People in Datang have been expelled from school

Chapter 350 Your Majesty Urges
After Li Zhi entered the academy, Daniu and his children led him.

After the class at the academy was over, Li Zhi returned to the stables and pestered Li Zheng who was cooking, "Li Zheng, Big Brother said that light can be refracted."

Li Zheng nodded slightly, "It has always been refractable."

Li Zhi asked again: "Then why is the scene reflected behind the small hole reversed?"

While cooking the fish soup, Li Zheng explained: "That is the small hole imaging, and the other is the refraction of light. These are two problems."

Li Zhi continued: "Brother Big Niu is so powerful."

Li Zheng brought out a bowl of fish soup, put it on the table, and then cooked braised pork.

Daniel should have seen the small hole imaging course, which is indeed written in his own book.

Li Tai came back at the meal time, every time he came back, Li Tai was covered in sweat, and he was willing to sit down to eat after taking a shower.

After the meal, Li Zheng explained to Li Zhi why the pinhole imaging was reversed.

Draw a circle on a piece of paper to represent the small hole, and Li Zheng drew a diagonal line and said: "His Royal Highness, first of all, the light is irradiated in a straight line. If you want the light to refract, you need a condition for optical refraction. Then the small hole There is no refraction condition after the imaging light passes through the small hole, or is it a straight line?"

Li Zhi nodded ignorantly, "I understand a little bit, the straight line and the straight line are intersecting."

Li Zheng drew another line, from the footsteps of the portrait through the small hole, slanting upwards, "So the portrait will be turned upside down, and the light does not meet the conditions of refraction, so it is also a straight line in the small hole."

"I understand now." Li Zhi nodded.

Sitting at the side, Li Tai asked, "Then how to refract the light?"

"Mirror and water." Li Zhi replied immediately, "Brother Big Niu told me."

Li Zheng squeezed Li Zhi's chubby face and said, "His Royal Highness Jin Wang has studied well."

That night, Li Zhi had already fallen asleep. Seeing Li Zheng sitting by the stables looking at the starry sky, he stepped forward and asked, "Can't you sleep?"

Li Zheng said with a melancholy face: "His Royal Highness, when do you think your father will give me the salary?"

Li Tai really didn't want to answer Li Zheng's question, he thought to himself when the emperor will give you Li Zheng's salary, how would I know, you, Li Zheng, are so rich and still short of those salary?
After coming to the hut to relieve himself, Li Tai washed his face again.

Li Zheng would often look at the starry sky in a daze.

Li Tai has become accustomed to such things.

Sitting next to Li Zheng, Li Tai said, "Do you like stargazing at night?"

"Does His Royal Highness King Wei want to watch it together?"

Li Tai looked up at the stars in the night sky, "What do you mean by such astrology?"

Li Zheng shook the folding fan in his hand and said: "It means that the Tang Dynasty will be prosperous in the next hundred years."

"Really? That's great."

It seems that this sentence is very useful to Li Tai.

Li Zheng went on to say: "His Royal Highness, do you know? No matter how the world changes, the stars all over the sky will not change for a long time. You see, the moon will accompany us for many, many years, thousands of years, even It's ten thousand years."

The eternal starry sky?Li Tai looked at Li Zheng in surprise, "Li Zheng, are you trying to comprehend the great way of heaven and earth?"

Li Zheng smiled disdainfully, "If you can understand the Dao of heaven and earth by looking at the night sky, all astronomers in the world should become immortals."

"What is an astronomer?"

"His Royal Highness King Wei can be understood as one of the hundred schools of thought."

Li Tai looked suspicious, "Is there such a family among the hundreds of scholars?"

"Maybe." Li Zheng nodded.

"Why has the king never heard of it?"

"Because they are very low-key." Li Zheng turned his head to look at Li Tai, "Is His Royal Highness King Wei still not going to bed? Tomorrow morning we have to go to the construction site to build roads."

Seeing that Li Zheng was unwilling to say more, Li Tai went back to sleep.

Li Zheng still looked at the stars all over the sky. The ancient night sky was very beautiful and very clean.

The horse in the stable snorted, and the snores of Li Tai and Duhu could be heard in the distance. Li Zheng lay on the recliner and turned over to go to sleep, so he had to hurry up and make the sofa.

When he woke up the next day, Li Zheng felt that all his bones were rebelling. This was the consequence of sleeping on the chair.

Seeing Li Zheng walking with his back supported, Du Hu hurriedly said, "General Zhonglang, what's wrong with this?"

"It's nothing." Li Zheng said to Dahu: "It's just that I didn't sleep well last night, and it will be much better if I move around for a while. Have you fed the horse?"

"It's already been fed." Dahu said.

When Wang Ding came to Jingyang again, Li Zheng knew that Li Shimin couldn't wait any longer.

"Eunuch Wang, please sit down quickly." Li Zheng said invitingly.

Wang Ding sighed with emotion, "The county lord, the county lord, there has been no news for the three months we agreed, so His Majesty will have to wait."

"Isn't it too late?" Li Zhengman said indifferently.

Wang Ding said, "There are still ten days."

"Ten days is a day, and it must be done." Li Zheng patted his chest and said, "It's not easy to make a three-edged thorn without a compound bow."

"Simple..." Wang Ding put down the teacup in his hand, "Since it's easy for the county lord, why do we have to keep procrastinating."

Li Zheng poured another cup of tea for Wang Ding and said, "Do you think I'm smart, Eunuch Wang?"

Wang Ding nodded, "You are very smart."

"That's it." Li Zheng continued: "Then dare to ask Wang Gonggong how much is five plus seven plus eight plus nine plus ten..."

"It's equal to..." Wang Ding counted his fingers for a long time and couldn't speak.

"It's equal to 39." Li Zheng said.

"So it's 39." Wang Ding replied, wiping the sweat from his forehead.

"Some things I think are simple and Wang Gonggong thinks simple are two different things. Things that I think are simple, Wang Gonggong must think are not simple, and things that Wang Gonggong thinks are not simple must be simple to me."

Wang Ding rubbed his forehead and said: "The county lord, wait a minute, the old slave is a bit messed up now."

Li Zheng went on to say: "All in all, what I said is that it is easy to make a triangular thorn, but it is very difficult for the prince."

"Is that right?"

"So Wang Gonggong, please go back and report to His Majesty."

It was only half a day after Wang Ding went back, and Li Zheng watched the old eunuch come to Jingyang again.

"Your Majesty, Your Majesty told us to wait in Jingyang until new weapons come out."

Looking at Wang Ding compromisingly, Li Zheng sighed helplessly, "Your Majesty is really impatient."

Wang Ding said: "Your Majesty is very concerned about new weapons."

The old eunuch's smile was indeed a bit piercing.

Wang Ding still said calmly: "Your Majesty, your Majesty wants to hold the imperial examination, but there are many difficulties now. Is there anything you can do about it?"

Li Zheng casually knocked on the melon seeds and said, "What can I do?"

"The prince is sitting here, I will go to the village to have a look." Li Zheng stood up and pointed to a pot of melon seeds on the stone table and said: "The prince is free."

(End of this chapter)