Mo Hong wept and lowered his head in thought. Plus! The temperature was high in the afternoon. There is a nosebleed in the nostrils."

He got into a fight in the early hours of the morning and was hit on the nose. The nosebleeds kept flowing intermittently, but because the weather was cold, the blood flow was not smooth, and the flow was not large, so I didn't pay much attention to it.

Because of the floor heating in the school, the temperature is high, and Sun Dan's class is novel and interesting. The ancients did not think about it, Chen Hong could hear it and enter the alley, and his heart was excited. The body suddenly became hot, and the nosebleeds kept flowing.

Sun Dan glanced at him: "Your nose is bleeding." ”

"You want to care?" Chen Hong didn't appreciate Sun Dan's affection, and rolled his eyes.

Sun Dan smiled lightly, not wanting to entangle with this half-grown child, and touched his hand on the book: "Ladies and gentlemen, I talked about interpersonal relations in the last class, and I want to talk about Lao Zhuang today." I'll talk about "Lao Tzu" first, and then "Zhuangzi". Lao Zhuang's doctrine is the foundation of Taoism, broad and profound, and I can't finish this lesson today. I'll talk about some of my thoughts about reading Lao Zhuang during this time

Six

Lao Zhuang's doctrine is a big classification of modern Chinese studies, and the relevant research articles are full of sweat, and Sun Dan is lazy, so he casually carved and plagiarized an article, and read it according to the book. The beginning of the network is "Lao Tzu", so reading is the research results of later generations, and boring things are inevitable, and even Sun Dan himself is bored with it. Fortunately, the more than 30 students have a high level of Chinese studies and can understand it. Moreover, many of the views of the masters of Chinese studies in later generations have been summarized on the basis of the research results of their predecessors, and the word "wide" alone and the breadth of their horizons have thrown the ancients far out of the five miles.

Zhang Zhongxing, Zhang Taiyan, Liang Qi, Chen Duxiu, Lu Xun, Hu Shi, Feng Youlan, Fu Sinian, Qian Mu, the research articles of any modern master of Chinese culture are also outstanding in ancient times.

The students were all amazed when they heard it: Mr. didn't talk about other skills, but in terms of Lao Zhuang's efforts, he was already first-class in the world.

Seeing the admiration on the faces of the students, Sun Dan knew that the effect had come out. Although the last lecture on interpersonal relations made the little eunuchs dumbfounded. But in this era, this doctrine is still suspected of heresy. After today's lesson, I finally shocked these little monkeys with real knowledge.

The dignity of the teacher is initially established.

Once the effect of this serious learning is achieved, the next step is to teach something light. One piece of relaxation is the king, and students like to listen to it.

Although the class was quiet, there were still discordant voices.

Chen Hong's nose was still bleeding, probably because the number of platelets in his blood was insufficient, and the coagulation function was not strong.

His freshly stuffed paper ball was quickly soaked in blood.

The Inner Book Hall is a high-level administrative college for the Imperial Palace to train future stewards, and uses high-quality rice paper produced in Xuancheng, Anhui Province. This kind of paper made of bamboo is extremely flexible, and the snow white is as smooth and moist as jade. But as long as you don't smear alum on it. Extremely permeable.

It is precisely because of this strong water permeability that rice paper has become an essential paper for splashing ink in Chinese paintings. Because of the permeability of rice paper, the ink can naturally spread out on the paper, and naturally carry a dripping water vapor.

Sun Dan remembers when he was in college. There is a classmate in the class who learns to paint, usually only uses low-quality rough-edged paper when practicing, and only when he participates in the formal calligraphy and painting competition, he grits his teeth and pays for a dozen pieces of rice paper.

Chen Hong's blood was getting more and more, and the paper ball in his nostrils kept changing, and soon, a pile of shocking red was thrown under his feet.

Although Chen Hong is bold, there is no way to shed blood like this. spared him as rebellious. But because of his age, he doesn't have much knowledge. There was still some panic in my heart, and my face turned white.

"Lao Tzu will talk about it here first, and then I will start to talk about Zhuangzi in general. Take a break for a pot of tea between classes. ”

After speaking, Sun Dan looked at Chen Hong: "Your nose should be dealt with, it is not a way to flow like this again." ”

Chen Hong continued to roll his eyes: "Nonsense. If I continue to flow like this, I'm going to die, don't you want to stop the bleeding? But the just can't stop it, what can I do. Because of the excitement, several friends had nosebleeds flying into the air. Fell directly on the neck of one of the eunuchs in the front row.

The little eunuch turned his head and glanced at Chen Hong dissatisfied.

Chen Hong glared: "Why, I'm about to die." Still not satisfied? ”

The little eunuch saw that Chen Hong's face was covered with blood, and his expression was hideous, and he was naturally afraid in his heart: "I, I, I."

Sun Dan shook his head helplessly: "Do you want to stop the bleeding?" I have a solution. ”

Chen Hong snorted: "Sun Dan, your knowledge is good. I hadn't heard of you knowing, so I went to find a dose of gold sore medicine to be safe. ”

Seeing that Chen Hong was rude, Lu Fang was dissatisfied. He just saw Sun Dan looking at him with expectant eyes. has regarded himself as Sun Dan's proud protégé. The teacher was looked down upon, and he, a student, was naturally obliged: "Gold sore medicine? Do you still split your nose and apply medicine, how to bandage it? ”

Seeing that Lu Fang was talking interestingly, everyone laughed quietly.

Chen Hong jumped like thunder, clenched his fists and shouted: "Lu Fang, the account between you and me will be settled." He ***, counting the night, everyone went to the casino to play together, and later got into trouble with the thugs inside. You're fast, turn around and run. Leave the seven people behind, and beat me to the back of the class. Let's find a secluded place" to talk about it. ”

Sun Dan then woke up to the fact that Chen Hong's current appearance turned out to be beaten by someone, and he wanted to come when he went out of the palace to gamble with a group of little eunuchs, because of the thousands. was revealed, only to be beaten on the head and bleeding.

Regarding gambling, Sun Dan has no bad feelings. When he was a civil servant, he was idle and bored, and he often played mahjong with others.

Besides, the little eunuchs live a boring life, and their spare time life is also very boring, and it is normal for people to go out of the palace to engage in some entertainment activities.

Lu Fang listened to Kidney Hong's vicious words about wanting to trouble himself, his face changed, but he refused to admit defeat in his mouth, and said coldly: "Your own eyes are not good." When we encounter major events, we blindly act recklessly, and do not see clearly the situation between us and the enemy, and blame us for rising. What is the rationale for this? Chen Hong couldn't hold back any longer, and rushed up with a roar, and sprinkled a bloody kid all the way. He grabbed Lu Fang's neck, and the cat's eyes were about to jump out of his sockets: "Damn, let's teach you this now." A rabbit with long legs. ”

Lu Fang is a child after all, and when he saw Chen Hong's fierce appearance, he was already afraid in his heart: "In front of Mr., you dare to be rude?" ”

Sun Dan saw that the two of them were really talking. said: "Chen Hong, do you want to stop the bleeding?" If you want. Just calm me down" let Changfang go. ”

Chen Hong stopped dumbfoundedly. Letting go of his hand: "Why don't you want to, a fool doesn't want to." ”

Sun Dan said to Lu Fang, "Take Chen Hong outside and do as I say." ”

"Okay." Lu Fang mustered up the courage and dragged Chen Hong to the snow outside the study house with Sun Dan.

All the students were curious, and they also followed, surrounding Chen Hong in their hearts, and watched with a stable mood.

Sun Dan: "Chen Hong, you bury your head, Lu Fang, you grab a handful of snow and wipe it on the back of Chen Hong's neck." ”

"Why is that?" Chen Hong was curious, and before he could come back to his senses, a handful of cold snow fell on his neck, making him feel so cold that his body shrank into a ball: "***." It's too cold. Lu Fang, what are you doing here? ”

Seeing that Chen Hong was unlucky, Lu Fang was overjoyed, and threw a ball of white snow into Chen Hong's vest, pretending to be innocent: "Mr. asked me to do this, do you dare to refute Mr.'s words?" ”

"***, it's cold. Lu Fang, Sun Dan asked you to wipe the snow on the back of my neck, why did you throw it on my vest. As soon as Bai Xue fell into the vest, his body temperature suddenly turned into ice water, and Chen Hong couldn't help shivering. He raised his fist and was about to hit Lu Fang: "You kid has a personal vendetta, our family will open a seal for you today!" Hey, why doesn't my nose bleed?"

Chen Hong pulled out a clot of blood from his nostrils and couldn't help but froze.

The little eunuchs were also in an uproar: "Sure enough, it's gone." What a trick, sir! ”

Sun looked at Lu Fang with a smile: "Lu Fang." Let me ask you, why does ice on the back of the neck stop the nosebleed? ”

Chen Hong was curious, and asked first: "Why is this happening?" ”

Lu Fang: "Please also ask sir." ”

Sun Dan pointed to the back of Chen Hong's neck and said, "The human head is the place where the yang energy is the most abundant, and the six yang kui are rich in blood vessels. Because of this, a small wound can bleed a lot. The blood in the human head is transported upwards through the blood vessels in the neck. Look here" He pointed to the major arteries on both sides of Chen Hong's neck: "These two blood vessels are the main blood delivery channels, in addition to these two blood vessels, there are also a large number of blood vessels like head filaments, but they can't be seen by us." ”

"Let's talk about the problem of Chen Hong's nose bleeding, there are also a large number of hair-thick blood vessels in the human nose, and when they are dry, these blood vessels lose their elasticity. It is easy to become brittle and crack, so in the autumn frost season, as soon as we get on the fire, we will have nosebleeds. ”

Everyone suddenly realized: "I see! ”

Sun Dan: "Of course, Chen Hong's nose was beaten and his blood was ruptured, and it has nothing to do with the dry weather." Of course, Chen Hong has a short temper, is easy to get angry, and may have a nosebleed much larger than the average person. ”

Everyone laughed quietly.

Chen Hong's face was so red that he couldn't speak for a long time.

Sun Dan continued: "I don't know if you don't have it now. On a hot day, the blood vessels on the back of our hands are very thick, and when it is cold, the blood vessels are hidden under the skin.

"Yes, yes, yes." Lu Fang nodded again and again.

Sun Dan: "Everything in the world expands when it is hot and constricts when it is cold, and the same is true for blood vessels. Chen Hong's nosebleed came from a ruptured blood vessel. And there is a natural substance in our blood vessels that allows blood to clot. In this way, people will not be drained of blood because of a small wound. But Chen Hong's wound was a bit big and couldn't be stopped, so I asked Lu Fang to use snow to cool the compress. As soon as Chen Hong's blood vessels contracted, the wound became smaller, and the bleeding stopped. ”

"Ah, I see!" The little eunuchs all opened their mouths, and they all thought it was incredible.

Scientific common sense in the eyes of later generations is an unheard of advanced knowledge in ancient times when there was no anatomy.

Sun Dan even knows the structure of the human body clearly, and this knowledge can only be described by the word demon.