The cause of the carbon poison had been found, and there was a preventive plan. Of course, there was still some work to be done. The School of Medicine had to continue researching on how to treat carbon poison poisoning.
As for why the charcoal could change between poisonous and non-poisonous due to a handful of plant ashes, the Daoist School of External Alchemy was very interested in this.
As for the construction of chimneys, furnaces, and heating equipment, the Gongshu Family and the Mohism Family would be responsible for it.
"During the Warring States Period, the Hundred Schools of Thought contending is fascinating. However, I think that today's event is better than the Hundred Schools of Thought contending. Everyone, let go of your prejudices and gather the knowledge of the Hundred Schools of Thought to solve the world's problem. This event will definitely be remembered in history," Li Shimin said emotionally.
"I have recorded everything. When I return, I will write today's event into the history books," Yan Shigu said solemnly.
The Hundred Schools of Thought were overjoyed. They said in unison, "It's our honor.
Everyone stood up. The Hundred Schools of Thought Meeting had officially ended.
Walking out of the meeting room and breathing in the fresh air, everyone thought about the dangers of the carbon poison and felt very emotional.
If the carbon poison was not cured today, if someone wanted to use this method to harm others, they would not even know how they died.
"Brother Changsheng!" Cheng Yaojin went up to Changsheng Taoist and said with a cheeky smile, as if he did not remember that he had mocked Changsheng Taoist just now.
"General Cheng, please speak your mind!" Changsheng Taoist said helplessly.
"I wonder if Daoist Changsheng still has any of his secret hair dyeing techniques. Recently, this old man has noticed that my white hair has suddenly increased by quite a lot. Time is really making me old!" Cheng Yaojin looked at Daoist Changsheng's head of black hair and said enviously.
In fact, Cheng Yaojin was not old. He was only forty-five years old. Although he was young and energetic, it was the age when people's hair increased the fastest. It was the most sensitive.
The others could not help but listen. Most of them had experienced the Daoist Conference and knew that Changsheng Taoist's hair was dyed.
Not long ago, there was a rumor in Chang 'an that the Retired Emperor was nearly 70 years old and his hair was all white. After using the secret hair-coloring technique offered by Meton, his hair turned black instantly, which made everyone envious.
Cheng Yaojin asked Meton for it many times. Unfortunately, Meton's stock had long been plundered clean by Li Yuan. Unable to bear the annoyance, he had no choice but to push it to Daoist Chang Sheng.
Cheng Yaojin saw Chang Shengzi today. How could he miss this opportunity? He immediately went up to pester him.
Unexpectedly, Yan Shigu also stepped forward and said, "Daoist Brother Changsheng, I would also like to ask for a copy of the hair-coloring secret technique from you. I don't know if you would be willing to part with it."
"Hmm?"
Everyone immediately stared at Yan Shigu's white hair. This old man was the most old-fashioned. They did not expect him to be as frivolous as Cheng Yaojin.
Yan Shigu smiled bitterly and said, "The Old Man is already so old. It doesn't matter if his hair is black or not. It's just that the Old Man's son, Yan Chengyun, rarely had white hair. Because of this, the Old Man had sought medical help many times. Even the two miracle doctors were helpless. Coincidentally, I heard about Daoist Chang Sheng's hair-coloring secret technique. That's why I shamelessly asked for it."
"I see." Everyone was enlightened.
"Rarely having white hair is indeed a difficult problem for our medical school. There is no effective treatment at the moment. Your son's hair-coloring secret technique is indeed a good method. "Sun Simiao praised.
"If that's the case, I'm afraid that Mo Hospital will have to ask Daoist Chang Sheng for some hair-coloring secret techniques as well. That way, there will be a solution for patients with white hair." Hua Yuan was moved and said.
Daoist Chang Sheng was instantly overwhelmed with emotions. During the Daoist Conference, his hair-coloring secret technique was exposed by Meton. He was condemned by everyone and was like a stray dog. Who would have thought that the person who saved him was also Meton?
Since the hair-coloring secret technique was so popular, it was definitely a second chance for him. Furthermore, what he did this time was beneficial to the world.
Daoist Chang Sheng bowed and said, "Everyone, please don't be anxious. I've already cooperated with Little Friend Mo. I've asked the Mo Family Village to produce the hair-coloring secret technique. Currently, it has already started to be mass produced. It will be sold in Chang 'an City in five days. I only have two bottles of hair-coloring secret technique.
One of the reasons why he was sent by the Daoist External Alchemy Sect was that the hair-coloring secret technique was about to be sold. His Daoist Sect did not have any experience in business. This time, he was here to seek cooperation from the Mo Family.
"Thank you, Daoist Chang Sheng!"
Yan Shigu's face lit up with joy as he hurriedly took a bottle.
Yan Chengyun's hair had been bothering him for ten to twenty years. Now, there was finally a solution.
Cheng Yaojin also hurriedly took the other bottle. He smiled so widely that his old face was blooming.
The people who were listening by the side were also delighted when they heard this. They could still afford to wait for five days.
Following Li Shimin's departure, the people from the Hundred Schools of Thought dispersed.
In the study of the Yan Residence.
A young man with white hair was holding a pencil and practicing calligraphy. He was extremely serious with every stroke.
The ancestor of the Yan Family was Confucius's disciple, Yan Hui. Yan Shigu's grandfather was a famous Confucian, Yan Zhitui. He had the famous Yan Family Teachings.
Therefore, the Yan Residence's teachings were very strict. Even if there was no supervision, this young man was still very self-disciplined.
A kind middle-aged woman carried a bowl of black sesame paste to the young man's side. Seeing the young man's white hair, she immediately felt sorry for him and said, "Chengyun, don't waste your energy anymore. Take a rest!"
In this era, people didn't know much about people with white hair. The most common thought was that they were using their brains too much.
Yan Chengyun shook his head and said, "Mother, don't worry. I'm only practicing calligraphy. I'm not using my brain. Doctor Sun also said that I was born with white hair. I'm not using my brain too much."
Yan Shigu said with heartache, "There's no rush. Come, drink this bowl of black sesame paste. According to folk recipes, many people have been cured of white hair after drinking black sesame paste."
Yan Chengyun smiled helplessly. He didn't know how many times he had drunk this black sesame paste, but it didn't have any effect.
However, even so, Yan Chengyun didn't want to disappoint his mother. He obediently picked up the bowl of black sesame paste and drank it in one gulp.
"Cough cough!" Yan Shigu coughed loudly and walked into the study.
"Master!"
"Father!"
Yan Shigu and Yan Chengyun greeted each other. According to the Yan Family Teachings, husband and wife, father and son still had to follow etiquette.
Yan Shigu nodded and said, "This is the content of today's Discussion of the Hundred Schools. Tidy it up and learn from the wisdom of the seniors."
"Discussion of the Hundred Schools?" Yan Chengyun's eyes lit up. He asked, "Mo Jiazi is also in it?"
Mo Jiazi was now the idol of all the youths in Chang 'an City. Even Yan Chengyun was no exception.
"Carbon poison, chimney, heater …"
"Attention to everything is knowledge. Experience in human relationships is an essay!"
Yan Chengyun picked up his father's shorthand notes. His eyes grew brighter and brighter. The collision of the Hundred Schools of Thought and Meton's classic poems fascinated him.
"Also, this is the Longevity Taoist's secret hair dyeing technique. When you're done tidying up, dye your hair black!" Yan Shigu put a bottle of ointment on the table and walked out of the study as if nothing had happened.
Soon, Yan Chengyun and Yan Shigu's surprised screams came from the study. At this moment, their strict family teachings were all forgotten.
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