't ask me how I know? This comes from a long experience that my junior brothers cannot envy." Then Hua Shuyang added: "So it can be indirectly speculated that good ventilation can make the burn thoroughly, and the flame when it burns completely is blue."

"So those little chimney-like lotus eyes have a ventilation effect!" Li Mingyue suddenly realized.

"Smart..." Zhao Hao praised her again, but did not praise her students.

But Eryang would not be as unlucky as the fifth junior brother... They thought this was precisely the manifestation of the master's overestimation of them.

"The reason for the mild fire is that yellow mud is added to the coal powder, reducing the coal content... I can tell you how I know, because I pulled the bellows for a chef and saw him using this method to control the burning of charcoal." Wang Dingjue continued.

"The yellow mud will become stronger and stronger when heated, rather than looser, so the shape will not change, and there will be so much coal ash that will not spread out." The fourth senior brother added.

"As for why lime quenching eliminates the smell of coal soot, this..." When it was the fifth junior brother's turn, Yu Shensi got stuck.

He couldn't help but complain in his heart that it was too unlucky to be the youngest. The senior brothers answered all the simple questions, leaving only the most difficult ones behind.

Yu Shensi had no choice but to say weakly: "I'm going to ask for a teacher..."

Fortunately, the senior brothers didn’t know anything, so everyone looked at Zhao Hao in unison. “Please give me advice from the master.”

Zhao Hao then replied with a faint smile:

"Because the slurry lime is calcium hydroxide, the choking smell of soot comes from sulfur dioxide. After the two react when heat occurs, they will turn into white, odorless calcium sulfate and water."

"..." Let alone the county lord and sister, even Wuyang and Yi Zhao were confused.

"Master, what are they and what are they?"

"This is chemistry." This made Zhao Hao finally regain his self-worth and showed off his increasingly mysterious way:

"Why does coal burn? Why does gunpowder explode? Why does food turn into wine? Why does iron rust? And so on... These secrets are all contained in chemistry. Once you master chemistry, you will see another world and even become a god in the eyes of the world."

After a pause, he looked at the students with a smile and said, "Do you want to learn?"

"I want to learn!" The six people responded in unison, especially Zhao Shizhen, who could study the explosion and his eyes were lit up when he heard that he could light up.

"Let's wait for you to pass the top scorer." Zhao Hao stopped the hole without any surprise. Because of the textbook of "Elementary Chemistry", I didn't write a single word...

"Yes, Master!" The three senior brothers responded with high morale. They said in their hearts that the master was indeed a treasure chest, and they heard a profound knowledge from the old man.

"The disciple will do his best..." Yu Shenxing, who had been quiet, was also excited, and said that this knowledge can be applied as soon as he heard it. I want to learn this!

Even Zhao Shizhen ignited his heroic fighting spirit and secretly vowed that he would win the top scorer as soon as possible in order to have a chance to explode... Although he is not even a Tongsheng now.

Only the fifth junior brother's mouth twitched.

Who made him so angry that he vowed not to take the exam for the juren again?

I regret it...

~~

"Scientific Learning Records*Chemistry*Prologue*Carboniferous Fire" records:

‘In the first year of Longqing, more than 100,000 refugees lived outside the capital, with difficulty in food and clothing, and were mourning everywhere. Just as my teacher supervised all the disciples in the spring exam, he felt pity when he saw this. So he used four coals, one soil, a little lime, and a few coal lotus. He tried to burn it. There was no smoke or dust, nor any pungent air, which was far better than white coal. Moreover, it was not extinguished day and night, and it was more resistant to burning than charcoal.

The disciples were surprised to see it. My teacher laughed and said, "This mystery is all in "chemistry". This is the beginning of "Chemistry" under the science school. The learning of chemistry is a life-saving person, but it is actually the supreme and good learning. My teacher studied the heavens and the people, and should be remembered for the future.

Disciples should take care of their actions and record them respectfully.’

According to the "Scientific Learning Record *Mechanical Engineering Chapter 1 *Master Yanyang":

‘The first mold of coal lotus root was made by Yan Yangzi. My teacher was very happy when he saw it and said, ‘My son is a master, the king’s master will show his power overseas in the future. I will give you the gift!’

Yanyangzi was my disciple. He had not tied his hair at the time and had lost school since he was a child. My teacher's skills of knowing people are so magical, but unfortunately it has been lost.'
Chapter completed!