Three days passed in a flash.

For Yu Zhigan, his daily action is to go to the palace to pay homage to his mother, and then implement his own plan to move the palace bit by bit. Until now, a palace has not been completely emptied. If calculated according to the progress of the game, Yu Zhigan has moved about 10% of the palace now, which may be hundreds of thousands or one million away from the embarrassment of the entire palace. There is a long way to go!

In addition, Yu Zhigan went to Whampoa Military Academy to train students. Yu Zhigan underestimated the military level of the Yu Tang Empire, especially the five hundred lieutenants were also among the elites in the army, except that they would feel a little uncomfortable on the first day.

In the next two days, these lieutenants rarely make mistakes. Every word, action, sitting and standing, they all started to have that flavor, and they were very obedient. Yu Zhi had worried that these people would complain that these things were useless before, but it was obvious that these lieutenants obviously knew the importance of these things.

For a strong army, discipline is the top priority. Everyone knows the principles since ancient times, so everyone endured Yu Zhigan's training method. What's more, Yu Zhigan's teaching this time is not just that, but also various famous future experiences are taught.

Compared to the peace in the Whampoa Military Academy, Tsinghua Park is full of chaos. A group of students are very interested at first, but when they start testing, they become worse than death. The data produced by each test is different.

"Li Bai, you just use the test, how about it? Have you tested it?"

Li Bai returned to his seat with a haggard face. Someone next to him immediately came to say hello. Li Bai glanced at Lu Su, and felt like crying: "Brother Lu doesn't know anything. This water is unpredictable and cannot be measured at all..."

“…”

After Yu Zhigan finished breakfast, he came to Tsinghua Park with his lesson plan. He was looking forward to what results could these guys have.

When Yu Zhigan walked into the classroom, he saw a group of guilty faces. Yu Zhigan's face became cold. Could it be that all of these people had not completed their homework assigned by them?

Thinking of this, Yu Zhigan suddenly realized a problem. It seemed that he had a new invention. He probably would be hated by tens of millions of students in the future. Homework has not been done in this era, but he seemed to have accidentally...

Yu Zhigan looked up at the ceiling. Fortunately, there were no historians around him, so his own affairs should not be recorded, otherwise...

"Ahem!!"

He coughed gently, and all the students did not dare to speak, but stood up and saluted Yu Zhigan: "I have seen Your Highness the Prince!"

"No gifts, how are you doing what you told me?"

After hearing Yu Zhigan's words, all the students looked at me and I looked at you, lowered their heads and did not dare to speak. After Yu Zhigan glanced at him, only Lu Su looked confident.

"You guys didn't measure it!"

"Your Highness, we have all measured it!"

"Then hand in the homework, what's your name from!"

"Your Highness, humble duty..."

"Just just talk about me here!"

"Your Highness, my name is Shen Kuo!"

"puff!"

Yu Zhigan almost didn't spit out a sip of water. After looking at this guy, Shen Kuo and Meng Xi Bitan seemed to be the work of this guy.

"That Shen Kuo, have you measured it?"

"Your Highness, it's already measured!"

After Shen Kuo finished speaking, he took a note and was squeaky. Yu Zhigan was stunned after reading it. One cubic meter of iron was only one thousand kilograms? After reading it, Yu Zhigan glanced at the guy: "Did you test it yourself?"

"Yes!"

Shen Kuo was about to cry, and this data was indeed tested by him.

"Where are yours?"

Yu Zhigan looked at the rest of Shen Kuo’s data and skipped it directly. None of the data in it was correct. If the difference was relatively close, Yu Zhigan could tolerate it, but the difference was too far...

"Lu Su brings you!"

"Here!"

Yu Zhigan glanced at the memo sent by Lu Su. Not to mention anything else, this guy is still smart. He chose good things for testing, such as mud, sand and other easy-to-measure things. Yu Zhigan glanced at it. The data was still far behind, but it was not as outrageous as Shen Kuo.

"Li Bai, where is yours?"

Li Bai stood up in a hesitant manner. After Yu Zhi took a look, he almost attacked Li Bai. One liter of water is about one pound, but Li Bai measured this data. One liter of water is about ten pounds. I wonder what water is Li Bai using? Ten times the mass water?

"Forget it, this time it's just a test of your hands-on ability, and it's also my problem. I haven't taught you some measurement standards. Today I'll tell you some basic concepts, cubes, squares, liters, grams, kilograms and other data!"

After saying that, Yu Zhigan took out the things he had prepared before, all of which were made with Zhu Youxiao. The conversion method of Yu Tang Empire was probably in a decimal way, so this group of students could also accept simple decimal things.

However, the more troublesome ones are some uncommonly used units of measurement, such as grams and liters, etc.

"The volume of an object is cubic, while the volume of water is liters!"

"Your Highness, then why is five hundred grams per pound?"

"Because now people are used habitually and will gradually change it later, but it will take decades!"

"Your Highness, if a liter of rice is also liquid?"

"This is a way of using the people. Do you understand scientific research now? These data are for scientific rigor!"

"Okay, I'll give you some simple measurement methods now. Li Bai, please tell me. One liter of water is roughly equal to five hundred grams, that is, water..."

After today's class, Yu Zhigan was dry and had a temper turbulent. Finally, he understood why he was beaten by the teacher when he was a child. It was because he was too naughty and liked to ask questions randomly when he had nothing to do. It would be strange if he didn't get beaten!

However, overall, Yu Zhigan is quite satisfied today. At least he passed on some things, so this group of students can go back and continue to measure. Yu Zhigan can't explain the significance of the measurement, but he can obtain some basic data, which can play a mobile role in future research.

In a month, Yu Zhigan's plan to empty the palace is still being implemented, but the goal is still far away, and the construction of the East Palace is also underway. Yu Zhigan's course today is on the construction site.

"Who can lift this stone up?"

Yu Zhigan pointed to a large stone in the open space not far away.

"Your Highness, the volume of this stone looks at least two cubic meters, or even more. According to the mass tested by some common stones, it must weigh at least four or five tons. I'm afraid that this cannot be lifted by a person, right?"

Cheng Chumo walked to Shi Tou, looked carefully, and came to a conclusion. Yu Zhigan nodded. The teaching results during this period looked good, at least Cheng Chumo knew how to analyze.

Li Bai and others also circled around the stone twice, and the conclusion they came to was similar to Cheng Chumo's. Yu Zhigan breathed a little relieved and just couldn't lift it up. He saw Cheng Xiang and others' martial arts explosion before, and he always suspected that this era was a world of high martial arts, such as the mythical version of the Three Kingdoms, but now it seems that it is not.

"Then I'll test you another question now. How can you lift this stone up? In any way!"

When everyone heard Yu Zhigan's inquiry, they began to think. Cheng Chumo walked along the stone for a while and slowly spoke: "I think my sister Cheng Xiang should be able to lift it up!"

"Shut up!"

Yu Zhigan wanted to slap this guy away with a slap. Cheng Xiang is already pregnant and actually wants Cheng Xiang to move this stone. I don’t know how the word "death" is written, right?

"Have it!"

At this time, Yuchi Yulin's eyes lit up, and then walked to the stone and moved it hard. The stone was still motionless. Yuchi Yulin used a color to Cheng Chumo and signaled to come over to help.

The two of them tried their best to suck. One of them, and without saying anything else, they actually began to shake. Yuchi Yulin shouted: "Chumo, come on, move!"

"good!"

The two of them used all their strength to carry them continuously. Yu Zhigan patted his head hard. He just praised them, but these two fools were so proud.

"Okay, stop. You should learn from me now. You have to use your brain instead of working hard to do things, okay!"

Cheng Chumo and Yuchi Yulin looked at the big stone in front of them and muttered to each other: "You kid must have not tried hard!"

"You didn't use any force!"

"Didn't you say you can move a thousand pounds?"

"This is four or five thousand pounds!"

Yu Zhigan decided not to care about these two fools anymore and let them go. It’s no longer helpful. He would play whatever he likes. He sighed and looked at the rest of the people: “Have you thought of any good idea?”

"Your Highness, I think we can dig some drainage troughs below, then set up a raft, and then dig a river, and..."

After hearing this, Yu Zhi nodded: "You can indeed carry the stones away in this way, but you have not considered the cost of doing so, and how much labor is there?"

Hearing Yu Zhigan's words, Lu Su also closed his mouth and continued to think. At this time, Li Bai's eyes suddenly lit up: "Your Highness, when Caomin was in Chengdu, he saw someone hanging a huge tree with a rope. We can also tie the wood with a rope, and then find a few strong men and lay the rolling wood in front..."

These methods are good, Yu Zhigan nodded with satisfaction: "Very good, at least compared to those two guys, you know that you have used your brain, but your methods are not the most labor-saving method. Let me see how I lifted this stone alone!"

After Yu Zhigan finished speaking, he asked Zhang Zhan to take out the pulley set that had been prepared long ago, and then started to install it. Yu Zhigan had been researching this set of equipment for a while. Two days ago, he encountered some problems in the construction of the East Palace. Only then did Yu Zhigan remember.

A group of students watched Yu Zhigan take out round things and were busy. Many people from the Ministry of Works also came to check to see how the prince solved the problem of this stone.

This stone just blocked some things built by the East Palace. If it was not demolished, it would be difficult to build according to Yu Zhigan's plan. In addition, it would be possible to teach this group of students so that they could know that technology is the primary productive force.

More than ten minutes later, Yu Zhigan watched the assembly of pulley sets one by one, and finally nodded with satisfaction, grabbed the rope with one hand and looked at the other students.

"Do you think that I can pull this stone up with one hand? If you think you can, you will pay five for one, and if you can't, you will pay ten for one, and if you can't, you will bet?"

The students looked at each other, and no one dared to bet. During this period, Yu Zhigan has won a lot of money from them, and they no longer dared to bet easily. Yu Zhigan waved his hand: "Since you don't bet, then let's see how I did it!"

After saying that, Yu Zhigan pulled hard with his hands, and the rope started to operate through the pulley. Then the stone slowly shaking little by little and finally pulled up. Yu Zhigan also struggled a little when he pulled it. There was no way, the equipment was still flawed and the friction was a bit large.

But even so, it was already very amazing. Many people widened their eyes and watched Yu Zhigan easily pull up the stone.

In ancient times, there were pulleys, but this kind of pulley was single and did not form a pulley set like Yu Zhigan. Yu Zhigan's doing this was an innovative invention.

Yu Zhigan pulled the stone up about half a meter away from the ground, and immediately someone filled the wooden rolling wood below and prepared to move the stone away.

After the wood was loaded, Yu Zhigan glanced at the stunned students: "Can you understand the importance of what I gave you?"

Many people's eyes lit up and nodded slowly. Cheng Chumo watched the stone being placed on the rolling wood, and moved it hard again, but found that he could not move it. Then he came to Yu Zhigan and pulled the rope on the pulley set with his hand, and moved the stone easily.

"How is this possible?"

"It's so amazing!" Lu Su opened his mouth wide and looked at the raised stone. Before he could try it himself, Lao Qi came out of nowhere and pulled it hard. Recently, this guy also ran to Yu Zhigan from time to time to listen, as if the steam engine had encountered some bottleneck.

"With this thing, the speed of repairing houses and other things in the future will be much faster!"

Not only the craftsmen around the students, but they all pull things hard together with dozens of people, but now it seems that only one person or a few people may be needed in the future.

Yu Zhi looked at the group of students with a dry smile and waved his hand: "Let's go, go back to school, I will assign homework for you!"

There are actually many things that can be taught, but Yu Zhigan can not teach much. He can only teach with one hoe and one stick in the east. Learning more is the ability of these students to understand.

However, Yu Zhigan believes that as long as you continue to teach, you will bear fruit one day.

"However, if I continue to teach this, I think the possibility of playing with my phone before I die is somewhat low!"

Yu Zhigan looked at a group of students who were whispering in a low voice and sighed in a low voice, Yu Zhigan is not very ambitious, unlike the guy named Ling Ran who wants a bumblebee or changes the world. He just wants to play with his mobile phone once before he dies, even if he just plays with a snake once.
Chapter completed!