Since that day, Wang Xiang showed a hand to condense water into ice and use ice to make fire, Li Shen suddenly became disciplined, and even took the initiative to summon the family of Yue Wangfu to help tidy up the Gewu Academy.

Most naughty children always have a great interest in magical things, which can be seen from Li Shen's slippery eyes, his interest in Gewuxue instantly surpassed Li Zhi, and he became the second curious baby in Datang after Li Zhi. Of course, Wang Xiang would not know that the reason why Li Shen was so keen on Gewuxue was entirely because he felt that this kind of magical method was the best way to trick people, but compared to catching insects, the method of using ice to make fire was obviously much more clever.

On the day when the renovation of the Gewu Academy was completed, Li Er came to visit, and when he saw Li Zhen and Li Shenshi, who were sitting at the table and listening to the lecture, a trace of imperceptible surprise flashed on their faces, and in his impression, these two sons had never been so well-behaved.

After asking, he knew that Wang Xiang was teaching them arithmetic, and in Li Er's eyes, arithmetic was not as good as Gewuxue, so he naturally scoffed, but he didn't expect Li Zhen and Li Shen to learn much skill, as long as they didn't cause trouble outside.

Li Shengang learned a little bit but was in a hurry to show off, and pulled Li Er to make a small request.

As soon as he heard that Li Shen just wanted some flowers, Li Er didn't care, as long as he could be honest and avoid trouble, so he asked Li Shen how much he wanted with a wave of his hand, he had just gotten more than a dozen pieces of glass from Wang Xiang to enrich the inner treasury, and at this time it can be said that he was rich.

Li Shen didn't say how much he wanted, but found the chessboard and said to Li Er: "Father only needs to put one penny in the first grid of this chessboard, two pennies in the second grid, four pennies in the third grid, and eight pennies in the fourth grid, and fill the chessboard." ”

Li Er thought about it and agreed without much, and the final result can be imagined. Li Er left with a gloomy face, and glared at Wang Xiang fiercely when he left, the dignified Emperor of the Tang Dynasty actually lost his trust in Li Shen, a little ghost, because of the copper coins, especially when he saw Wang Xiang standing next to him and looked like he was watching a play, Li Er was even more angry, with his understanding of Li Shen, this law was from Wang Xiang.

Sending Li Erge away suddenly exploded, Cheng Chuliang's goods laughed heartlessly, and the initiator Li Shen did not annoy Li Erhou's consciousness at all, but was triumphant, and asked the prince who else could stump the omnipotent Li Er.

In this way, Wang Xiang's image in the minds of Li Shen and others has become taller.

When the Gewu Academy was opened, Wang Xiang also had to Zhang Luo's manpower to burn glass, and Li Er exempted him from entering the palace every day to study with the queen, and instead entered the palace once every half a month to receive ideological education. Li Zhi conscientiously carried out the spy mission assigned to him by Empress Changsun in the days of Gewuyuan, and once he found out that Wang Xiang had made something new, he would bring it back to the palace as soon as possible, so elementary school mathematics such as the ninety-nine multiplication table was also placed in front of Empress Changsun, and together with the Three Character Sutra, she classified it as the enlightenment course of the prince and princess.

Burning glass is not a stone, Wang Xiang checked the information and is telling the newcomers what kind of stones to collect in the front yard of the Gewu Courtyard, these newcomers are not as pedantic as Wang Xiang thought, but quite clever, a little bit of understanding, which made him overjoyed, originally thought that the person Li Er found was unreliable, but now he thought that he had wronged Li Er.

These people were all transferred by Li Er from Qin Tianjian, and he didn't expect to transfer people from there at first, but he suddenly thought of it after seeing Wang Xiang teach Li Shen arithmetic, and the people of Qin Tianjian are also proficient in arithmetic, and in Li Er's opinion, turning stones into glass and alchemy should have something to figure out, and it can be regarded as a crooked hit.

Yuan Tiangang was also very curious about Li Er's newly established Gewu Academy, especially when he heard that the Gewu Academy's judgment could condense water into ice and make fire with ice, this kind of magical method has always belonged to Qin Tianjian alone, but now there is a Gewu Academy, so he personally sent Li Er's people to the Gewu Academy.

Yuan Tiangang is over the age of old, his beard and hair are all white, and he is wearing a seven-star robe, which really feels a little like a mortal immortal.

"Master, you've been sighing since just now, could it be that this prince is really so special?"

The one who asked was the middle-aged man standing next to Yuan Tiangang, with starry eyebrows and sword eyes, and he was extraordinary, it was Yuan Tiangang's most proud disciple Li Chunfeng, Li Chunfeng was quite puzzled when he saw Yuan Tiangang's sigh again and again, and he didn't think there was anything wrong with Wang Xiang's face.

Yuan Tiangang shook his head and muttered, "This son should have died a long time ago......"

Li Chunfeng was shocked when he heard this: "Master, this person is full of heaven, and there is purple qi rising between his eyebrows, he is a rich and noble person, why did he die early?" ”

"Chunfeng, the teacher has already told you that you can't just look at the appearance of the surface, and you should carefully quiet his essence."

Li Chunfeng was slightly ashamed after hearing this, looked up at Wang Xiang again, and exclaimed after a while: "Luck Technique!" It turns out that this face is not his original face, but it seems to be a stormy luck! ”

Yuan Tiangang signaled Li Chunfeng not to make a fuss: "This son's face is far from being so simple, and he can't see it through as a teacher, so let's go over and talk to him first." ”

In fact, Wang Xiang had long noticed the two Taoists standing at the door, but when he heard the names of the two of them, he couldn't help but feel a sudden feeling in his heart, the shadow of the bark man of the tree, the mystery left by Yuan Tiangang and Li Chunfeng in history is too strong, and the push back picture co-authored by the two is even more legendary.

"How did the two Dao Masters come to my place?"

Yuan Tiangang saw that Wang Xiang's nervousness was even more suspicious, but his face did not show it at all, he smiled and said gently: "Your Majesty's new Gewu Academy and my Qin Tianjian have transferred some people, and Poor Dao sent them over. ”

Wang Xiang suddenly realized: I said that these people are extremely clever and quite proficient in arithmetic, it turns out that they are all from Qin Tianjian, this old Taoist will not come to me because I dug a corner, right?

"There is no need to worry too much about the judgment of the royal court, Your Majesty's new Gewu Academy lacks manpower, and the superintendent of Qintian should help."

This old man knows what I think? Wang Xiang is even more weak-hearted, he shouldn't be able to see anything, my brother never believes in fortune telling.

"I heard that the royal court sentenced that it can condense water into ice and make fire with ice, so my apprentice and I came here to ask for advice."

Yuan Tiangang was so polite, Wang Xiang didn't dare to really hold it up, and hurriedly said: "It's all some little tricks of Gewuxue, how can it be compared with the great magic power of the Taoist." ”

Yuan Tiangang smiled when he heard this: "I haven't learned any great supernatural powers in the Poor Dao for decades, so I'm really ashamed. ”

The three of them were talking, Cheng Chuliang and Tie Dan came back with a big bamboo basket, followed by Li Zhi and a few little ghosts, all with excited expressions, only Li Huiming didn't seem to be too enthusiastic, drinking the juice from Wang Xiang's mansion and followed slowly, this guy was not very interested in Gewuxue.

"Let's go, let's go!" Seeing Wang Xiang and Yuan Tiangang blocking in front, Li Shenxuan stepped forward and shouted.

Yuan Tiangang stepped aside and asked curiously, "What are they?" ”

Wang Xiang smiled helplessly: "His Royal Highness King Yue and His Royal Highness King Ji are energetic, and they can't be idle for a moment, so I found something for them to do." ”

Yuan Tiangang and Li Chunfeng both smiled knowingly, Li Zhen and Li Shen also knew their temperaments, but they didn't expect both of them to come to the Gewu Academy, but they were afraid that this Gewu Yuan would not be peaceful from now on.

"I don't know what the royal court has found for them to do, which makes them so excited."

"Flying."

"Flying?" Yuan Tiangang and Li Chunfeng glanced at each other, and they both saw the surprise in each other's eyes, could it be that this prince really has the ability to be unpredictable, and he has not yet figured out the means of condensing water into ice and making fire with ice.

"How can a human being be a bird or a bird fly?" Li Chunfeng asked the doubts in his heart.

Wang Xiang smiled and said, "In fact, it's not only birds and sparrows that can fly. ”

"What else is there?"

Wang Xiang was about to answer Li Chunfeng's question, but he heard Li Shen shout: "Wang Jiancheng, you come to see if Brother Jiu is right." ”

"The two Dao Masters might as well come with me to have a look, and then you will know what else can fly into the sky."

"It's ...... Kong Ming lantern? Li Chunfeng seemed a little unsure, because this Kong Ming lantern was too big.

"Yes, it's Kong Ming Lantern."

Yuan Tiangang said thoughtfully: "Could it be that you plan to use this thing to carry people into the sky?" ”

Wang Xiang shook his head and said: "This is just an idea, in fact, it is not only Kong Ming lantern that can carry people, if you magnify the paper dove several times, you can also do it." This is only the first experiment, so naturally it will not be manned, but it is not impossible to fly manned when the experiment is mature. ”

"Can you think that this method is also very rare, is this the science of things?"

Hearing Yuan Tiangang's words, Wang Xiang said with a smile: "Gewuxue pays attention to the truth through experimentation, and everything in life can always make amazing discoveries as long as you think more, experiment more, and summarize more." Success comes from thoughts, and ideas come from life. ”

"Success comes from thoughts, and ideas come from life. There is some truth to this. ”

Wang Xiang smiled slightly: "The reason why the paper dove is made into a bird-like shape is because the bird can fly, and the reason why the Kong Ming lantern is made into this shape is because the bird can fly. ”

The more Yuan Tiangang listened, the brighter his eyes became, this theory of multiple experiments and summaries was quite similar to Qin Tianjian's concept, but it was more profound than Qin Tianjian.

"Then the royal court judgment can figure out why the bird and the bird can fly?"

After Wang Xiang inspected the large Kong Ming lantern assembled by Li Zhi, corrected a few imperfect places, and said with a smile: "I found a little." ”

In view of the curiosity of Yuan Tiangang and Li Chunfeng, Wang Xiang told the idea of air buoyancy again, and Yuan Tiangang quickly understood the truth, and exclaimed: "The judgment of the royal court is really exquisite, it seems that condensing water into ice and making fire with ice is really a means of Gewuxue." ”

Wang Xiang smiled noncommittally, summer is coming, and he is still counting on making some money by means of ice making, of course he will not tell the method, even Li Zhi and they don't know how to condense water into ice.