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Chapter 2442 Someone took that step

"Yes, Master, if you can, please give me a roll of maps that is accurate enough to cover the entire universe." Lu Xun thought for a moment and said, "Let me remember it all in my heart and use it in my future life.

To measure and to verify.”

Chen Xi couldn't help but sigh after hearing this. Should he be called Lu Xun? This kind of mentality and this ideal are really lofty. But Yunei, even in later generations, no one really has an accurate map of the entire Yunei, the so-called world map.

It is also worthy of the scope of the current human beings, Yunei, look up at the bright galaxy, that is Yunei.

"Okay, I will use the scale to draw you a map with accuracy and terrain." Chen Xi suppressed his desire for the starry sky and narrowed the scope of the map to the world. In this way, what Lu Xun wanted was not

It was so difficult, and at most a little troublesome, but there was only half a year until his wedding, and Chen Xi still had time.

What's more, after being mentioned like this by Lu Xun, Chen Xi also remembered that while he could still remember the relatively detailed world map, he should combine all the maps in advance to make an accurate and usable map as a reference.

"Thank you, teacher." Lu Xun said with joy. He really wanted to see how huge this world is.

"Well, I'm going to write a greeting note to General Huangfu first, and I'll take you there with me tomorrow." Seeing Lu Xun's expression, Chen Xi smiled and said, "Wait here first, while I go and write a greeting note for you.

My old butler will send it over."

Lu Xun nodded, and Chen Xi went to the study first. When Chen Xi came over again, the stone table was already filled with various snacks. Lu Xun sat on one side with some restraint, while Cai Yan sat on the other side, and Chen Ying

Waiting on the side.

"Well, it's rare." Chen Xi was a little surprised to see Cai Yan appear. To be honest, starting from the year before last, Cai Yan came to Chen Xi less and less. When the second lady had Yang Hu and Yang Hui

After Yu, Cai Yan basically stopped coming to Chen Xi.

"I have some questions I would like to ask." Cai Yan held the tea cup in his hand and said calmly and without any ups and downs, which could be regarded as an explanation to those who were not here.

"What's the problem?" Chen Xi asked in confusion. Generally, Cai Yan would solve problems by himself. In the past, if Cai Yan had any problems, he would seek answers from Chen Xi. Now, there is no need to do so.

"The Molinggan family brought a bunch of things and came to me to ask for an answer." Cai Yan said calmly and coldly.

"Ha, you still do this kind of thing?" Chen Xi said with a surprised look on his face. He had never heard that Cai Yan had a hobby of answering questions. It was a bit strange to collect things to answer questions.

When Cai Yan heard this, he naturally glanced at Chen Xi with his cold eyes. He had no other intention, but it still made Chen Xi a little embarrassed.

Fortunately, before Chen Xi could speak, Cai Yan had already explained to Chen Xi, "It's not that I'm collecting things to give the other party answers, but that I will help others solve some academic problems. As for whether they are standard answers, I can only say

It’s based on my knowledge base.”

"..." Chen Xi has nothing to say. Cai Yan does not seem to have any sectarian views. It is just because of her status that it is difficult for anyone to study with her. However, if it is a purely academic question, Cai Yan seems to be able to answer it.

"What's the reason this time?" After a while, Chen Xi put aside Cai Yan's answer and asked instead.

"The Moling Gan family was divided because of a problem. In order to prevent the family from being divided, Gan Fen, the head of the Gan family, sent the problem to me, hoping that I could give an answer." Cai Yan said with a little sleepiness.

Chen Xi couldn't help but feel a little strange when he saw the sleepy look on Cai Yan's face. Cai Yan still paid great attention to his appearance in front of others. This obvious sleepy look was simply unimaginable to Chen Xi. Is there something wrong with this?

?

"It's so strange, why did I ask you for help?" Chen Xi asked in confusion.

"Because I know the most academic knowledge at present, and compared to some people, I seem to be more leisurely." Cai Yan said unhurriedly.

Chen Xi scratched his cheek and didn't know what to say, but that's right. The person standing at the top of these apparently academic things is indeed Cai Yan. The key to the inner library of the library is hanging around Cai Yan's neck.

And Cai Yan itself is equivalent to a library.

It is said that any powerful man who marries a powerful man can transform into a noble family in three generations. Later, relying on Cai Yan's large number of classics, it is enough to build the entire family into a scholarly family.

However, unfortunately, Cai Yan had no intention of getting married at all. The Cai family's reputation relied on Cai Yan alone. If Cai Yan didn't mention marrying outside, other aristocratic families would have nothing to do even if they were interested.

"What's the problem?" Chen Xi scratched his cheek and asked awkwardly, "Speaking of which, can't you solve it?"

Cai Yan's own qualifications are very good, and he also has spiritual and quasi-spiritual talents. After being fed by Chen Xi's large number of classics, he is indeed extraordinary in academics. Normally, in the current social environment, unless it is a philosophical issue, it is not

There may be situations that make it difficult for Cai Yan.

"The earth we are standing on is round, right?" Cai Yan said slowly.

"..." Chen Xi's eyebrows twitched when he heard this, but he said nothing. However, Lu Xun was completely stunned and his mind was in chaos.

"Uh, is this what you asked, or..." Chen Xi thought for a while and decided to think about what was going on before answering.

Although during the Spring and Autumn Period, some people in China and ancient Greece suggested that the earth under your feet is a ball, neither side has proven it.

Later, probably during the Warring States Period, Gan De and Shi Shen in the Central Plains deduced that the earth was a ball from the formation of lunar eclipses. At the same time, Aristotle in ancient Greece also deduced that the earth was a ball based on this. However, both parties thought that they were mentally retarded.

,How can the earth be a ball!

So both sides just mentioned this piece of speculation in their own classics, and then said nothing more. The only evidence was a lunar eclipse. From this aspect, the people of the 2500th century were indeed very powerful.

It’s unusual, after all, both sides gave birth to a group of actual founders of civilization.

Later, it was Luo Xia Hong of the Western Han Dynasty who really proposed that the earth is a ball in the Central Plains, and he directly introduced the theory of Hun Tian. However, Luo Xia Hong could not really develop this theory. Although he proposed it, it was not recognized by the mainstream of society at that time.

.

Coming down to Zhang Heng, it was scary. The armillary sphere directly explained many astronomical phenomena in the Earth-Moon system and the solar system at that time. Only then did the armillary theory really begin to overwhelm the Gaitian theory.

However, Zhang Heng himself could not explain why he did not roll down if the earth was a ball. In addition, Zhang Heng's conditions at the time were unable to calculate the area and circumference of the ball. Therefore, although Hun Tian said that he explained a lot of things, it was

There is no way to completely kill Gai Tianshuo.

As for the current Three Kingdoms period, in fact, the Huntian theory has already taken advantage of it, but there is a big problem in the Huntian theory, which is that it cannot explain the problem of the ball, because although the Huntian theory is popular, few people are really sure that there is a ball under their feet.

.

Now Cai Yan is asking. Judging from this tone, someone should have firm evidence.

"The Gan family and the Gan family in Moling raised the question. Some of them moved targets on the sea to calculate the limit of the visible range and the circumference of the earth. They thought there was a ball under their feet!" Cai Yan was very helpless!

He said, and then took out a stack of calculation methods and conclusions from various verification results from his sleeve.

"What's the conclusion?" Chen Xi said with a headache. He had long known that there were some monsters in the Central Plains that were difficult to deal with. Well, we really encountered them this time.

In fact, this cannot be blamed on Chen Xi. When we were on land, it was difficult for the ancients who were fixed in one place to come to the conclusion that the earth is a ball even if they had the knowledge accumulated over several generations. As a result, last year, Zhou Yu brought a group of astrologers and astrologists to

, Feng Shui, and Kanyu people got on the boat and went south, and this group of people almost got into a fight on the boat because of the astrology person.

Needless to say later, the Gan family was dissatisfied, the Chen family was unhappy, and the Wang family was also displeased. In the end, the matter was revealed, but when the three families returned home, they directly started the whole family research mode, but the Gan family failed.

They spent the most money and chose the right method. It only took half a year to get the results. And then because of this result, the Gan family started fighting within themselves.

"The calculation of the circumference is based on the latest data calculated by Zhao Junqing. Gan Fen took the Moling Gan family to conduct actual measurements at sea for two months, and finally determined that the earth under their feet is a ball, and the value will be larger the further south they go. According to their calculations

, the maximum circumference of the earth under your feet is 40,000 kilometers in the latest unit." Cai Yan handed Chen Xi the calculation paper sent by the Gan family.

Chen Xi was silent. The difference between this data and the data in his impression was actually very small. It should be said that this family is worthy of being engaged in this professionally.

Looking at the calculated data in his hand, Chen Xi was extremely impressed. Moreover, a large amount of actual measurement data was noted on it. In order to avoid mistakes, several actual measurements were even conducted in the same place. After excluding some unexpected data, the average was calculated.

There are several calculation methods, such as the shadows of different areas at the same time and height, the visual distance of the sea horizon, and even asking the immortal to use a light spell that is almost like a laser, and then the ship stays away from the sea and calculates the straight rays along the way.

As the height of the ship's scale mark moves away and rises, the last data taken is the last data.

Naturally, the accuracy of the data calculated in this way is horribly high. By the way, in order to complete this test, one-third of the wealth accumulated by the Gan family over hundreds of years has evaporated, including the cost of buying ships, arranging manpower, and purchasing accurate clocks.

, buy colorless crystals, etc.


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