This traveler only wants to choose the lowest difficulty

Chapter 270 I Can't Count This Question

Wang Dong looked at the twisted counting chips on the ground, and thought that he should tell them the simple vertical calculation, otherwise how would you have so many places for them to set up counting chips when you arrive on the battlefield?

"You decide the number you calculated yourself." Wang Dong said directly.

The student soldier couldn't help feeling even more nervous when he heard the words. He checked the calculation again, and finally confirmed that he had calculated this number.

So he stood up and said to the craftsman, "Adjust the iron chain to one zhang three."

After another 10 minutes, the stone from the trebuchet was finally launched. The student soldier looked at the stone flying across the sky with an unsure expression on his face, and then everyone saw that the fence in the distance was directly crushed with precision by the stone.

At that moment, not only the crowd around the audience, but even the student soldier who calculated it himself opened his mouth wide in shock.He himself couldn't believe that his calculations were so correct.

Immediately afterwards, everyone couldn't help turning their heads to look at Wang Dong, their surprise and admiration in their hearts increased. It turned out that Wang Biejiang's calculation method is so accurate, even those who use it for the first time can directly use it and hit it. If they hit the target, wouldn't it mean that as long as they learn this set of calculation methods, they will be invincible in front of the battle?

The one who was more surprised among the crowd was Liang Shu. He widened his eyes and looked at Wang Dong, then at the trebuchet, and finally at the messy counting chips on the ground. At this time, the shock in his heart was far stronger than that of everyone else. .

Wang Dong didn't know that there was a reason why Liang Shu was so proud before. He was the most powerful operator in the Guozijian. He originally hoped that he could enter the household department or the official department after he came out of the Guozijian, and become a technical bureaucrat. Coming to Longxi to join the army, I already had a lot of resentment in my heart.

Liang Shu was depressed and frustrated at the yamen of the general manager of the marching road in Longxi. As a result, he was sent two days ago to learn from a man named Wang Hui how to operate a trebuchet to aim.

Liang Shu was even more disdainful. He originally thought that a person like Wang Dong could have any arithmetic ability?What he knows is nothing more than some experience and techniques. He thought that as long as he read Wang Dong's operations, he would immediately understand the arithmetic principles, and then restore them quickly, so he had a lot of disdain for Wang Dong in his heart. of.

The moment he saw the gravity trebuchet, Liang Shu was quite impressed. He also quickly understood the principle of adjusting the point of impact when the trebuchet shot directly, and the sense of pride in his heart did not diminish at all. But he said that he was able to aim at the target during the throw, which made Liang Shu think it was impossible.

Just now since Wang Dong demonstrated how to hit the target with a projectile, Liang Shu has been trying to figure out the mathematical theory behind Wang Dong's method, but the more he calculates, the more confused he becomes.

In fact, it’s not that Liang Shu doesn’t know how to solve parabolic equations. The calculation method of quadratic equations in one variable was researched by Chinese mathematicians hundreds of years ago, but Liang Shu didn’t know the existence of gravity acceleration, so in the calculation of the whole equation, He simply didn't understand how the value of the acceleration of gravity came from, and how could he figure out how to calculate the acceleration equation about gravity?
When Liang Shu was puzzled, Wang Dong began to explain the mathematical principles of his aiming method.

But when Wang Dong talked about the acceleration of gravity, Liang Shu couldn't keep up.

Liang Shu couldn't understand, but he happened to be a good student. The more he couldn't keep up, the more he had to think clearly. When he thought about it, he fell into his own thinking. But when he was thinking, Wang Dong kept talking. Continuing on, he took out the sextant and various instruments for artillery range measurement. Each of these tools required a lot of mathematical calculations for endorsement. Liang Shu's brain was still struggling with the acceleration of gravity. When Wang Dong takes out a new tool for a while, he naturally wants to understand the principles of these new tools, but he doesn't know logarithms or space geometry, so how can he keep up with Wang Dong? , took out the tools to explain the speed of use, so in the end Liang Shu half understood the use of each tool. , I was completely confused.

Just when Liang Shu himself didn't understand, Wang Dong directly asked a student soldier to start operating. Although the student soldier was also stumbling, he got started slowly under Wang Dong's guidance. It took about two sticks of incense to calculate a value, and then fired the live ammunition. Seeing that the live ammunition landed accurately on the wooden fence in the distance, Liang Shu became more nervous in an instant.

Liang Shu was originally very anxious because he couldn't understand what the teacher said, but when he saw that other students had already destroyed the distant target with a single shot under Wang Dong's guidance, Liang Shu had a sudden panic. This feeling is the sense of urgency that others have learned about the content that I haven't figured out yet.

As a good boy of Xueba, he would never think that other student soldiers are actually far more confused than him under stressful conditions.

None of the trainees is as stubborn as him, and they don't have any mathematical pursuits, so they just follow what Wang Dong says to do, and the artillery bureaucratic method designed by Wang Dong is already a fool's version. There is no problem with the operation steps, and the calculation value made by holding it can hit the target no matter what, so it is not difficult for these novice students to learn.

But Liang Shu didn't think so. The more he thought about the mathematical principles behind these calculation methods, the more he felt that he didn't understand. At the same time, seeing that other people seemed to learn quickly, his nervousness amplified a little bit. The moment Liang Shu saw the broken wooden fence, Liang Shu immediately felt his heart skip a beat.

For the first time, an elite student who has been a top student for many years feels the pain of being crushed in mathematics.

The more Liang Shu thought about it, the more confused he became. Seeing that Wang Dong had already explained to other students, Liang Shu finally couldn't bear it anymore. He gritted his teeth and went up to Wang Dong and said, "Sir, can you explain to me how to use these things again?" .”

At this time, Wang Dong was already instructing other students on how to use the sextant. He was not surprised when he heard Liang Shu's question. There is certainly a barrier to entry for people of this era to learn these instruments for the first time. He took a six-pointer Yi put it next to Liang Shushou and said to Liang Shu: "You just listened to the method of use we told you. You try it yourself first. I will see if there are any problems, and then I will teach you how to teach it."

Liang Shu was stunned for a while holding the sextant. When Wang Dong said how to use it, although he listened carefully, he was thinking about the mathematical principles behind it the whole time, but he didn't memorize every step like other students. When he suddenly got the sextant, he couldn't help being stunned for a moment, and then he was at a loss.

Wang Dong couldn't help frowning when he saw him like this. The other students and soldiers had been taught by him just now, even if they didn't know how to use the sextant, they could still have a general appearance. It's like borrowing, and you don't even know where to put your fingers?
Are you distracted in class?

Wang Dong couldn't help being a little angry, and took the sextant back directly, "Go and ask others first, and then play with it after you figure out how to use it."

The equipment in his hand was taken away at once, Liang Shu was stunned, and then he couldn't help blushing. How could he, a good student, have encountered such a thing in his life?Feeling ashamed and remorseful in his heart, seeing that Wang Dong had gone forward, Liang Shu couldn't help feeling even more disappointed.

The teachings of Wang Dong and the cadets continued until dusk. The sun set before his eyes. Wang Dong had not taught everyone how to use the sextant, so he could only go out of the city tomorrow to continue his research.

He directed everyone to take the catapult with oilcloth, and then rode back to Shanzhou City together, and sent the students and soldiers to the wooden shed on the school grounds to live. Wang Dong also planned to go home for dinner. When he was about to leave, he suddenly heard a shout.

"Master Wang, please wait a moment."

When Wang Dong turned his head, he saw Liang Shu running over quickly with a large pile of calculation chips.

(End of this chapter)