"This is a new type of reinforced concrete girder bridge, for the teacher to naturally consider comprehensively, if because of a small mistake, and the previous efforts are lost, it is not a loss of face for the Mo family." Merton's positive color channel.

The reinforced concrete beam bridge is a precedent for creating the history of the bridge, Merton naturally wants to be perfect, and with the increasing load of the four-wheeled carriage, the importance of the beam bridge will become more and more important, and the benefits of repairing the beam bridge in advance are self-evident.

"It's a pity that the master's knowledge is so broad and profound, and there are still people who disobey the master." Wu Meiniang looked at the shadow of the arched bridge in the distance, pouting, and looked worthless to Merton.

Morton laughed and said disapprovingly: "The distance is really broad and profound, not only can it be used in ink skills, but also between people and hundreds of schools of thought need to use the way of distance." ”

"People can also be used between people, among hundreds of schools?" Wu Meiniang opened her glasses wide and asked puzzled.

Mo Dun said loudly: "In Mozi's secret writings, there is an interesting story that Mo Sheng discovered, and you may understand it after listening to it. ”

"Mozi's secret?" Wu Meiniang suddenly became excited, this is the top secret of the Mo family, it has always been mastered by the master, every story is very philosophical and even hides the secret skills of the Mo family, she has long been itching, but unfortunately she has read the books in the study a long time ago, but she still has not seen the trace of Mozi's secrets, no one thought that Moton would be here to tell her about Mozi's secrets.

Mozi walked in Zhao and stayed at a hunter's house, the hunter was good at hunting, and captured more than a dozen hedgehogs at a time, but that night there was a sudden heavy snowfall, these hedgehogs were shivering from the cold, in order to keep warm, they had to lean close together, and after getting closer to each other, because they couldn't bear the long thorns on each other's bodies, they soon had to separate again. But it was so cold that they leaned together to keep warm. However, the stinging pain when they were close together forced them to separate again. If you get too close, your body will sting; It was too far away, and it was uncomfortably cold. Merton sighed.

"Ahh So what to do? Wu Meiniang was still a little girl after all, and when she heard that the hedgehog was suffering, she couldn't help but worry.

Merton continued: "Again and again In the end, the hedgehogs finally found a moderate distance to keep each other warm without being stabbed by each other. It was able to survive the long night. ”

"These hedgehogs are so smart!" Wu Meiniang said happily.

"Mo Sheng observed this scene, and couldn't help but sigh: close hurts others, far hurts oneself, one far and one near, the distance between people is exhausted."

"The distance between people." Wu Meiniang looked at the arch bridge in the distance, and suddenly thought thoughtfully.

Merton nodded and said: "Not only people are like this, but also a hundred schools, each of our sons and hundreds of schools of thought insists on their own doctrines, like a hedgehog, if the two families are too close, they will definitely quarrel and constantly stab each other, and no matter which doctrine is also difficult to support, it takes a hundred schools of thought to unite to explore the endless ocean of knowledge." ”

"The master is high, and the apprentice understands." Wu Meiniang realized in her heart that the Mo family and the hundred schools of thought hurt each other like hedgehogs, and they couldn't do without each other, but between the three veins of the Mo family, it was not the case, maybe it was not wrong to keep a distance like this.

Mo Dun looked at the thoughtful Wu Meiniang, and said with a hint of cunning: "Since the teacher has already taught you the doctrine of the Mo family's distance, the teacher will assign you a task." ”

"Ahh Wu Meiniang's face suddenly turned bitter, but she didn't expect that in the end, the master still buried a big pit.

"What, don't want to?" Morton snorted coldly, although he assigned tasks a few times before, but Wu Meiniang had a lot of opportunism with the help of Princess Changle, and I am afraid that no one would help her in this mission.

"Please also ask the master to instruct, even if the apprentice goes to the soup and fire, he will not hesitate." Wu Meiniang looked like she was admitting punishment and admitting punishment.

Mo Dun nodded with satisfaction, picked up a three-foot-long wooden ruler used by the Mo family disciples and said: "The ruler is the most accurate distance to measure the distance, and every Mo family disciple will never leave his hand." ”

Wu Meiniang nodded solemnly.

"The teacher requires you to make a ruler, which must be accurate to the centimeter, and the length can be measured at least one zhang." Merton demanded.

The size unit of this era is: one zhang ten inches, one inch ten, one minute ten centimeters, one centimeter ten millimeters, he found that the ruler of this era is too simple, the ruler is accurate, but the accuracy is not enough, most of them are accurate to the point is the limit, one point is equivalent to three centimeters in later generations, when the workmanship must rely on the skills of skilled craftsmen to ensure accuracy, if the maximum accuracy can be achieved, he believes that the children of the Mo family will be greatly convenient, and there will be more skilled craftsmen who can appear.

"Master, don't worry, the apprentice will definitely be able to complete it." Wu Meiniang said excitedly, and at the same time, she couldn't help but have a suspicion in her heart, this time's homework is too simple!

Sure enough, he saw Morton frowning solemnly and said, "The teacher thinks that this ruler is too long, and it is really inconvenient to carry." ”

Wu Meiniang on the side nodded thoughtfully, she was also extremely dissatisfied with the usual ruler, and she was always in the way.

"If even this three-inch ruler is so in the way, if you make a one-zhang ruler and let the children of the Mo family hold it every day, then the Mo family will not become the laughing stock of the hundred schools." Merton asked rhetorically.

"Ahh Wu Meiniang was stunned for a moment, only then did she realize this problem, and the excitement just now had already disappeared.

Therefore, the teacher asked for this ruler to be easy to use, and it could also be carried by one hand. That's your real homework! Merton said solemnly.

"How is this possible?" Wu Meiniang almost jumped up without hurrying, it was obviously a ruler long by one zhang, but it was required to be controlled with one hand, no matter how you looked at it, it felt impossible.

Mo Dun suddenly showed a smug smile and said: "This is a good thing that benefits the children of the Mo family, don't you, as the senior sister of the Mo family, feel that you have the responsibility to handle this matter well?" ”

"But the master also said that the distance is immutable, how can a ruler with a length of one zhang be only the size of a palm?" Wu Meiniang said anxiously.

"Then you have to use your brain, don't worry, this time you and I are still like making mirrors, making it together, it's better to try it?" Merton said loudly.

Wu Meiniang's heart moved, since the master also made such a ruler by himself, it means that this is feasible, last time, there was Morton personally led her to point out the principle of making mirrors, but this time I am afraid she will have to do it herself.

"Obey orders!" Wu Meiniang suddenly rose up with a momentum of not admitting defeat and said solemnly.