However, there were some words that Xu Lang was embarrassed to ask, and since his cousin liked Huo Qingchu, if he got too close to Huo Qingchu, he would be afraid of making his cousin dissatisfied. Although he had been with Xu Feng for a short time, Xu Lang had already recognized this younger brother. He was sunny and cheerful, generous, and he was somewhat similar to his own personality. It was quite in line with his own preferences. Although he was not a brother, he was a family after all.

His mother is his mother, he is him, Xu Lang believes that Xu Feng has no idea about the things he has done that both humans and gods have done.

Return to the city, find some time, and have a good chat, Xu Lang thought to himself.

Huo Qingchu sat next to him and recalled the experiences over the past few days. Xu Lang once again shocked him. This guy seemed casual and ignorant, but he actually knew so many scientific principles. I don’t know how his brain grew and when he learned these knowledge. Although she learned these simple chemistry knowledge in junior high school when she was in school, she didn’t expect any of them.

Huo Qingchu couldn't help but joke: "Xu Lang, you know so much. Could it be that you have used these tricks to deceive people before? I heard that there is a tradition in the rural areas of the mainland called dancing gods. Some rural old ladies like to play witches dancing gods. How could you not?"

Xu Lang couldn't help but feel funny and hurriedly said, "I'm dizzy, that's what I said."

Everyone burst into laughter.

When Xu Feng saw Sister Chuchu and Xu Lang's intimate look, his expression was strange and he smiled awkwardly, but he didn't think much about it.

The girl from M country looked at Xu Lang with admiration from beginning to end, and kept asking a question. Seeing that everyone was not talking, she felt embarrassed to speak. Now she opened it angrily, and she hurriedly asked: "Sir Xu, can I ask you a question? That oil-pot-wash-hands?"

Annie's Chinese is not very standard, almost popping out one word at a time.

Although Wang Mingquan and other police officers also knew that the so-called "greasing hands in oil pan" must have cleverly used scientific knowledge, they couldn't figure out what kind of scientific knowledge they used. They couldn't help but ask embarrassedly: "Mr. Xu, what's the reason for washing hands in oil pan? Tell us about it."

Although Huo Qingchu is very thoughtful and very smart, some things involve some professional scientific knowledge. For a moment, she really couldn't understand what was going on.

Xu Lang did not keep it a secret and slowly told everyone about the scientific principles.

The secret of "washing hands in the oil pan" is that Li Banxian added vinegar to the hot oil pan. After Xu Lang said this, everyone recalled a detail. When Li Banxian asked someone to add oil to the pot in the stove, a villager accidentally knocked over the vinegar bottle on the stove and fell into the bottom of the pot. After he took it up in time, half of the vinegar had flowed into the pot. In fact, Li Banxian secretly touched the villager and deliberately let the vinegar flow into the oil pan. However, everyone focused on the horrible thing of "washing hands in the oil pan" and did not investigate the issue of vinegar.

Since the specific gravity of vinegar is larger than that of oil, vinegar sinks to the bottom of the pot and the oil floats on it. In this way, what everyone saw and others scooped up when they later verified it was oil, but they could not see vinegar.

After being heated, the vinegar quickly vaporizes, and spreads through the oil layer in the form of a gas, causing the surface of the oil to form a boiling shape like a rolling-off, accompanied by bursts of smoke rising, which is very fooling. In fact, since the oil and fire are still separated by vinegar, the temperature of the oil can only be transferred by vinegar, so it will not boil so quickly. What everyone sees is the effect of bubbles, and the real oil is not hot at all.

Therefore, when Xu Lang asked Huo Qingchu to reach out to the oil pan to get the copper coins, everyone believed that what they saw with their own eyes. With the inertia in thinking, they thought that Huo Qingchu's hand would be injured. In fact, the oil on the vinegar layer was just warm. How could Xu Lang's hand be injured?

The clever thing about the matter is that Li Banxian knew that the pots in ordinary farmers' homes were old pots, so he deliberately chose a large pot with scale that had a long time. According to simple chemical knowledge, the composition of scale is calcium carbide. When calcium carbide and vinegar are heated, chemical reactions will occur, releasing a large amount of carbon dioxide. In this way, a large number of bubbles gushed out from the bottom of the pot, causing the real scene of boiling oil pan.

As for this trick, Xu Lang actually thought of the answer when he listened to the villagers' arguments. When Li Banxian and others carried out the big pot and set it on the fire to grill it, his sensitive sense of smell had already smelled that the pot contained a lot of vinegar and oil, which further verified his guess.

To complete this deceptive trick, one particularly important thing must be paid attention to, that is, the time and heat must be mastered, and it must be taken out quickly. Before the oil on the vinegar layer is heated, otherwise it will be done.

Li Banxian naturally knew this truth, so he repeatedly wanted to start first, but Xu Lang cleverly resolved it. He successfully asked Huo Qingchu to start first and took out the three copper coins inside.

Because that time point is just right, and if someone reaches out, they will definitely be burned because the oil layer has really started to boil.

When Huo Qingchu took out three copper coins, everyone was shocked, which meant that Li Banxian was definitely lying to others, because a girl could "wash hands with oil pan", so Li Banxian had a crisis of trust. In a panic, he actually forgot to start quickly, and he could do it.

At this time, the time for the action had passed, but Xu Lang deliberately sold his favor, saying that as long as he could take out the last two copper coins, he would win, in fact, to make him ask for trouble and try the real oil pan to wash his hands.

Li Banxian naturally did not dare to take action. However, when all the villagers responded to Xu Lang's call, he was unable to make a move. He had no other way except to take action. Then he asked for trouble and burned his palm into a pig's trotter.

After listening to Xu Lang's explanation, everyone realized the truth. Wang Mingquan took the lead in applauding Xu Lang again.

"Mr. Xu, you are really a god. If you hang out in our police station, we may not have any jobs, haha." Wang Mingquan said with a smile.

Xu Lang hurriedly said, "Director Wang, call me my name from now on. You are about the same age as my father. You call Mr. Xu and call him weirdly."

Wang Mingquan knew that Xu Lang was a straightforward person, so he did not refuse and immediately said, "Okay, Xu Lang, then I'm not polite. Your Qinglong Association and the forces of the Peace Group, which were incorporated into the Central Plains, have taken root in the Central Plains. In the future, there will be places that can be useful to me, Wang Mingquan. Just speak, just call, and message, even if it's a look, I will unconditionally obey your orders."

As soon as this statement was made Xu Lang feel strange, the dignified police chief was a little uncomfortable with him.

Alas, is it true that a capable person is the old man? Xu Lang thought in his heart.

However, Xu Lang also knew that in addition to admiring his abilities, Wang Mingquan was also afraid of the power of the Xu family.

The Miss Anne looked at Xu Lang in a daze, and Xu Lang felt a little furious again, and said in a slutty heart: Don’t admire brother, your sister-in-law will hit you.

Soon, the car entered the city area, and Wang Mingquan sent a car to take Xu Lang and others away, and he was going to return to the police station to work.

At this time, Wang Mingquan looked at Xu Feng and seemed to remember something. He couldn't help but exclaim again, "I didn't expect that the two young masters of the Xu family have arrived in Zhengzhou. It's really an honor for me, Mr. Wang! Just give me any instructions if you need anything in the future!"

Xu Lang, Xu Feng and others said goodbye to Wang Mingquan with a smile, and then everyone came to the headquarters building of the Qinglong Society.

When Ma Qilin saw Xu Lang coming back, he saw that Huo Qingchu was indeed with Xu Lang, but without thinking too much, he hurriedly said to Xu Lang: "Honey, your wife and her mother-in-law took a plane back to Jiangdu this morning."

Xu Lang was obviously stunned, "Ah? Why? Why didn't you wait for me?"

Ma Qilin looked at Huo Qingchu and hurriedly said, "Yuruo said that her company still has a lot of work to do, and Qiqi also needs someone to take care of, so she left."

Xu Feng next to him was messy when he heard Ma Qilin's words and couldn't help but say, "Wait a minute, are you my sister-in-law?"

But Anne and George were unintentionally listening to the boring conversations of them, as if they were looking at the surroundings.
Chapter completed!