My school sweetheart

But how is that possible? Many people have seen Li Banxian perform this magic power of "washing hands in oil pan" before. How could it not be successful this time?

People's surprised eyes fell on Li Banxian who was lying on the ground. Finally, they fell on Xu Lang again. Now they feel that this young man is the real God.

As the person concerned, Huo QingChu is also stunned. She doesn't know what's going on. She looks at her hand, Xu Lang and the oil pot that is still boiling hot. She can't help walking over and intends to try again.

Is my hand mutated?

With this kind of doubt, Huo QingChu slowly went to the oil pot and planned to put his hand in again. But Xu Lang held his hand and shook his head slightly at her. She understood and had to give up.

And Xu Feng was also surprised to see everything in front of him. He couldn't help walking to the oil pan, picked a handful of moss and threw it into the pan. With the sound of "Chi La", he was immediately fried. This shows that it's really hot oil inside. However, why is ChuChu's hand OK, while Li Banxian, who is still full of confidence, OK?

This is also the doubt in everyone's heart.

Xu Lang asked Wang Mingquan to send someone to pull up a few electric light cannons in Zhou Dasheng's courtyard, which made the whole courtyard bright. He wanted to explain scientific knowledge to everyone on the spot and expose Li Banxian's fraud in the Jianghu on the spot.

Soon, the whole courtyard was full of lights, and thousands of people, old and young, men and women, gathered together. All of them widened their eyes and focused on Xu Lang.

Xu Lang walked slowly to Li Banxian and felt for him a few times. He felt for a piece of cotton thread from him and let the villagers around him touch it. He only felt that the cotton thread was wet.

Then, Xu Lang picked up a copper coin and tied it to the bottom of the cotton thread. In front of the crowd, he lit the cotton thread with a lighter, and the cotton thread burned.

However, the cotton thread burned away, leaving only gray ashes, but it still did not break. Like Li Banxian's "magic", people were sighing. They did not expect that Xu Lang had such magic power.

But Xu Lang said in a loud voice: "ha ha, what magic power is not magic power? Let's tell you the truth. In fact, the secret lies in the cotton thread itself. People who have touched the cotton thread feel that it's a little damp with the cotton thread, right?"

Xu Lang looked around the crowd. Those who had touched the cotton thread just now responded to Xu Lang in a loud voice.

Xu Lang continued: "the secret is here, because the cotton thread used for the performance was prepared by Li Banxian in advance. Before that, he soaked the cotton thread in a kind of chemical liquid called magnesium chloride, potassium chloride and so on. This kind of material is very easy to burn, and its ignition point is lower than the cotton thread itself. After these substances burn, they become gray The colored ashes seem to be the ashes formed by the burning of the cotton thread itself. However, these gray materials are wrapped in the real cotton thread that has not yet been burned. In this way, the flexibility of the cotton thread will not be reduced, but will be enhanced, let alone with a copper coin, that is, adding two more will not break. "

As Xu Lang said this, he tied two more copper coins to three, and the cotton thread did not break.

Many people were sighing. Although they didn't know the terms "magnesium chloride, potassium chloride" in Xu Lang's mouth, they saw the fact that Xu Lang said.

Huo QingChu, Xu Feng and others look at Xu Lang in astonishment. They realize that this guy already knows the answer, just to make Li Banxian's scandal more serious.

All eyes are focused on Xu Lang.

Li Banxian grinned and felt pain. His palm needed to be bandaged in time, but no one took care of him. He had missed the best time for treatment.

Then, Xu Lang took out the bag of needles from Li Banxian and took out one of them. Instead of putting it into the water immediately, he bent over and said to Li Banxian, "old man, use your head. I don't like your hair oil. My wife likes to dry it. If I don't wash my hair all day, my wife won't go to bed."

People are puzzled. They don't know why Xu Lang took the needle and wiped it on old man Li Banxian's head.

However, old man Li Banxian himself knew that all the secrets had been pierced by Xu Lang, and he hung his head in shame.

Xu Lang took the needle and gently put it into the bowl of water. Sure enough, he saw the needle floating on the surface of the water, but it didn't sink into the bottom of the bowl. Everyone was shocked. They knew that there must be some scientific truth in it. They quickly focused on Xu Lang, expecting him to solve the mystery for everyone.

Xu Lang said slowly, "folks, the truth is actually very simple. Water is composed of water molecules. There are forces between the molecules. This force is divided into tension and gravity. On the surface of water, the effect of tension is greater than gravity. Therefore, when a lighter thing, such as a thin needle, is placed at the right angle and skillfully, it can be done To let the needle float on the surface of the water, and in order to ensure that it is safe, the best way is to rub the needle between your hair. After you dye the scalp oil, the tension of the water will be greater. When the tension and buoyancy are greater than the gravity of the needle, the needle will naturally float on the surface of the water without sinking. "Although Xu Lang's explanation is easy and simple, this time there are more chemical terms, and the villagers are at a loss. However, they know that Xu Lang's explanation is right and more mysterious than Li Banxian's.

They firmly believe that profound things are right.

People just thought of a detail. When Li Banxian performed today, he did wipe the needle on his head. When he asked others to perform, he directly asked others to replace it with a new needle.

Later, Xu Lang asked someone to change a bowl of water, took three chopsticks, and demonstrated to everyone in public how to make "chopsticks stand upright in the water without falling".

Xu Lang dipped three square wooden chopsticks of the same length into the square head of the chopsticks. Then he dipped some water between the chopsticks. Then he put the three chopsticks side by side. Finally, he slowly inserted the three chopsticks into the water cup and let them go. The chopsticks did not fall down in the water.

Xu Lang hastily explained: "first of all, use the surface tension of water to" stick "the three chopsticks, and then constantly adjust the height of the three chopsticks, because it is actually three points touching the bottom of the bowl. As long as the center of gravity is within the triangle formed by the three points, it will stop.

Of course, it's not enough to understand these. We should be careful. As the saying goes, practice makes perfect. Just contact us several times. Come on, little friend, come and have a try. "

Xu Lang pointed to a little boy standing in the front and said.

The little boy was also very brave. He tried it three times according to Xu Lang's instructions. As expected, he let the chopsticks stand still. Everyone was so sorry that they clapped for Xu Lang.

The applause is like thunder, lasting for a long time.

While Xu Lang motioned for everyone to be quiet, he then said: "director Wang, you send two people, and then take some villagers as witnesses, to cut open the living Bodhisattva buried by Li Banxian in the south of the village. As long as you dig it out, the truth will come out naturally."

"Ah, don't dig. It's a Bodhisattva. It's the God who protects the fengshui of the whole village. If you move it, the whole village will encounter great difficulties." Li Banxian cried in a hurry, trying to struggle for the last time.

However, his prestige has long been gone. Who will listen to him.

Soon, a group of people went to the south of the village. When they got there, they dug up the living Bodhisattva. When they dug up the ground, they could not help but be surprised.

They quickly carried the statue of Bodhisattva and all the excavated objects to Zhou Dasheng's courtyard in public.

When people saw the statue of Bodhisattva and a large number of soybeans with long sprouts, they seemed to understand something. Many experienced rural women suddenly explained it to everyone, and the whole village understood it.

And the girl from m country asked, "Xu, what's going on?"

Xu Lang replied with a smile: "ha ha, it's actually very simple. After soybean sprouts, the sprouts are very vigorous. It's just the so-called" many people have great power ". The power of several kilos of soybean sprouts can hold up dozens of kilos of Bodhisattva statues. It seems that the Bodhisattva statues have grown themselves. In fact, it's only Li Banxian who buried the Bodhisattva statues deep in the ground and put them on top of soybean If I expect it to be good, don't the old man often water around the statue? As for the rain in the next few days, it's just a coincidence. It's probably the old man who read the weather forecast in advance. "

After listening to Xu Lang's explanation, people suddenly realized that Li Banxian was indeed a statue buried by himself, and he often watered it to keep people away.

At the thought of this, they were cheated, and each family cheated thousands of yuan. Everyone rushed up and surrounded the Li family and their son, "pay back! Pay back the money

If no one stops this kind of behavior, you deserve to be killed.

And Xu Lang said: "villagers, knowledge is power, not learning cultural knowledge is the root of being cheated. I think the reason why this old man can do so is because his son Li Jinsheng is a chemistry teacher?"

And Li Jinsheng closed his eyes heavily, knowing that everything was over. He abetted his father to play tricks.

Next to Xu Feng, he pulled Xu Lang's coat and said seriously, "brother, you can really pretend to be a B. you know everything, but you only say it at the end. Finally, he said," knowledge is power. "Brother, I sincerely call you brother. How can our Xu family be like you?"

After hearing this, Huo QingChu felt funny, but Xu Lang rolled his eyes and said, "why don't you think this is not like praising others?

And Wang Mingquan's admiration for Xu Lang is just like throwing himself into the ground. He quickly caught Li Jinsheng and Zhou Zhenhua in the police car.

Xu Lang secretly signals to Wang Mingquan to transfer the police officer away from the police car. Then, Xu Lang picks up a brick and flicks at the fuel tank of the police car. He only hears a loud bang. Li Jinsheng and Zhou Zhenhua are blown to pieces.

Li Banxian exclaimed: "son!"

At this time, the common people said: "don't cry, old man. Didn't you say before that they should not be punished by others for their crimes. They should be punished by heaven, Nuo and God. Have they been struck by thunder?"

On hearing this, the old man didn't wake up even though he was angry to death.PS: read this book to let you know more about the positive energy of society. Don't be cheated by charlatans. One of my grandmother's blonde hairpins from the Qing Dynasty was cheated by people with the trick of erecting chopsticks. It's worth tens of thousands of antiques. Writing these chapters is not to teach you how to cheat, but how to prevent cheating. Popular science once, when relaxed, the next wonderful drama will be staged, paved a lot, I hope friends understand.

Today, will complete 5 more, please give me strength, ask for flowers support! 」」