After all, both the tall and heroic middle-aged people and the gentle young people are smart people, and the smart people's reactions are always one step ahead of others.

This time, in addition to admiration, their feelings for Lin Feng were more of admiration.

This time, Lin Feng did not let the gentle young man get up to answer, but said himself: "A horse is too heavy, and a scale alone cannot weigh it. If you want to weigh it, you must find another way, think about it.

The way to break it down is to put the horse on the boat and observe the draft mark of the boat. Then take the horse down and put stones into the boat and let the ship sink to the same mark. In this way, the weight of all the stones placed

, which is the same weight as a horse.”

Lin Feng explained it so clearly that anyone with a normal IQ can understand it.

All the students suddenly realized.

Lin Feng sighed secretly in his heart. These students have no background, no resources, and no brains. Unless they are lucky, it is basically impossible to get ahead.

However, if you are willing to work hard, change the current situation, and have enough food and clothing, it is still possible.

Lin Feng taught them for free for so long and pointed them to Pei County. It was considered a fateful acquaintance, and he was extremely benevolent.

However, it was the tall, heroic middle-aged man and the gentle young man who were newly arrived. They really learned this trick, which opened their eyes and gained a lot.

Lin Feng continued: "I taught you the first move, and you will experience it later. Now I teach you the second move. This second move is called first aid. It can not only save others, but also save yourself.

Have you seen the Wei River next to you? If someone accidentally falls into the water, how to treat it? Which of you is good at water, come out and set an example?"

Suddenly, a young man came out among the students. He stood up and said, "Sir, my family lives next to the Wei River. I am good at water and can catch fish in the water."

"Okay! Now jump into the water, drink twenty pieces of water, and then come up to me immediately."

The young man did as he was told.

After about half a stick of incense, Lin Feng asked the young man to lie flat in front of him and not move.

Lin Feng used both hands to squeeze the boy's chest.

Immediately, the boy spit out a large amount of water.

Lin Feng said while squeezing: "If you encounter a drowning person who is unconscious, just do this. First squeeze out all the water in his stomach. Normally, squeezing about ten times will be enough.

The person will wake up. But if it is not good, he must be ventilated."

"Sir, how do you ventilate?"

Some students didn't understand and asked.

"Of course you are passing on your own Qi to him."

Lin Feng pointed to the mouth, then pointed to the young man's mouth, and continued: "Aim and keep blowing into his mouth until he wakes up."

"Sir, if you encounter a woman drowning, is this the same?"

"Of course! Mencius said that if a sister-in-law is drowned and does not come to her rescue, she is like a wolf. Men and women give and receive without being intimate, which is a courtesy; and those who use their hands to help a sister-in-law who is drowning are called rights. Mencius taught this, human life is of paramount importance, and you cannot be rigid about saving others.

It is virtue and expediency."

"Oh! What if this can't save you?"

"Then we can only blame drowning people for their poor lives. First aid is not a panacea. Do your best and obey fate."

The tall and heroic middle-aged man asked: "What if I encounter a knife or arrow wound?"

"First use a red-hot knife, wait for it to cool, and pick out the blade or arrow. Then use boiled water, wait for it to cool down and become warm, use this warm water to clean the wound. Then apply healing medicine, and then soak it in boiling water

Wrapped in gauze. After doing this, the rest can only be left to your own imagination."

"Why use a red-hot knife and boiling water?"

"Because once a person is injured, evil things will invade. A red-hot knife and boiling water can kill these evil things."

"That's it! Thank you sir for your advice!"

He was a tall, heroic, middle-aged man who had been serving in the army for many years, but his soldiers died due to injuries and poor medical treatment. I don't know how many soldiers died there, even more than those who died on the spot.

The middle-aged Gao Da Yingwu never understood why most of the injured soldiers died despite treatment. Now he finally found the answer in Lin Feng.

In fact, this is a problem of wound infection, but Lin Feng would not explain it this way, because such an explanation would not be understood by the ancients.

Next, Lin Feng taught them some other first aid techniques.

For example, if you are stuck on a fish bone, drink mature vinegar and keep drinking until the fish bone is softened, then eat and swallow it.

For example, if someone is choking on food, stand behind the patient, wrap your arms around the patient, make a fist with one hand, and press it tightly on the patient's abdomen two fingers above the navel, and place the palm of the other hand under the fist, and push hard and fast continuously.

inside, push the impact upward until the foreign matter is discharged.

Of course, if you choke on food and there is no one to help you, quickly find an object at the same height as your waist and bump the chair with two fingers above your belly button until the foreign object is expelled.

There are also people who are comatose due to heatstroke due to excessive heat in summer. Move the patient to a ventilated, cool, and dry place, let the patient lie on his side, tilt his head back, and then wipe the patient's body with a cold towel. Whether he wakes up after that depends on his luck.

Already.

There are many first aid techniques, but the medical conditions in ancient times were limited, so these are the only ones that are relatively practical. Lin Feng taught more complicated ones, but it was of no use. These students can't learn them, and they won't be able to use them after they learn them. Unless they are specialized

Those who study medicine and bring their own equipment.

After Lin Feng taught the principles of measurement and first aid, he sent these students away.

All the students stood up and bowed to Lin Feng, thanked and said goodbye, and then reluctantly dispersed.

Although Lin Feng only taught these students for more than ten days, he broadened their horizons and pointed out the bright way for them, which can be regarded as a kind of reinvention for them.

After all the students had dispersed, only Lin Feng, the tall and heroic middle-aged man, the gentle young man and eighteen knights were left on the scene.

Lin Feng sat under the willow tree without getting up, and said loudly: "The eldest son, Fusu, and the general, Meng Tian, ​​since you are here to see me, please come over now!"

Fusu and Mengtian looked at each other, both curious as to how Lin Feng recognized them.

Fusu got up first, followed closely by Meng Tian.

The sixteen knights behind them were very conscientious and wanted to follow, but Meng Tian waved his hand to stop them and told them to stay where they were.

Meng Tian believed that he was not weak in martial arts, but Lin Feng did not have any weapons with him, so he was more than enough to protect Fusu.

The two of them walked about one meter in front of Lin Feng and stopped.

Fusu cupped his hands and said, "The two skills taught by Mr. Shicai opened Fusu's eyes. Fusu is very impressed by Mr. Shicai's great talent."

Meng Tian asked, "How did you recognize us?"
Chapter completed!