(2-in-1 chapter)

The next day, "Datang Daily" published an article written by Li Zexuan himself, called "Overview of Astronomy", which is an article to popularize basic astronomical knowledge to the public, in the article, Li Zexuan officially proposed the concept of the solar system to the public, he pointed out that the sun is a star, the earth under our feet is called the earth, it is a planet in the solar system, and there are five planets in the solar system: gold, wood, water, fire and earth, and the planets in the solar system will revolve around the sun!

At the same time, he also pointed out that the time required for the earth to revolve around the sun is about 365 days, which is often referred to as a year, so people can feel the changes of the four seasons in a year; The moon is a satellite of the earth, it will revolve around the earth, and the time required to make a revolution is about 27 days, about one month, so the moon will be cloudy and sunny every month; In addition, the earth also rotates, and the rotation period is almost one day, so people can see the sun rise and sunset, day and night, every day!

In addition, in this article, Li Zexuan also explained to the public the cause of the phenomenon of tengu eclipse of the sun, that is, the moon moves between the sun and the earth, if the three are exactly in a straight line, the moon will block the light of the sun to the earth, and the black shadow behind the moon will fall on the earth, and the solar eclipse phenomenon will occur.

In order to better let readers understand what he said in the article, he also added some simple diagrams of the orbits of the stars, basically as long as you can read and write, you can understand the cause of the solar eclipse after reading it! 、

Finally, Li Zexuan stated that the above content can be observed and proved with the telescope of Yanhuang Academy.

As for why he only proposed the six planets in the solar system (metal, wood, water, fire, earth, and earth), instead of the eight planets, the main reason is that the stars of the other two planets (Uranus and Neptune) are relatively dim, slow to orbit, and are at the edge of the solar system, which cannot be observed by the telescope of Yanhuang Academy, so he can only tell people that there are six planets in the solar system now!

In fact, the ancients mentioned several major planets in the solar system in astrology, and the most important content in celestial observation is "five stars and seven politics". The so-called "five stars" are five planets visible to the naked eye: "Mercury", "Venus", "Mars", "Jupiter", and "Saturn"; The so-called "Seven Politics" is to add the sun and moon on the basis of the "five stars".

Therefore, the concept of the six planets of the solar system proposed by Li Zexuan is still very understandable! Coupled with the telescope of Yanhuang Academy as a supporting evidence, this set of theories is even more convincing!

And Li Zexuan's intention in writing this article is to give the people a preventive shot in advance for the vision of the Tengu Eclipse Day that will appear in two days.

Since ancient times, once there is a vision of the Tengu eclipse sun, it is regarded as a sign that the monarch is faint and the country is about to die, which makes the people panic, Li Zexuan just wants to tell the people in advance that the tengu eclipse is just a normal astronomical phenomenon, and it has nothing to do with whether the emperor is faint or not.

As soon as this article was published by Datang Daily, it immediately caused a huge sensation, the world outside the earth, such as the sky, the moon, and the sun, has always been very mysterious in the hearts of the people, and stars like the moon and the sun have special meanings in many ancient myths and stories, and now Li Zexuan has unveiled the mystery of these stars, and officially put forward the concept of the solar system, which is refreshing at the same time, the people are also shocked!

"What? Is the earth under our feet spherical? And it revolves around the sun? ”

"Look at this picture, there are five planets that revolve around the sun like the earth?"

"Nonsense! It's complete nonsense! How can the ground beneath our feet be spherical? Also, how is it possible for the ground beneath our feet to revolve around the sun? Isn't it the sun that revolves around us? That's why we see day and night! ”

"It can't be said that Yong'an Hou is nonsense! Because according to Yong'an Hou's point of view, we have four seasons of spring, summer, autumn and winter every year, which can be explained! Winter is far from the sun, and summer is close to the sun! A year is a cycle, and it happens to be a revolution cycle! ”

Moreover, Yong'anhou's idea that "the earth can still rotate" is also unique, because if the rotation period of the earth is one day, it can explain why there are days and nights on the earth! ”

These views of Yong'an Hou are convincing! I heard that there is a general Shilang in the Taishi Bureau who uses an astronomical telescope to observe the stars in Yanhuang Academy all day long, if there is no empirical evidence, Yong'an Hou will definitely not dare to say these points with such certainty! Now that it has been said, it must be proven with an astronomical telescope! ”

"That's right! That's right! Yong'an Hou is a celestial scholar, since he dares to say so, and he has so much empirical evidence in his hands, it shows that these are all true! I believe what Yong'an Hou said! ”

"I believe it too! And I finally understood today why there is a tengu eclipse sun, it turns out that the moon is blocking the sunlight shining on the earth! In the past, people regarded the tengu eclipse as a great omen, but now it seems that it is so ridiculous! ”

There are many discussions among the people about Li Zexuan's article, some criticize and doubt, and some strongly support it, and the reason for this is mainly those points put forward by Li Zexuan, the arguments are very sufficient, and they reasonably explain many problems that could not be explained before, and with a few illustrations, it is easy to be convinced!

At this time, Li Zexuan had to be glad that he was an "engineering dog" in his previous life, because the most important thing for engineering students to write papers is clear logic, sufficient arguments and data, and it is based on this rigorous academic quality that he can write popular science articles that are very different from the style of writing in this era, but can well convince most people!

Besides, Li Zexuan put on a posture of "if you don't believe it, come to Yanhuang Academy and see it with a telescope", this strong confidence has to be even more convincing!

Of course, Li Zexuan's high reputation in the folk and academic circles has also played a considerable positive role in it, even if engineering has not been widely recognized and become a mainstream theory, but there are already many people who worship Li Zexuan very much!

With the blessing of various reasons, there are not a few people who believe in Li Zexuan, and since then, the theory of the solar system has been beheaded and successfully executed for the first time in Datang!

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In the Imperial Palace, after Li Er finished the morning court, Zhao Song handed over today's "Datang Daily" to Li Er, because he was also present when Li Chunfeng faced the saint yesterday, so after he saw the article written by Li Zexuan on today's "Datang Daily", he instantly understood Li Zexuan's intentions, and in his opinion, Li Er must also be happy to see this article!

"The solar system? Planet? Solar eclipse? Being said by this kid, it doesn't seem to be a bad thing that dog eating day that day! He wants to reduce the impact of the Tengu Eclipse Day on the people the day after tomorrow, it's really embarrassing for this kid! ”

After seeing the theory of the solar system in the newspaper and Li Zexuan's explanation of the causes of the tengu eclipse, Li Er also understood Li Zexuan's intentions, and he couldn't help but sigh in his heart.

"I ordered Li Chunfeng of the Taishi Bureau to sort out a manuscript of the results he had observed with a telescope in Yanhuang Academy for more than half a year, and publish it in the "Datang Daily" in the name of the imperial court, so that the people could completely believe in Li Zexuan's solar system theory and the explanation of the causes of the tengu eclipse!"

After thinking for a moment, Li Er ordered.

Li Chunfeng borrowed the astronomical telescope in Yanhuang Academy for so long, naturally he wouldn't have found nothing, about the planetary orbit map of the solar system, Li Chunfeng drew a copy as early as the beginning of this year and secretly presented it to Li Er, so now Li Er will not be so surprised when he sees Li Zexuan's theory!

And Li Er was originally not afraid of the folk rumors at the time of the solar eclipse, and he didn't plan to make arrangements in advance to deal with it, but now that Li Zexuan helped him do it, he naturally didn't mind going down the river and providing Li Zexuan with an official evidence, so that more people could believe Li Zexuan's theory!

Zhao Song comprehended: "Oh! Your Majesty! The old slave will go to the Taishi Bureau to pass the decree! ”

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Li Zexuan's theory of the solar system has no small impact at all, and after the news reached the Japanese Mission, the eldest brother Wang of the mountain back seriously read the "Overview of Astronomy" more than a dozen times, and at the end, he couldn't help but sigh:

"Yong'an Hou is really a pedantic celestial, this theory is unheard of, but what is said above is so reasonable and well-founded, it is difficult to believe it or not! When the people of the Japanese Kingdom were still worried about food and clothing, Yong'an Hou had already set his sights on Qiongyu, such knowledge and such a mind, I am afraid that no one in the world can match! If he can be used by the Wa Kingdom, then why can't my Wa Kingdom prosper over the Tang Dynasty! ”

After feeling for a while, he looked at his subordinates and asked, "Ishikawa Kamiki, how is our football team training?" ”

After Yoko Ono died last time, there was one less person by his side who was waiting at any time, and now he was the original head of the guard, taking over Yoko Ono's position!

"Back to Your Highness! The soccer team's recent training progress has been very good! We learned the tactics of the top teams in Datang, and now the cooperation between the players is very tacit, some time ago, we privately competed with several Tang League teams, and all of them won! The subordinates feel that we can fight against the best team in Datang and win! ”

Ishikawa Kamiki was a samurai in his thirties, and although he was not burly, his body seemed to be full of strength, which was not to be underestimated, and at this time, he respectfully reported to the eldest brother of the mountain.

The eldest brother of the mountain, Wang, said with satisfaction: "Okay! As soon as the league of the Datang Football Federation ended, Lone went to ask to see the Emperor of the Tang Dynasty and asked to compete with their most powerful team. If we win, maybe the Tang Emperor will be able to accept our conditions, and in the future, the Wa Kingdom will be able to send students to Yanhuang Academy to learn advanced knowledge! ”

(The term "international student" originated from the Sino-Japanese cultural exchange during the Tang Dynasty in China, which means that Japanese students who stayed in China to study after the Tang Dynasty envoys returned to China, and in modern times, it generally refers to students who stayed abroad to study or research)

This product is really a good calculation, and he has never given up on the engineering knowledge of Yanhuang Academy!

As the so-called bystander Qing, when the Tang people were still fighting each other because of Confucianism and engineering, the outsider of the eldest brother Wang of the mountain back had already seen through that engineering was more practical than Confucianism, and even he faintly felt that engineering could make a country invincible in the world! He very much hopes that the Japanese Kingdom will one day be above all the countries in the world, so his obsession with Li Zexuan and Yanhuang Academy is very, very deep!

But in such a powerful country as Datang, he didn't dare to show his hidden ambition at all, he knew that the most important thing now was to be low-key, forbearing, and developing!

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On this day, in addition to the heated discussion of the solar system theory, a major event also happened, that is, the Bahe Dam finally began to store water!

"Master Hou! All the gates have been closed, and the current water level is 7.5 feet! ”

"Master Hou! An hour has passed, and the water level has risen to ten feet! ”

"Master Hou! Two hours have come, and the water level has risen to twelve zhang! ”

"Master Hou! Three hours have arrived, and the water level has risen to thirteen zhang! ”

Since mid-morning, all the gates of the dam have been lowered, and all the previously built aqueducts have been blocked, and the water level in the upper reaches of the Bahe River is constantly rising.

Listening to the craftsmen's reports again and again, Li Zexuan's heart was not completely relieved because of this, because the water level rose more and more difficult to rise, and the water level of more than ten zhang could not meet the needs of a county in Lantian County at all!

"Chief, there should be some time before the great drought, you don't have to be anxious! In the latter period, as long as there is a rain in the upstream section, the water level of the Bahe dam will easily break through to more than 25 zhang, and it should be enough for the people of Lantian County to use it at that time! ”

Mo Huai saw that Li Zexuan had been frowning, and couldn't help but comfort him gently.

Li Zexuan nodded and said, "Now I can only wait slowly!" Mr. Mo, you are busy first, and I will think about it again when I go back and see if there is any other way! ”

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Day 2.

"Datang Daily" published another article on the theory of the solar system, the difference is that the signature of this article includes the important officials of the entire Taishi Bureau, and the article details the results observed by Shilang Li Chunfeng with an astronomical telescope in the past six months, and its conclusion is completely consistent with Li Zexuan's article yesterday.

As soon as this article came out, public opinion was in an uproar again, because this is basically equivalent to the imperial court standing up for Li Zexuan's solar system theory!

Since then, the theory of the solar system has gained a firm foothold, and the explanation of the cause of the Tengu eclipse can be regarded as an early prevention for the tengu eclipse one day later!

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The second update!

2-in-1 chapter!

Add more to Hans's reward!

-2=9

(End of chapter)