Mohist Tang

“Accurate to centimeters!” Li Yun couldn’t help taking a deep breath, and began to calm down and start measuring.

For the accuracy that Mohist Family Son requires for the ruler, he has a great sense of confidant. The more skilled the craftsman, the higher the accuracy requirements.

The difference is far from the point of view. This is not just a simple talk. Especially difficult Engineering Projects like building arch bridges have extremely high requirements for measurement accuracy, and a small mistake often Cause catastrophic losses. Even if a craftsman has already measured it accurately, he should measure it himself personally to be assured that the quality of the arch bridge can be guaranteed.

One foot is equal to ten feet, one foot is equal to ten inches, and one inch is equal to ten. Li Yun has repeatedly determined that he dare not be sloppy, and strive to be extremely precise.

“One point is equal to ten centimetres!” However, when Li Yun was accurate to centimetres, she was immediately stunned, because Tang Dynasty is divided into large and small scales, and Li Yun’s standard is large The ruler, one cent of such a large ruler is only equivalent to about three millimeters to four millimeters for later generations. Such a short distance can’t be accurate to ten centimeters.

“Sure enough, it’s not that simple!” Li Yun sighed in his heart. He knew that the questions presented by Mohist Family Son were not that simple. It is basically impossible to be accurate to ten cents, even if it is. Forcibly dividing, I am afraid that this ruler will be destroyed in the end, making it impossible to see the scale at all.

“Zi Mozi said: “Medium, the same length. Since there is no way to be accurate to every centimetre, but it can be accurate to the fifth centimetre.” Li Yun thought, as long as the accuracy is the fifth centimetre. If you need more precise scale, you can visually check the closest length.

When he personally engraved the 5th centimetre mark in the middle of each inch, looking at the precise scales, his heart suddenly became proud. This is the most accurate ruler he has ever used.

This kind of ruler can be said to be invaluable to Mohist Family Son. With such a precise ruler, he can accurately measure all things in the world, and suddenly there is a kind of world in his heart. The feeling between sizes.

“The next step is the most important step, which is to make this wooden ruler controllable by just one hand.” Li Yun couldn’t help but fall into contemplation looking at the wooden ruler in front of him, which was much higher than him. Two of the three requirements have been completed, and the rest is the most difficult part. How to make the ten feet long wooden ruler can be controlled between one hand, Li Yun looked at the ten feet long wooden ruler in front of him. In distress.

Originally, when he was holding a three chi long wooden ruler, he didn’t think the task was too difficult, but when the ten feet long wooden ruler was placed in front of him, it made him solemn .

To be honest, the ten feet long wooden ruler is very common in practical use. When measuring some large objects, such a long wooden ruler is needed. He didn’t think there was anything in the original. When he was combining the requirements of Mohist Family Son, he discovered how convenient it would be to make the kind of ruler Mohist Family Son said.

“How did Mohist Family Son do it!” However, after a long time, Li Yun still has no clue. No matter how hard he thinks, he can’t figure out how to change a ten feet long ruler. Slap big.

“Young Master, in my opinion, it must be Mohist Family Son talking nonsense. He himself admitted publicly that the distance is immutable, and the ten feet long ruler becomes impossible. “The old servant was comforted.

Li Yun shook his head dejectedly and said: “Although Mohist Family Son said that the distance is immutable, I have changed the status quo and changed the distance. Those who have a long detour can build bridges and roads, and those who have a long distance can speed up Horse Carriage. , So that you can drive longer roads in a shorter time. And the intention to come to Mohist Family Son to write a question is also the same!”

The old servant can’t help but acquiesce and doesn’t know how to comfort Li Yun, after all, Mohist Since Family Son has given a question to his discipline, he must have a draft in his heart.

However, after a long time, Li Yun is still clueless. According to the knowledge he has learned, there is no way to do it.

“It seems that I am too pretentious. I originally thought I could compete with Mohist Family Son. Now it seems that even Mohist Family Son’s discipline may not be able to beat it.” Li The more Yun thought about it, the more angry he became. He couldn’t help but furious, and angrily threw the wooden ruler in his hand to the ground.

The wooden ruler has ten feet long, which is a manufacture of thin and long wooden planks. It was thrown heavily on the ground and immediately broke into several pieces.

Unfortunately, the old servant said: “This is a wooden ruler made by Young Master’s hard work!”

Li Yun spent a lot of effort on this wooden ruler. He looked in his eyes and saw that the wooden ruler was ruined, and he couldn’t help but leaned in distress and picked up the broken wooden ruler piece by piece.

There were many broken pieces of the wooden ruler. When the old servant picked up a few pieces, his hands were really unable to hold it. In the end, he had to stack the wooden ruler in both hands and continue to pick up the remaining broken pieces. Wooden ruler.

However, the old servant did not see that when Li Yun’s originally decadent eyes accidentally saw the stacked wooden ruler, he suddenly rose up, his eyes suddenly bright.

“hahaha, I understand that I finally solved the problem of Mohist Family Son.” Li Yun suddenly laughed like crazy.

“Young Master! What’s the matter?” The old servant hurriedly got up and looked at Young Master in horror.

However, Li Yun ignored the old servant at all. Instead, he directly picked up a long disconnected wooden ruler and snapped it off again with a snap.

In the worried gaze of the old servant, Li Yun stacked pieces of broken wooden ruler in his hand, and saw that the ten feet long wooden ruler was only palm-wide.

“Young Master means to cut the ten feet long wooden ruler into small pieces?” The old servant suddenly realized Li Yun’s intention.

Li Yun proudly nodded said: “Yes, although the ruler is long, it is about five centimetres thick. If I wait to cut the ten feet long wooden ruler into half chi long, it wont work. Its only one inch wide. Only in this way can the ten feet long ruler be in the palm of your hand.”

“But in this way, wouldnt it be more troublesome to use such a piece of wooden ruler? Nor is it precise anymore.” The old servant shook his head. If you use a wooden ruler when measuring an object, it is very troublesome to put it away one by one after you use it up. If you accidentally move a wooden ruler, the length is already not in. Up.

Li Yun haha said with a smile: “This what difficulty is there, I just need to build a’bridge’ between the two wooden blocks to connect, connect the two half rulers with rivets, and connect them Just like a chain connection.”

Li Yun said, picking up two small wooden rulers in his hand and pinching the tail section with his fingers, flexibly moving the two wooden rulers back and forth.

The old servant immediately eyes shined, and can’t help but exclaim: “Young Master is really talented and smart, and he has solved the problem of Mohist Family Son so easily.”

Li Yun couldn’t help but show a trace of pride , But immediately sighed: “The craftsmen in the world do not know how many people are, and they are all used to using the three-foot wooden ruler. Only Mohist Family Son is dissatisfied with the three-foot wooden ruler. We all think that Mohist Family Son is picky. There is nothing difficult in the world.

“As soon as such a wooden ruler comes out, it must be the gospel of the craftsmen in the world, and Young Master is invited to name it. “The old servant said with a gratified expression.

“Since these wooden rulers can fold each other, how about a folding ruler? “Li Yun’s heart moved.