Ji Cheng wanted to inquire about his brother's situation, but Lantian Camp was a military camp and could not be approached easily.
Jicheng is just a small person, and his position is only a pavilion chief. How can he easily enter the Lantian Camp?
The grandfather and grandson discussed it for a long time before finally paying attention.
Ji Changnai was a veteran of the Chu campaign. He had experienced Li Xin's campaign and Wang Jian's campaign.
Ji Chang served in Wang Jian's army due to his outstanding personal abilities.
In Chelin, there were many old soldiers who attacked Chu like Ji Chang.
Several of them even drove for Wang Jian, the Marquis of Che. Hmm... Even though he is the co-pilot, he can still be regarded as a soldier.
"I once served in Chehou's camp, and Sheng, Sun, and I used to drive for Chehou. My eldest father went to beg to see if we could meet..." Ji Chang hunched over and spoke.
Sheng, Sun, and others are lonely old people in the village.
The heirs died in the war, the daughter-in-law remarried, and she could no longer have children. In short, only the old man was left in the family.
It is not uncommon for them to be like this in this era. After Qin destroyed the six kingdoms, the war never stopped. He conquered the Xiongnu in the north and conquered Baiyue in the south.
There were losses and losses in the process, and the pace of Qin's expansion was paved by the soldiers.
This is the case for Sheng and Sun. Their children died on the battlefield and they were unable to have more children, so they had to cut off their heirs.
However, both of them were men of meritorious service in the war against Chu. Their knighthoods had reached the fourth level and were exempted from corvee service. They had servants at home, so their lives were not very difficult.
Sheng, Sun, and I started to have weird tempers after they lost their heirs. However, they were both meritorious men and their titles were not low among the people in this village. They once drove for the Marquis of Che, unless they broke the law. Even the village elders find it difficult to restrain them.
"In the past, Sheng and Sun Po were very fond of Si'er, and I thought they would help her in the future," Ji Chang said.
Ji Si has been liked by people since he was a child. Even lonely old people with weird tempers like Sheng and Sun like Ji Si. Only Ji Si can have a rare smile. As a picked-up child, Ji Si has a kind of personality that is very popular among people. Painful feeling.
When I was a child, I would go to one house in the village and sit in another, and sometimes I would be stayed at home by others.
Ji Chang even knocked on doors looking for Ji Si who was staying overnight.
Ji Chang knew that although he had served under Chehou, his love that could not be reached had gone far away.
Similarly, a high-ranking person like Chehou may not remember Sheng and Sun who used to drive for him, but the relationship is always closer than him.
Having made up his mind, Ji Chang leaned on crutches and opened the door of their courtyard next to each other...
After so many years, Ji Chang still feels guilty.
Although Ji Si was a picked-up child, how could he not love him? How could he not be treated as his own grandson?
No matter what he was doing at home, he was always fair, but when it came to enlisting, it was really hard for him to be fair.
…
On the other side, in the Lantian camp, Wang Li asked to see his father Wang Bi, told Zhao Si about making salt, and informed his father Wang Jian that he wanted to report to the First Emperor urgently.
Although Wang Ben was dissatisfied with Wang Li, he did not dare to neglect his father Wang Jian's words. Without any hesitation, he wrote the urgent memorial, selected his soldiers to start the mission, and set off directly from the Chidao of Lantian Camp, heading straight for the First Emperor to drive away.
As for Zhao Si... he was squatting and doing things with a group of craftsmen.
The first thing I got out was the vernier caliper.
Thanks to the First Emperor's unification of weights and measures, all parts of the country are now unified in accordance with the Qin State's weights and measures, so weights and measures tools such as vernier calipers can be used throughout the country.
The length conversion in the Qin Dynasty was also in decimal.
One zhang equals ten feet.
One foot equals ten inches.
One inch equals ten points.
During the Qin Dynasty, one foot was approximately equal to 23.1 centimeters.
The smallest unit on the vernier caliper is minutes, which means the highest accuracy can reach 0.231 centimeters.
The accuracy of about two millimeters is impossible to achieve any lower, because it is difficult to be more precise with today's weights and measures.
Because the steel smelting technology of this era was too backward, the first vernier caliper of the Qin Dynasty in Zhao Si's hands was made of bronze.
He pushed the vernier caliper skillfully, got a wooden block to hold it for measurement, and explained the principles and counting methods to the craftsmen while measuring.
…
As a result, Zhao Si was stumped by the mathematical expression methods of this era.
It’s not that there is no mathematics in this era.
In fact, multiplication tables already existed during the Spring and Autumn Period and the Warring States Period.
And thanks to the fact that some of the Mohists settled in Da Qin, the level of military craftsmen in the Qin Dynasty was actually pretty good.
Especially the military craftsmen of Lantian Camp, which is the gateway to Xianyang.
Basically, they all have a rough understanding of some mathematical calculations, and the popularity of multiplication tables is not low. The problem is that the expression and operation of numbers, especially decimals, are too troublesome. When it comes to weights and measures, Zhao Si has a big head to do the calculations.
Zhao Si misses modern Arabic numerals a little bit. It is an indisputable fact that Arabic numerals are indeed easy to use.
Zhao Si simply chose to mess it up and let the craftsmen study the vernier calipers themselves, while Zhao Si himself planned to figure out Arabic numerals and various formulas.
Zhao Si's mathematics level is not high, that is, the mathematics level of a high school graduate.
I don’t know how to do advanced calculus or anything like that.
Seriously speaking, after passing the senior year of high school, Zhao Si's mathematics level dropped rapidly, and by the time he left school and entered society, he had almost forgotten about it.
In my previous life, I would sometimes be stunned for a while when I saw questions from elementary school students.
But in this era of average-level addition, subtraction, multiplication, and division, Zhao Si can actually be considered a master of mathematics.
"Unexpected, unexpected..."
Zhao Si wrote a simplified version of one, two, three, four on the ground.
"What are you writing?" A voice came from behind him, and Zhao Si knew it was Wang Li without turning his head.
"Numbers, one, two, three, four..." Zhao Si explained.
"Where did this one, two, three, four come from? Did you see it overseas?" Wang Li had never seen this one, two, three, four that looked like a ghostly drawing.
"Okay, I've learned to answer quickly!" Zhao Si smiled.
Because Zhao Si is not so shameless to say that he invented something by himself, and he is too lazy to explain, when faced with Wang Li's questioning, Zhao Si usually shirks his ability to go overseas to learn more.
Ask me how it happened? I learned it while traveling around the world.
So much so that Wang Li learned to answer questions quickly.
"What are the benefits of this number?" Wang Li sat cross-legged.
The two were already friends, and they got along relatively casually, so Wang Li didn't need to maintain a kneeling posture, as long as his legs were not spread apart and the middle door was wide open, it didn't matter.
Wang Li looked curiously at the ghost-drawing talisman written by Zhao Si on the ground.
Having experienced salt, plow, etc... Wang Li already knew that if Zhao Si squatted on the ground and worked like this, he would probably find something good.
"Easy to use!" Zhao Si smiled and looked at the Arabic numerals on the ground.
Figuring out Arabic numerals, fractions, decimals, functions, equations, and various formulas should be able to bring about earth-shaking changes in ancient mathematics.
Of course, there is another very critical issue.
This thing...he is so eager to learn!
(Checked, please help me catch the bug again.)
