In Ge's study room, without the obstructive emperor, Ge Yong stared at Zhang Shou. The unhappy expression on his face just now disappeared, replaced by a smile. He even touched his grandson as if he used to tease him.
Zhang Shou turned his head and saw the disciples who were closing the door hurriedly away in embarrassment, but he didn't feel dissatisfied.
"You swept Jiuzhangtang last night, and you offended many people in the Imperial College with Tiao Teng. But today someone came out to accuse Zhou Xun, and you didn't add insult to injury because of a little grudge. In the end, not only did you clear up the relationship, but you also let him go.
Zhou Xun has to remember your kindness, he did a good job and did not embarrass my old man!"
"And when I told lies to the emperor, I did it out of good intentions, and I also knew how to apologize, so I finally made up for it."
Zhang Shou secretly called it a fluke. While in the Imperial College, he found that the emperor did not seem to hear the flaw in his words, but based on the principle of caution, he really planned to go back and ask Ge Yong to hand over a letter of apology.
Go up!
He felt that everything he said at this time was a bit flamboyant, so he could only laugh at it.
And Ge Yong obviously didn't mean to hold on to such a thing. After all, the emperor said that he couldn't get Zhang Shou to help him, but he was very interested in Zhang Shou's method of determining whether the plaque was hollow.
!
"Since the Emperor asked me to determine whether Taizu's plaque is hollow or has hidden grids, I must first ask you about the principle of this method. If it is really easy to use, it is only used to deal with a plaque inscribed by Taizu. It is a trivial matter.
Is there someone who is making fake gold and silver ingots? That would be the most effective. Come on, tell me specifically how you came up with the idea?"
Zhang Shou could only laugh. Isn't Archimedes' law just what it is said that Archimedes came up with an idea after thinking hard for a long time when judging whether the crown was pure gold?
He thought for a while and finally decided to explain it carefully: "Teacher, whether it is dark wood or gold or silver, as long as the materials are the same and the weight is the same, then their sizes should be the same. But because of the shapes of these things, they are not the same size.
Like the yangma turtle mentioned in the Nine Chapters of Arithmetic, the rules are neat and tidy, so the actual size cannot be calculated."
Ge Yong, who claimed to be a master of arithmetic, certainly understood what Zhang Shou meant. After thinking about it for a moment, he nodded and said, "It makes sense, keep talking."
"Since we can't calculate the size, we can only use other methods to calculate and compare. Therefore, water has become a very convenient criterion. Because objects of the same size enter the water, the size of the water displaced should be the same.
.In this way, by marking the edge of the pool, you can easily compare the actual size of the object..."
Zhang Shou thought as he talked, that in order to fully explain this principle, mathematics alone is not enough. Simple physics knowledge and even terms such as mass, density, volume, buoyancy, etc. must be presented, otherwise it will not be correct in the future.
It would undoubtedly take a lot of effort for someone like Ge Yong who is proficient in arithmetic to explain it.
The same goes for the awkward terms in the Nine Chapters of Arithmetic. It would be best to ask Ge Yong to publish a book to popularize related terms such as four pyramids, three pyramids, rectangles, cubes, etc. Otherwise, it would be just Yangma, Biezhen and the like.
There is no intuition at all.
Just like Luo Siye, Xu Heizi and those Guozi doctors, when other people see and hear those two words, they are completely confused.
And Ge Yong suddenly realized: "Very good, I understand. If the plaque is not dark wood, but soft wood such as golden nanmu, it will be much more troublesome, and you will have to tie a heavy object into the water. Of course, this method
The accuracy cannot be completely guaranteed, but it can only be said to be roughly accurate, because when an object enters the water, it is easy to splash water, and when it comes out of the water, it is easy to bring out water droplets, and the scoring may not be accurate. "
"That's what the teacher said." Zhang Shou chuckled, and then couldn't help but yawned again.
"I'll ask someone to make arrangements later to determine as soon as possible whether the Taizu plaque has hollow or hidden grids... To be honest, I don't think there is."
Zhang Shou thought to himself. I don't think so either. Otherwise, how could Taizu leave a room full of handwriting in the palace, and let eunuchs like Chu Kuan regard it as a treasure and pass it on from generation to generation?
Ge Yong said it was business, and then he snorted dissatisfiedly: "By the way, Xiao Yingying came with the emperor before, but I drove her back. She placed your mother in Old Man Qi's house last night.
Huh, ungrateful little girl!"
Knowing that his mother did not live in Zhao Guogong's mansion, Zhang Shou couldn't help but express his gratitude to Zhu Ying, who seemed to be carefree. He had read thousands of sails and could not care about the wealth of Zhao Guogong's mansion, but it was difficult for Wu to do that. The eldest lady could be so considerate.
Delicacy is really difficult.
As soon as his mind changed, he quickly asked Ge Yong: "Teacher, where are Ah Liu, Xiao Qi and Xiao Dai that I brought before?"
Ge Yong then said half-heartedly: "They are all outside the door. I ordered them to be taken to the guest room, but those two insisted on waiting for you outside with Ah Liu. It is obvious that they don't trust you."
Upon hearing this, Zhang Shou hurried out and immediately called the two of them and Ah Liu into the house.
Before he could bring out Deng Xiaodai to introduce to Ge Yong, he got another cold snort: "Don't do this, I've seen Xiao Qi before, and I've seen Xiao Dai a long time ago, too.
Otherwise, I know that there is a close disciple like you in Rongshui Village? Last time I was at Qingfeng Xu Laitang, I discovered that the youngest of the Lu family seems to have some talent in arithmetic. I just heard from the emperor that more than a little, you are really lucky!"
"I'm so angry. I have so many students in my name. Except for you, Prince Yin Datou of Shuntian Prefecture, who is a half-disciple, can't find any of them who have a talent for arithmetic. Even if they do, they are all busy doing it.
You have been promoted to an official position, but you actually met three of them easily!"
Zhang Shou didn't expect that Mr. Ge, who had students all over the world, was jealous of his student luck. He had no other choice but to laugh. But because Ge Yong thought of Wang Datou, he suddenly remembered another thing, and immediately pointed at the unfilial disciple and continued to complain.
.
"Datou, King Yin of Shuntian Prefecture, specially sent me a letter this morning, saying that he summoned Xiaodai last night. Xiaodai also presented some column charts and line charts. He said that the statistics of taxation, population, income, and expenditures were very intuitive.
You came up with it again, right? If you have any new tricks, show them to me as a teacher first. Are you addicted to cutting first and showing off later?"
Wasn't it too late for me? Did I go back to the village last night? I never thought that Deng Xiaodai, a mere minister, would meet him without any trouble, and I never expected that Deng Xiaodai would move so quickly...
Zhang Shou thought so in his heart, but he could only glance helplessly at Deng Xiaodai, who was bowing his head with a guilty conscience, and then stood obediently while being sprayed. Finally, he quickly promised that if he had any new ideas in the future, he would discuss it with the teacher first.
With such a guarantee, Ge Yong finally breathed a sigh of relief and let out a sigh of satisfaction. When Deng Xiaodai expressed some fear that he wanted to return to Shuntianfu Yamen, Qi Liang also said that he wanted to go back to see how the Wu family was settling in.
, he waved his hand magnanimously, letting the two of them leave first. As for Ah Liu, who was motionless in the corner with a wooden man, he glanced at it and ignored it.
"Ah Shou, please remember that in the future, you should avoid touching anyone or things that are involved with the four words "Emperor Taizu". Except for this incident of Taizu's inscription of the plaque, after all, you were involved inexplicably.
of."
Zhang Shou did not expect that Ge Yong would warn him to stay away from matters related to Emperor Taizu, and he couldn't help but be a little surprised. However, while he was waiting for Ge Yong to explain further, the emperor's master coughed dryly and changed the subject.
"Xiao Qi's ranking in the imperial examination might have been slandered if Datou, Prince Yin of Shuntian Prefecture, had not refuted many people in front of the imperial court. Even if he enters the imperial examination, I don't know how long he can hold on. So, you are in the Imperial College
Whether you can stand your ground is very important, so I highly commend what you did in the Imperial College today."
"Wang Datou's arithmetic talent is quite good, and he is half a senior brother of yours. After Xiao Dai goes back today, he will definitely tell Wang Datou about your Taizu inscription on the plaque today. Hey, compared to those line charts and columns,
Picture, this is a more interesting way to determine whether something is hollow and whether it is doped with impurities!"
Zhang Shou immediately couldn't laugh or cry. My teacher, I was waiting for you to talk about Emperor Taizu, but you just started talking to me about what counts as a civil examination, what about gaining a foothold in the Imperial College, and what about being the head of the imperial family?
Isn't it too abrupt for you to change the subject?
He thought for a while, and simply stopped asking about Emperor Taizu, and said sincerely: "Teacher, last night in Jiuzhangtang, Lu Sanlang took the Yang Horse and Turtle Zhi from Jiuzhang Arithmetic, and put Luo Si
Ye and several Guozi doctors, Xu Jiancheng of the Shengqi Hall were speechless when they asked. Although this is because they don't read the Sutra, the wording used in the Sutra is too complicated, which is also a reason."
He paused and said with a smile: "Can the teacher, in the name of a master of arithmetic, publish a manual of Gurdjieff's simple terminology and symbolic calculations?"
Upon hearing this, Teacher Ge's eyes lit up at first, and then he stared at his disciple with a subtle look.
Old man, if I say I don't want to, you'll plan to kill it first and publish a book in my name, right?
He snorted and said as if he didn't care: "Okay, you tell me first!"