The small courtyard where Xu Jin lived was located near the corner gate on the west side of Prince Xing's Mansion. It was very convenient to enter and exit the Prince's Mansion.

Early this morning, Erniu and Dabao followed Xu Jin's request and moved bricks and stones to build a simple stove in the yard, then set up an iron pot and got some dry firewood for the fire.

Everything was ready. Xu Jin and Xie Xiaowan were eating breakfast in the room. Zhu Houcong hurried over with Lu Bing and accompanying eunuch Huang Jinxing. Before anyone could enter the room, they shouted in: "Sister Xiaowan, Xu Jin..."

!”

Xu Jin didn't want to pay attention to this kid, but when he saw the two girls in palace clothes following Zhu Houcong, he couldn't help but be quite surprised. He quickly stood up and saluted: "Xu Jin has met His Royal Highness the Crown Prince and the two princesses!"

Xie Xiaowan also quickly stood up and gave her a blessing.

"Uh... you don't have to be polite!" Zhu Houcong waved his hand. Princess Yongfu and Princess Yongchun behind him returned the gift with a blessing. The former's expression was obviously a little shy, and he lowered his head slightly and did not dare to look at Xu Jin.

Xu Jin took a look at Zhu Xiuning, the princess of Yongfu County, and couldn't help but be slightly stunned. A description naturally emerged in his mind: When he is quiet, he is like a delicate flower shining on the water, and when he moves, he is like a weak willow supporting the wind.

For example, Xizi wins by three points.

It is said that although Xu Jin saved Princess Yongfu a few days ago, the latter's trachea was blocked by peanuts at that time. Her face turned purple from holding it in, her mouth was open, and she rolled her eyes. There was really no sense of beauty at all. And afterwards, Xu Jin

To avoid suspicion, I didn't take a closer look. After chatting for a few words, I hurriedly left. Only then did I truly see the true face of Princess Yongfu.

Just imagine, even her younger brother Zhu Houcong looks so "monstrous", how can Princess Yongfu's appearance be any different as the sister of one of his siblings? There is no doubt that Princess Yongfu can be regarded as one of the best little beauties in the world.

Whether it is the shape of the face or the frail and weak temperament, Xu Jin reminds Xu Jin of Lin Daiyu in the 1987 version of "A Dream of Red Mansions".

However, Princess Yongfu was very beautiful, but Xu Jin really didn't like this kind of sick beauty, so he looked away after taking a look.

At this time, Zhu Houcong reached out unceremoniously and took out a meat bun from the plate. While eating, he said: "Xu Jin, Yongfu and Yongchun heard that you are going to perform tricks today, so they also want to come and have a look. Is that okay?"

"

Xu Jin smiled and said: "Of course there is no problem. Strictly speaking, I am going to give a physics lesson to His Royal Highness today."

Zhu Houcong finished the meat buns in two bites, clapped his hands, and said enthusiastically: "Then what are you waiting for? Let's start quickly."

"Your Highness, the two princesses, please follow me!" Xu Jin said and brought everyone to the courtyard.

When she saw the big iron pot on the stove, Princess Yongfu couldn't help but glance at Xu Jin in surprise. Little Loli Yongchun wrinkled her nose and said: "Xu Jin, are you getting a big iron pot for cooking?

, I don’t want to see this, I’m here to see a magic trick.”

Xu Jin smiled and said: "Princess Yongchun calm down for a while, I will perform a trick of washing hands in a frying pan later."

Princess Yongchun's eyes lit up, she clapped her hands excitedly and said, "Did you boil the oil and then put your hand into the pot to wash it?"

Xu Jin nodded and said: "Exactly!"

Princess Yongfu suddenly lost her beauty, but Xie Xiaowan and Yue'er reacted calmly, because they had witnessed Xu Jin's rehearsal a few days ago and knew the principles behind it.

Zhu Houcong said doubtfully: "Xu Jin, are you kidding me? Boiling hot oil is no small matter, and it can't be done without magical power to protect the body."

Lu Bing nodded and said: "Daozhang Zhang in the mansion is a Taoist. His Taoism is so profound that he can fish out copper coins from a boiling oil pan. Could it be that Mr. Xu, your Taoism is as good as Taoist Zhang?"

Xu Jin was moved in his heart and asked: "Taoist Zhang has performed in public the performance of fishing for copper coins in a frying pan?"

Zhu Houcong nodded in awe and said: "Taoist Zhang did perform a performance of fishing for copper coins in an oil pan in front of his father. Xiao Luzi and I were also present at the time and saw it with our own eyes. After the oil in the pot boiled, Taoist Zhang put a line on his arm. Then he reached into the oil pan and picked up two copper coins. Later, Taoist Zhang also threw a pig's trotter into the oil pan, and the pig's trotter was quickly fried to a golden color."

Xu Jin sneered in his heart, Fu's magic power was just a deception, and the truth behind it was actually worthless.

Because Xingwang Zhu Youji believed in Taoism, Zhu Houcong had been influenced by Taoism since he was a child. This was also the root of his obsession with Taoism and alchemy in the future. Therefore, Xu Jin spent this time thinking about how to correct Zhu Houcong's ideas to prevent him from going astray in the future. .

It happened that the incident with Princess Yongfu a few days ago gave Xu Jin an opportunity, so Xu Jin planned to take advantage of this opportunity to strike while the iron is hot and give Zhu Houcong a physics lesson to make him realize that the so-called "supernatural powers" are all deceptive tricks. .What Xu Jin didn't expect was that Taoist Zhang had also shown similar "Taoist methods", which was exactly what he wanted.

At that moment, Xu Jin didn't waste any time and immediately ordered the two oxen to light a fire and collect firewood.

Soon, the oil in the pot began to boil, and the rolling heat steamed up, which looked quite scary. Xu Jin took out two copper coins and threw them into the boiling oil pot, then rolled up his sleeves and calmly put his hand into the oil In the pot.

"Ah!" Yongfu and Yongchun were so frightened that they covered their eyes and did not dare to look. Zhu Houcong and Lu Bing also turned pale and their eyelids trembled.

However, the expected screams did not sound, and Xu Jin easily picked up the two copper coins from the bottom of the pot.

Yongfu and Yongchun removed their hands from covering their eyes, their mouths opened in an "O" shape in shock, and they looked at Xu Jin's hand in disbelief.

Zhu Houcong rubbed his eyes vigorously, stretched out his finger and poked Xu Jin's arm to confirm that it was not cooked, and then said with lingering fear: "Xu Jin, why wasn't your hand burned?"

Xu Jin threw the copper coins in his hand back into the oil pan and said with a smile: "Your Highness, would you like to try it?"

Huang Jin, the accompanying eunuch, immediately said in a sharp voice: "Master Xu, you must not do this. His Royal Highness is a rich man, so how can you put yourself in danger? If something goes wrong, neither you nor I can afford it."

Zhu Houcong glanced at the boiling oil in the pot, with a trace of fear flashing in his eyes and a look of hesitation on his face.

Xu Jin didn't force himself and said to Er Niu, who was lighting the fire next to him: "Er Niu, come here!"

"Okay, Master!" Erniu stood up with a smile, put his hand into the oil pan, and fished out the two copper coins in the pot with ease. His arms were only slightly red, but were not burned either, and he hummed triumphantly. Said: "Your Highness, you are too timid. In fact, you are not hot at all."

Zhu Houconjun's face turned red, he was laughed at by Dashaniu, he couldn't bear it!

"Silly cow, if you dare to underestimate me, I will touch it for you to see!" Zhu Houcong said and suddenly put his hand into the oil pan.

"Ah!" Yong Fu Yong Chun exclaimed again, and the young eunuchs Huang Jin and Lu Bing were so frightened that their faces turned pale.

"Eh...it's really not very hot!" Zhu Houcong put his hand into the boiling oil and was surprised to find that the boiling oil was really not very hot and was completely bearable.

Zhu Houcong withdrew his hand and said in surprise: "Haha, it's really not hot. Xu Jin, what's going on?"

Xu Jin was about to explain, but he saw Princess Yongchun rolling up her sleeves and actually wanted to reach into the oil pan. She quickly stopped and said: "Princess, no!"

Only then did Yongfu react and hurriedly pulled his sister. Yongchun blinked and said in confusion: "Xu Jin, it's okay if the second brother touches me. Why can't others touch him? Could it be that you just passed your magic power to the second brother?"

elder brother?"

Xu Jin was a little funny and explained: "Because the oil hadn't boiled just now, but it has boiled now." After saying that, he broke an egg into the oil pan and heard a sizzling sound, and the egg was instantly burned.

Cooked.

The expressions of Zhu Houcong and Princess Yongfu changed greatly, and the little Lolita Yongchun was so frightened that her face turned pale and she took a few steps back.

Zhu Houcong chuckled and said: "Xu Jin, what...what's going on? It was obviously not very hot when I touched it just now."

"It's very simple, because rice vinegar is added to this pot of oil."

"Rice vinegar?" Zhu Houcong scratched the back of his head in confusion.

Xu Jin smiled and explained: "This is the physics lesson I gave you today. The density of rice vinegar... Well, let's put it another way. Rice vinegar is heavier than oil. When the two are mixed together, the rice vinegar will sink to the pot.

At the bottom, the oil floats on the top, so at first glance I just think it is all oil.

However, the boiling point of rice vinegar is much lower than that of oil. In other words, rice vinegar can be boiled at a very low temperature, turning into steam and floating up, causing the oil on top to roll and boil. It looks like the oil has been boiled.

It’s boiling, but actually the oil hasn’t been boiled yet.”

Princess Yongfu and others seemed to understand what they heard. Zhu Houcong had already gained a considerable foundation by listening to Xu Jin's lectures these days, so he understood it immediately. He suddenly said: "No wonder he smelled a vinegar smell. Then he was oily."

Is it getting hot because the vinegar at the bottom of the pot is burned out?"

Xu Jin couldn't help but secretly praise that this kid was quite smart and knew how to draw inferences from one instance to another. He nodded and said, "That's exactly it!"

Zhu Houcong suddenly became interested and immediately asked Erniu to pour out the hot oil in the pot. Then he tried it by adding rice vinegar and oil himself. He found that it was just as Xu Jin said. He couldn't help but danced with excitement and laughed: "That's it."

, Haha, I can use this trick to scare people from now on."

Xu Jin said calmly: "How about I perform another trick for His Royal Highness?"

"Change quickly." Zhu Houcong urged happily after hearing this.

Xu Jin turned around and walked back to the house, and everyone quickly followed in. Xu Jin told Yue'er to bring up a prepared basin of brine and place it on the table.

Xu Jin took a bamboo chopstick, soaked it first, and then slowly inserted the head and tail into the water. After it stabilized, he slowly released his hand, and the bamboo chopstick miraculously stood upright in the water.

This trick is the most common trick used by folk witches and magicians - to stick chopsticks in the water. For example, if a person has a headache and seeks treatment from a witch, the witch will say that he has encountered an evil spirit, and then try to stick chopsticks in the water while calling the ancestors of the patient's family.

When the name of an ancestor is called and the chopsticks just stand up, it means that the ancestor's ghost is causing trouble, so the goddess will raise the kitchen knife and shout to scare the evil spirit away, and the chopsticks will fall down immediately.

If this trick of "standing chopsticks in water" is combined with a vivid performance, it is indeed easy to fool the audience, but in fact it is just a simple mechanical phenomenon. With a little practice, anyone can do it.

"Xu Jin, what's going on? Please teach me!" Zhu Houcong looked at the chopsticks standing upright in the water and said with great interest.

Xu Jin explained with a smile: "This is actually simpler, because after the bamboo chopsticks are soaked in water, the surface is sticky, and the sides are supported by the water. As long as the balance is balanced when placed in the water, it can stand up, especially if it is dense.

Brine with strong viscosity is easier. Your Highness, you can try it!"

Zhu Houcong followed Xu Jin's instructions and tried several times, and finally succeeded in putting the chopsticks up the fifth time. Xie Xiaowan saw it interestingly and tried it too, and succeeded three times.

Upon seeing this, Princess Yongchun also clamored to try. The little loli was obviously very lucky, and she succeeded in two attempts. She was so excited that she screamed and jumped. In the end, Princess Yongfu couldn't help but give it a try, and she succeeded in the same three times.

, he couldn't help but look at Xu Jin in surprise.

Xu Jin smiled and said: "So, all phenomena in the world have their reasons. When you don't understand the reasons, you will feel very magical and incredible. But if you understand the reasons, there is nothing mysterious about it.

Let’s face it, the so-called Taoist and magical powers are just deception.”

Princess Yongfu lowered her head in deep thought, obviously savoring Xu Jin's words.

Zhu Houcong also fell into deep thought, and his expression gradually became unnatural. Since fishing for copper coins in the oil pan is just a trick, isn't Taoist Zhang's so-called Taoist magical power fake? In other words, the so-called Taoist power he refined

Isn't the elixir also a useless fake medicine? No wonder my father took so many elixirs and they were useless. My father died young when he was only in his forties. Could it be because of...

The more Zhu Houcong thought about it, the uglier his face became, and he said in a deep voice: "Sister, don't take Taoist Zhang's elixirs again!"

Princess Yongfu nodded and remained silent, but her eyes quickly glanced at Xu Jin. Although she was not in good health, she was a clever and intelligent girl. At this time, she finally understood the so-called physics lesson that Xu Jin taught her brother today.

The reason for the class.

Xu Jin smiled calmly in his heart. As the saying goes, hearing is false and seeing is believing. Some things, if you explain them in a thousand sentences or ten thousand words, it is not as convincing as practicing them yourself.

It was obvious that his hard work in today's physics class was not in vain. Zhu Houcong had realized that the so-called Taoist magical powers were a lie.

Of course, it is not that easy to completely change a person's ideas formed since childhood. From the fact that Zhu Houcong did not immediately order people to drive Taoist Zhang away, it can be seen that this boy still has "illusions" about Taoism.

However, Xu Jin is not in a hurry. Everything is not accomplished overnight. Only constant quantitative changes will lead to qualitative changes. Zhu Houcong has now doubted the Taoism. It is like taking a vaccination and possessing antibodies. He will probably not be addicted to it in the future.
Chapter completed!