In "Nine Chapters of Arithmetic", the calculation items about the volume of grains occupy a large space. Although some of the brothers Ye Mengqiu lamented that even "Nine Chapters of Arithmetic" is difficult to buy on the market, but this
Among the astronomical and mathematical talents who were first called to Beijing, they also had family backgrounds, so they grew up under the influence of various arithmetic calculations since childhood.
Therefore, when they heard that Zhang Shou actually demonstrated such a mathematical problem in front of the public by using the method of loading millet with official dendrobium, they who had been arranged to sit together early could not help but look at each other. Then Zhang Shou asked Ah Liu to bring a blackboard and three times on the spot
Dividing five by two calculated the volume of a standard official dendrobium. To them, it was nothing.
What surprised them was the series of test weight data given by Zhang Shou next for different grain types.
From indica rice, japonica rice, wheat, barley, sorghum, corn, soybeans... all kinds of data flowed out gracefully in Zhang Shou's writings. A group of people who always thought that astronomy and mathematics were a profound knowledge saw that arithmetic is not only related to the levy of granary, but also
It's so surprising that it can be used in a place like this.
"Why do we need to calculate the test weight? It's very simple. If the grains measured by Guan Dendrobium have the same volume, once the test weight is different, the final weight will be different. Among them, it is related to the moisture rate, the grain storage time, and the storage time.
Grain temperature…”
Seeing Zhang Shou writing and drawing on a blackboard again, he told how he measured the height of the grain pile in his own granary in Rongshui Village after half a year, one year and one and a half years later, thus verifying the grain particles.
The gap between them decreased, and the bulk density increased. Finally, we came to the conclusion that for the same dendrobium, old millet is heavier than new millet.
Regarding those derivation processes, what is the force decomposition, everyone just thinks that what Zhang Shou originally said today will be simple and easy to understand, explain the profound things in a simple way, it is simply a lie! The previous demonstration is very simple, but they basically said the following things
I can only understand one conclusion, and I don’t understand the rest at all!
Not to mention them, even Yue Shanchang and Xiao Shanchang, who were quite knowledgeable in general knowledge, felt that the smiles on their faces were a little stiff at this time.
Although they specialize in their crafts, they still need to calculate things when building ditches, water conservancy, garden design, boats, etc. However, they all seem to be carried forward on the basis of their ancestors. Who can be like Zhang Shou who can actually deduce
To something else?
Ye Mengqiu, who was already prepared, directly took out the prepared paper roll. One senior brother was responsible for grinding the ink and the other was responsible for stretching the paper. He dipped his pen in the ink and quickly started taking notes.
Even though what Zhang Shou wrote on the blackboard was completely invisible from his point of view, Zhang Shou was speaking and writing at the same time. He, who had already experienced in Jiuzhangtang and Zhangyuan, listened attentively and moved his pen like flying.
They could barely keep up with that speed. Facing this scene, the other special talents who were proficient in astronomy and math sitting near them seemed a little embarrassed.
Someone had prepared the cheat sheet, and someone had brought the plan, but at this time, no one felt that they could remember what Zhang Shou said. Some people inherited it from the Jinshi sect and did not want to ask others, but some people immediately contacted Ye Mengqiu's
The seniors said hello, and when Zhang Shou stopped this part of the lecture, several people had already agreed to go back and borrow their notes.
But in the end, Ye Mengqiu, who was rubbing his wrist after he stopped writing, said something that made them both excited and hesitant: "What's the use of just copying notes? What Zhang Xueshi said now will definitely be in the Jiuzhang Hall in the future.
I will explain it in detail. I plan to go back and take the Jiuzhangtang exam. Didn’t he tell the fourth prince before that Jiuzhangtang can skip a grade?"
Yes, the third prince went to take the Jiuzhangtang exam in person before. Although he can no longer continue taking classes at Jiuzhangtang because he was canonized as a prince, the emperor was not only the first to order Zhang Shoudong Palace to give lectures, but also taught at Jiuzhangtang.
The outstanding ones were selected from the hall to serve as the attendants in the East Palace!
If they can pass the exam and then try to skip a grade... wouldn't they also be able to join the East Palace?
Even though they had heard the news about the reopening of Jiuzhangtang, a group of special talents were still reluctant to join Jiuzhangtang. Their expressions were a little subtle. Especially at the invitation of Ge Yong, they had discussed it with Zhang Shou in Ge Mansion.
The elders who had arithmetic problems felt a little embarrassed. After all, let alone other things, Zhang Shou readily admitted that he had no research on astronomy.
They were going to take part in the Four Seas Test and reset the calendar. They were already familiar with all kinds of astronomical phenomena, so it would be too embarrassing to go to Zhang Shou, who claimed to be ignorant of astronomy, for advice!
As a result, the eyes of several elders fell on the juniors for a moment. Well, Ge Yongna was also an old senior to them. No matter how humble they were, they should still discuss friendship with Zhang Shouping. As for these young juniors
, then you might as well go to Jiuzhangtang and see if you can learn something novel from Zhang Shou.
Young people should study all the time!
Zhang Shou didn't make any big preparations for this open class in advance. Instead, he just thought about it and decided to use this open class to add fuel to the third prince's agricultural policy question. At this time, he calmly
From a heavy perspective, we talked about grain storage and seed selection, and then we turned back to the density and started talking about how to distinguish adulteration of gold and silver. Among them was the story of the so-called alchemist who cheated money by burning silver.
Jiuzhangtang and Banshantang have long been accustomed to the teacher's various examples, and after giving them, he began to cite various formulas and laws to calculate and prove. However, other people who came to the class today had never experienced this at all.
Such a complete baptism.
For example, Zhu Hong breathed a sigh of relief at first, feeling that Zhang Shou finally understood that the people attending the lecture were all laymen. But when he heard this, he almost wanted to cover his ears to block out the demonic sound. He even turned his head several times to look at Zhu Ying.
, I saw that the eldest lady was always in high interest, and while listening, she made gestures along with Zhang Shou's ups and downs, until he muttered in his heart that beauty is in the eye of the beholder.
If it were the young lady who hated reading the most, she would have fallen asleep on such an occasion, or maybe she had just deserted, right?
Finally, Zhu Er, who was behind Zhu Ying, poked his sister's back with his finger, then lowered his voice and asked: "Yingying, do you understand? Is it possible that my brother-in-law has been teaching you these days?"
"No!" Zhu Ying raised her eyebrows slightly, but did not clarify whether her answer was in response to Zhu Er's previous question or the latter question. She turned around and glanced at the people behind her, and saw everyone with a bitter look on their face.
The expression on her face seemed to say, where am I, who am I, and what am I doing? She couldn't help but smile.
"Look at other people like that, it will make you feel better!" Including you silly geese!
Besides, she wasn't here to find fault with him, or to see if there was any chance of getting close to the Third Prince, or to plan anything else... Wouldn't it be interesting to just watch Zhang Shou try different ways to torment these people who were attending the lecture?
Something?
The eldest lady knows how to have fun by herself, and she is happy, but more people are getting more and more dizzy and their eyes are dazzled. Among them, when the class finally came to an end and Zhang Shou announced that the class was over,
I don't know how many people breathed a sigh of relief. Some people who originally doubted Zhang Shouzhen's true talent and learning fled away, but they all made up their minds.
Next time...I definitely won’t come!
Even if they want to question, they have to find out what they are saying first, but they can only understand those human words. As for understanding those heavenly books that look like ghostly drawings, it is simply difficult for others!
Even Zou Ming, who had been saved by Zhang Shou, could not help but rub his temples with lingering fear, and then said with a grimace: "I didn't expect that arithmetic can be used in these things... and it is so difficult and difficult.
, I just felt like I was listening to heavenly scriptures!”
When his two companions looked at me, they all felt that the heroes had similar views. Not only them, Song Juren on the side took an exaggerated breath, shook his head and said: "They say life and death are a great terror, but I used to
I thought that the greatest horror would be to practice art and literature all day long. But now I finally discovered that there are even greater horrors in the world, such as arithmetic! It’s so terrifying, so terrifying!”
Fang Qing almost laughed out loud at Song Juren's words. But when he turned his head to the side, he discovered that Yang Zhan and Guan Qiu were whispering. Neither of them studied arithmetic, and they were not like Ye just now.
Meng Qiu was immersed in taking notes like that, but thinking that Zhang Shou had always praised the two of them for their extraordinary talents, he couldn't help but ask: "Young Master Yang Qi, Xiaoguan, do you understand?"
"Nonsense!" Yang Zhan, who was no longer skinny at all, rolled his eyes, but then said angrily, "Of course I didn't understand!"
He added: "How long have I just learned to calculate elapsed time? How can I understand this? I don't even understand how to calculate the volume of Guan Dendrobium! But Xiaoguan seems to have gained a lot, no wonder
, he has always been self-taught!”
Guan Qiu was a little embarrassed to be stared at by everyone. He laughed and then whispered: "Brother Zhang originally asked me to measure the test weights of various grains and wrote down the data. He said,
This was just a test, and I didn’t expect him to talk about it in a public class at that time..."
Before these words were finished, the others were holding their foreheads, sighing, and shaking their heads. Who would have thought that a boy with a background as a carpenter's apprentice would be the only one among them who not only understood, but also participated in it early.
Did he go into Zhang Shou's experiment?
Unlike Zhang Chen, Zhu Ying and others, these few people were originally sitting among a large group of special talents in astronomy. At this time, unlike the people who were running away with pale faces, most of the people did not leave. Of course, they could be heard from the front, left, and right.
Whoever spoke, someone immediately asked.
"May I ask who this young master studied under? Does he also live in Zhangyuan? If it is convenient, can I ask for advice in the future?"
Unexpectedly, someone wanted to discuss academic issues with him, and Guan Qiudeng was stunned.
After a long while, he scratched his head and said with some embarrassment: "I'm not a scholar, I'm just a craftsman."
"Yes, yes, he is just a craftsman, but he was praised by the emperor and said he is worthy of being a great craftsman."
Song Juren on the side couldn't help but complain. He looked sincere when he saw the guy who asked for the invitation. When he heard that Guan Qiu was just a craftsman, he immediately frowned. Although he didn't show disdain, he showed contempt after all.
, but after hearing what he said, he looked shocked again. He couldn't help but sneered in his heart, he was like a face-changing madman.
He said unhurriedly: "Not to mention the experiment done by Academician Zhang today, even many things that Academician Zhang made before are inseparable from Xiaoguan. For example, spinning machines, looms, clocks, glass
…”
Before he could finish what he said, Fang Qing next to him coughed heavily. At this moment, Song Juren immediately realized that he had revealed information that he should not have disclosed, and immediately snarled and shut his mouth. However, what he said
It was impossible to take back the water that was thrown out. The person who just asked Guan Qiu for advice felt like he had found a treasure and immediately pressed him.
"Oh, this Great Craftsman Guan turned out to be the man who made so many ingenious things with his own hands? Why have I never heard of his name before? As we all know, I know everything about looms, spinning wheels, clocks, and glass.
I only heard that it was Academician Zhang’s initiative. Isn’t he suspected of deceiving the world and stealing his reputation?”
As soon as these words came out, Song Juren's heart suddenly skipped a beat, and he knew that his showy change just now seemed to be causing trouble.
However, before he could organize his words to fight back, he heard Guan Qiu's always honest voice: "Young Master, have you ever seen such a bus, a hoe, a sickle, a canal, and so on?
Were they really all built by the father-in-law named in the name? I think it is impossible. Whether it is a waterwheel or farm tools, they must have been built by blacksmiths and carpenters according to the drawings. As for the canals and embankments, there are a huge number of real builders.
A commoner...but so what?"
Guan Qiu, who never liked to talk, stared at the young man with an extremely unnatural expression, and said word by word: "Can that cover up the great contribution of those who know how to improve the design of farm tools? Can it erase the personal presiding and raising of funds?"
Funds, the initiator who organized civilians to build various water conservancy and ditch facilities, does he deserve the reputation and evaluation?"
"I did contribute a little bit to some of the things Mr. Song just said, but it is not all my credit. It is more the credit of Fourth Brother Zhao and Senior Brother Luo. The most important thing is that the first trace of
The inspiration was all imagined by Brother Zhang! Anyone who says he deceives the world and steals his reputation is judging a gentleman with a villain's heart!"
Seeing that the young man's face was turning blue and white just now, especially when he was judged as a villain, he couldn't sit still anymore and simply got up and walked away, covering his face. Guan Qiu then put away his anger and smiled honestly.
Laughs: "The spinning wheel that has just been promoted now was improved by my senior brother Luo Xiaoxiao, and the glass was made a lot of by Brother Zhao, and it has nothing to do with me. I mainly work on looms and clocks.
It's something trivial. But I still say the same thing, this is more due to Brother Zhang."
"When he encouraged me to study, he said something that I couldn't agree more with. Knowledge is power!"
Song Juren finally realized what it means to be loud and deafening. With a high spirit, he glanced at the companions of the guy just now with pride. He saw that those people all avoided his sight, but there were a few other people who were obviously not from the same group.
Giving Guan Qiu a thumbs up, he smiled and said, "What Xiaoguan said is so good. Everyone should listen to it!"