"The people of ancient times know that the method is based on Yin and Yang, and the harmony of magic." Huang Di Nei Jing Su Wen Ancient Zhen Lun
"Liu Hong, the former governor of Shanyang, was good at astronomy and fortune-telling. He worked with Cai Gong to supplement the laws and regulations in Hanji. This man was quite accomplished in astronomy. During the reign of Emperor Xiaoling, he served as a court official.
Presenting the Qianxiang Calendar. Although this calendar is only the first to be completed and has not yet been streamlined and verified, you can also use this as a basis to create a new calendar." The emperor had already walked to the stage at this time, looking at the huge and exquisite armillary sphere.
, said with emotion: "The calendar is related to the foundation of the country. It must be cautious, learn from the best of others, and combine it repeatedly before it can be promoted all over the world."
"I promise." Liu Hong was the most famous mathematician and astronomer in the world, a figure respected by all those who studied mathematics. Liu Wan did not expect that the emperor would value the calendar so much, and he was both excited and uneasy.
After all, Liu Hong has been famous for a long time. If the imperial court conscripted him to the Lingtai to revise the calendar, wouldn't he, the Lingtai order, have to give way to someone worthy of his place?
Seemingly sensing Liu Wan's thoughts, the emperor said: "After Liu Hong comes, he will be a doctor of the business department of Taixue, and he will be responsible for teaching the students of the business department and the economics department how to calculate the calendar.
He will participate in the whole process. After all, he compiled the Qianxiang Calendar and has so many years of experience. If you don’t understand anything, you can ask him."
Liu Wan breathed a sigh of relief, then felt relieved and said happily: "I promise, I will do my best to compile a new calendar with Mr. Liu."
As early as three or four years ago, the imperial court specially recruited Liu Hong to Beijing, preparing to reform the old calendar based on the Qianxiang calendar. Unfortunately, Emperor Xiaoling died before Liu Hong came, and Dong Zhuo's political chaos followed, and the situation suddenly changed.
Changes occurred and the imperial court had no time to take care of the calendar. Liu Hong stopped on the road and had to return to his hometown in Taishan County, and to the east of Taishan County was the Langye Kingdom. So the emperor told Wang Duan to go to Langye Kingdom to handle matters
When the protector king was in mourning, he took Liu Hong to Chang'an.
Liu Hong's importance to the emperor was not only his achievements in astronomy and calendar, but also his superb attainments in mathematics. As the earliest user of abacus and one of the annotators of nine chapters of arithmetic, he was hailed as the sage of arithmetic by later generations.
figure. With him serving in Taixue, the business department, which relies heavily on mathematical foundations, and focuses on agricultural water balance, and the economics department, which focuses on tax equalization, will no longer just talk on paper, but will
There will be a qualitative leap.
Mathematics is the mother of science, especially geometry in mathematics, which has a very significant impact on science and engineering manufacturing. Nowadays, there is no shortage of skilled craftsmen in places such as general supervisors and work examinations, but what they know is only skills. That is based on generations of
The vague concepts inherited from human experience have only one feel for what to do, and have not been scientifically summarized. If there is magic as a guide, it is possible to pierce the window paper and solve some problems that cannot be solved based on experience alone.
solved problem.
This was the true intention of the emperor, who wanted to conquer Liu Hong and enter Chang'an. However, the temple had its own destiny and could not express it directly, so the emperor did not say it out loud.
The emperor touched the outline of the armillary sphere. This armillary sphere still existed in the world until Liu Yu's Northern Expedition to Chang'an. I think it was because it was no bigger than a thick copper watch. Even if it was melted, it wouldn't cost much. Moreover, it was necessary for stargazing.
The instrument passed away from Dong Zhuo and others. The emperor withdrew his eyes from the armillary sphere. Compared with it, the emperor was more concerned about another fascinating thing at this time: "Where is the Houfeng seismometer transported from Luoyang?
?Take me to see it."
The Houfeng seismometer was invented by Zhang Heng for observing earthquakes. It was only sixty years ago, and the original still exists at Luoyang Lingtai. When the imperial court moved westward, Dong Zhuo didn't know whether he disliked it or forgot about it, so he left it where it was.
, it was not until recently that the emperor issued an order to transport it from Luoyang in the name of looking for old things in the palace.
The effectiveness of the seismograph was well known to all, but the emperor was a little curious as to why there was only one record of the seismograph being effective in the history books, and then there was no more news, and why the seismograph disappeared from the long river of history.
"The seismometer has only been moved once since it was built, and then its interior began to decay. At that time, Zhang Jun had already passed away, and there was no one in the world who knew how to operate it." Liu Wan led the way forward and led the emperor into the largest room in the middle.
Explained: "Later, some people in the court claimed that the reason why this object was fulfilled was that it could cause earthquakes, so this object was abandoned and no one cared about it. If His Majesty had not sent an envoy to Luoyang to look for old objects, this object would have been
It no longer remains in the world.”
The emperor sighed, Zhang Heng, in addition to being an inventor, was also a thinker who opposed the study of prophecies. In the Eastern Han Dynasty when the study of prophecies flourished, Zhang Heng believed that the prophecies were false and not the method of a saint.
This forbidden statement was simply a heresy in the eyes of people at the time. What's more, he also offended many powerful officials because of the current shortcomings of Shang Shu's statements. Therefore, after his death, most of his inventions and achievements were not preserved, let alone preserved for future generations.
Later generations inherited it.
The first floor of the house is a very open and spacious space. In the middle of the room is a huge bronze vessel that the emperor has never seen before. It is made of fine copper as recorded in the history books, with a diameter and a ruler, and a lid.
It is raised, shaped like a wine statue, and decorated with the shapes of turtles, birds and beasts in seal script. Sixty years have passed, this instrument has withstood too much wind and rain erosion, and it is no longer as bright and beautiful as when it was first made.
The dragons on his body were mutilated, some were missing their heads, some were missing their lower jaws, and the copper beads in their mouths were nowhere to be found.
There were one or two isolated copper toads lined up around the seismograph. The rest had probably been stolen by petty officials at some time, and were used to melt them and exchange them for money.
Liu Wan observed the words and knew that the emperor's face was hesitant, so he immediately explained: "When the imperial court moved westward, the situation was chaotic, and the officials of the Lingtai scrambled to grab the property. I don't know who made a mistake when moving him, causing this object to fall from the Lingtai.
It rolled to the ground, that's why it fell like this."
The emperor was speechless and walked around it. Behind the seismometer was a huge hollow. He stretched his head and looked inside. The capital pillars in the seismometer had long disappeared, and there were only some ingenious mechanisms that the emperor could not understand.
, as well as the remains of gears on the wall, as if a giant beast had its internal organs eviscerated after death, leaving only useless remains for future generations to see.
Since there are very few records of the seismograph, and no physical objects have been handed down, the emperor maintained the same view as many people in later generations, that is, the seismograph was a fictional existence of the ancients. But it was not until now that the emperor discovered that he had made the mistake of historical nihilism. At the same time,
He also felt lucky that the era he was living in now was very similar to the era when the seismograph was first built, and he was able to mobilize a large amount of resources and manpower to repair this instrument.
He originally just wanted to use the seismograph to predict the direction of earthquakes in advance. If it was as magical as described in history, then he would be able to know about earthquakes thousands of miles away a few days in advance. Not only could he prepare for disaster relief, but he could also seize the opportunity.
, used for planning in the court.
But now, the emperor felt a heavy sense of responsibility in his heart.
"Mu Shun." The emperor withdrew his gaze and said suddenly.
Xiaohuangmen Mu Shun, who was following the emperor and looking at the seismograph with novel eyes, was startled and hurriedly responded: "My slave is here!"
"How long has Wang Fu been away and he hasn't come back from Taixue yet?" the emperor asked in a deep voice.
Mu Shun shrank his neck and hurriedly walked out the door. He came back not long after, with two people behind him. One of them was Secretary Lang Wangfu. Next to him stood an ordinary-looking young man. For the first time
When he met the emperor, he seemed embarrassed and walked with the same hands and feet, which was extremely embarrassing.
"Tai, Tai student Ma, Ma Jun knocks, knock to see Your Majesty." Although Ma Jun practiced according to the method that the emperor asked Wang Fu to teach, his stuttering problem has been much improved, but he still got sick when he was nervous when facing the emperor.
"Everyone, get up." The emperor waved his sleeves, put his hands behind his back, and called: "Ma Jun, come closer and see if this seismograph can be restored to its original state?" 11