Datang: I am so happy to marry a disfigured princess!

Chapter 198 What Li Chunfeng wants to do

At night, in the Lin family courtyard, Li Chunfeng came to visit specially.

Lin Heng was discussing the follow-up approach with Cheng Huaiyi and others, which was roughly how to monitor these Japanese people, send manpower to monitor in various places, and follow up and monitor the information output channel discovered by Cheng Huaiyi and others.

"Consort Lin? Oh, there is also Consort Cheng and General Yuchi. We met them both today."

Seeing Li Chunfeng, Lin Heng also stood up and said with a smile: "Li Chengwu, you're fine. Is it possible that you should just tell me this?"

Li Chunfeng shook his head: "It's not about this, but I found some interesting things in this arithmetic book, so I came here to ask about it."

Cheng Huaiyi and Yuchi Baolin on the side laughed and said: "I can't believe that the famous Li Chunfeng will also come to ask Brother Lin for something. Being brothers with Brother Lin is so honorable!"

Li Chunfeng also smiled: "I am just serving His Majesty in the palace thanks to the emperor's favor. You are not famous, but the two of you are famous far and wide."

Lin Heng immediately got up and went to get a chair, and several people immediately lay down comfortably under the old locust tree.

Li Chunfeng said with emotion: "Consort Lin will enjoy it. Once you lie down on this chair, you won't want to talk about anything."

Lin Heng smiled and said, "If Li Chengwu needs anything, just tell him. Anyway, I don't have anything to do now."

Li Chunfeng raised his head and looked at the stars in the sky and said slowly: "Lin Consort, I have been very curious about one thing recently, and that is, are the sun, moon and stars hanging in the sky?"

Qintianjian was a place for stargazing and qi-gazing in the Tang Dynasty. As one of the most famous Taoist priests for stargazing and qi-gazing, Li Chunfeng spent most of his time thinking about this.

So it’s normal to be curious about this matter.

"There is an article in Xunzi, which is about the stars rotating with the sun and the moon, illuminating the Yin and Yang in the four eras of great changes. I have read this passage many times, and I feel that the way of the saints today does not seem to be able to explain this matter. Very clear."

Hearing this, Lin Heng smiled and said: "The sage said that the sky is round and the earth is round. Li Chengwu is right to think there is a problem."

He then pointed at the stars: "Since Li Chengwu is a prisoner in Qintian Prison, he naturally knows that the movements of these stars are regular. The seasons of spring, summer, autumn and winter are actually different."

Li Chunfeng nodded: "There are professionals in Qintian Prison who keep records. It is true, but the positions after a year's operation are almost the same."

"If we explain them based on the round sky and the square place, it means that the stars outside actually revolve around this round sky, so there are rules."

"Based on the time it takes to make one revolution in one year, for example, it is 360 five days, which is what we call a year."

Li Chunfeng laughed and said: "But if this is the case, the journey of the sun and the moon cannot be explained. Perhaps it can be said that the sun rotates faster than the stars, but the different positions of the sun in the four seasons are difficult to explain."

The ancients' understanding of this was limited to science and technology and research techniques, so it was difficult to truly discover its true laws.

After listening to this, Lin Heng said slowly: "Is there a possibility that it may not be these stars that are rotating, but the place where we are sitting that is constantly rotating?"

Li Chunfeng raised his eyebrows: "How do you say this?"

Lin Heng immediately began to give examples: "Suppose we don't explain it according to the current teachings of sages, and the Tang Dynasty is not the center of the universe."

"For example, what we revolve around is the sun."

"Suppose the place we are in is a sphere. We live on this huge sphere and revolve around this hot sun. If we are far away, we will be winter. If we are close, we will be summer. According to the distance The temperature of the season on the sphere where I am is different, thus producing the four seasons.”

"And the sphere that is revolving around the sun is also rotating. It rotates in exactly twelve hours a day."

"This means that, normally, our day and night are divided in half, thus forming day and night."

Hearing this, Li Chunfeng frowned.The words Consort Lin just said will probably be scolded by the literati if they are spread out!
However, his mind was still constantly moving closer to the direction described by Lin Heng.

The sphere revolving around the sun is constantly rotating...

Cheng Huaiyi on the side heard this and twitched his lips in disdain: "That's wrong. The Tang Dynasty is the center of the world, and the Tang Dynasty is the most powerful empire in the world."

This was true, and Lin Heng did not refute it. After all, in this era, if he came up with the theory of revolution and rotation, not many people would believe it.

The exact amount requires a lot of mathematical knowledge to verify and calculate. The lack of basic mathematics means that this theory cannot be verified by scientific methodology, and it cannot become the truth.

Li Chunfeng pondered for a long time, then raised his head and asked, "If this is what Consort Lin said, then is the time when the sun illuminates this huge sphere different?"

Lin Heng nodded: "That's the truth."

Li Chunfeng smiled and waved his hand: "How is that possible? Isn't the time of dawn the same everywhere? Besides, how big is the area of ​​the sphere to make the time of dawn different?"

Lin Heng rolled his eyes. If you explain it this way, no matter how small a sphere is when it faces the sun, one side is in shadow. If it rotates, it will definitely be exposed to light for a different time, but it will be different depending on the difference in rotation. That’s all.

If you say that, then you won’t talk about science for a long time.

Seeing that Lin Heng didn't say anything, Li Chunfeng also suppressed his smile.

This kind of explanation can be explained if one ignores the way of the sage.

But the world doesn't revolve around the Tang Dynasty?
This shook Li Chunfeng's understanding.

He thought he knew a lot, and there was no end to what he could learn. Lin Heng's attitude of not explaining anything at the moment also made him doubtful.

This kind of thing can be verified, right?

If it is only in Chang'an, there is definitely nothing we can do. If it is farther away, will there be some differences from Chang'an to Jiangnan?

If it is true, then I am afraid this statement can be confirmed.

At that moment, Li Chunfeng was thinking about this and hurriedly stood up.

"Consort Lin, I want to investigate this matter for a while first. If I have any questions, I'll ask again."

Lin Heng stood up and cupped his hands and said, "Then I'll send you off so far."

After leaving the Lin family, Li Chunfeng couldn't help but think about Lin Heng's words.

In today's terms, Lin Heng's explanation is actually a bit ridiculous, but it seems credible.

As long as the method is confirmed, the result will be known.

Being exposed to light means that the sunrise time is different, right?

Then send people to the Taishan area in Shandong, which is the easternmost part of the Tang Dynasty in name, and record the time.

Since then, Li Chunfeng has been immersed in this research.

(End of this chapter)