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Guan Tong raised her head, she rubbed her aching hands, then looked down at the paper in front of her, on which were crookedly drawn abacus and fingering formulas.

Who would have thought?

When Guan Tong tried to understand it, he discovered that people's calculation methods in this era are relatively simple. The most common one is counting chips, and there are also abacus calculations, but they are not yet formed.As for the abacus, this was once one of China's big killers. An important reason why Arabic numerals could not be popularized in China at the beginning was because we had a set of mature calculation aids - the abacus!It was not until the appearance of computers that abacus really withdrew from the stage of history.When the new China was building the first, a lot of calculation work was also undertaken by the abacus.

And now... not only does she have to draw the abacus, but more importantly, she has to recite the formulas of the abacus silently! !

You should know that the abacus can not only calculate simple addition and subtraction, but also multiply, divide and open any power.

Guan Tong covered his face, almost crying.She learned it in the first grade of elementary school. There are mobile phones and computers behind. Who remembers how to count.

She is a liberal arts student, why should life be so cruel to her?

But in the beginning, in order to teach Wei Nanfeng to memorize as much as possible, Guan Tong deliberately studied the method of memory, otherwise, she would never be able to memorize it...

"Oh..." Guan Tong sighed, and she read it again, "One up one, two up two, three down five down two..."

After confirming that it was correct, she handed this piece of paper to Lin Yun who was beside her: "Let the Ministry of Industry make this as soon as possible. Our settlement will be much faster..." She thought for a while, and then asked, "The previous Has the recipe been collected yet?"

"Well, according to alchemy Taoists, the alchemy furnace has exploded. It's more powerful than ordinary pills." Lin Yun nodded, "The sound was so loud that I almost couldn't hide it. Angry news."

Guan Tong nodded, and she rubbed her shoulders: "Put the powder in an iron cylinder, and seal it with iron sharp weapons. When it explodes, the power will be even greater."

Lin Yun looked at Guan Tong in astonishment: "Miss Guan, you...is this also something from your... that world?"

Guan Tong laughed: "No... that's true. This is something that happened in my world hundreds of years ago. In my world... one drop, not a single city will be gone."

Lin Yun was shocked, and Guan Tong's eyes flashed a little nostalgia: "But because of this, everyone is afraid of each other, and a large-scale war has never happened. I am afraid that everyone will end together... But human greed is always constant, even if a large-scale war did not happen. , even if life is convenient and you go to heaven and earth, you still have to fight constantly." She thought about it, "Actually, it's pretty much the same."

"Human nature is eternal." Lin Yun said.

"That's right." Guan Tong nodded, "One more thing, I need to find some rice seeds." She described Champa rice in detail, and gave Lin Yun the general direction of life.I don’t know if there are sweet potatoes and corn in this world, but because the mountains and rivers are completely different, Guan Tong dare not take risks, but Champa Rice has a clear goal, and as far as she knows, Da Zhou has always had the custom of planting rice, maybe she can still work hard .

Of course, the local rice seeds can also be developed, some agricultural knowledge... She silently recalled the books she had memorized before.Although chemical fertilizers cannot be produced, can biological fertilizers still be made?She suddenly lamented the erudition of the ancients, and the Chinese really love writing books. "Qi Min Yao Shu", "Mengxi Bi Tan", "Creating French Style", "Heavenly Craftsmanship", "Wu Jing Zong Yao"...

Previously, Wei Nanfeng thought that as an emperor, he didn't need these things.But it was only when she traveled back that she realized that being an emperor was not a conspiracy in the harem, or a struggle for power in the court.

Everyone's life and death hang heavily on Wei Nanfeng's body.

As small as an official's fear that his name would need to be tabooed and wrote a letter, as big as every year's floods and droughts, river repairs, and piles of piles all need Wei Nanfeng to make decisions.

Following Wei Nanfeng's side, Guan Tong saw the luxury of an emperor for the first time, and also felt this heavy responsibility for the first time.

Guan Tong lightly flicked the pen and paper in his hands. She and Wei Nanfeng lived deep in the palace, and their food and clothing were the best in the empire, but this one was the best, for everyone, every tiny The hands and blood and sweat of many people are accumulated bit by bit.

"If you want to wear a crown, you must bear its weight." Guan Tong looked out of the window, and the window was quiet. She couldn't hear Hu Qiming chirping at the far border, she couldn't hear the academy student Lang Lang reading, and she couldn't see the farmer waving It was sweating like rain, and the sound of women picking mulberry and weaving cloth could not be heard.She slowly clenched her hand.It was she who gave Wei Nanfeng what a prosperous dynasty should look like, so she should also shoulder this responsibility so that this vision can become a reality instead of a castle in the air.

"I still need a group of people." Guan Tong looked at Lin Yun again, Lin Yun raised his eyebrows, and Guan Tong laughed, "I'll teach them myself."

"This matter..." Lin Yun thought for a while, if Wei Nanfeng would agree without hesitation.But Lin Yun is not good enough, she can trust Guan Tong, but she also believes that people will change.Confidants are fine, but the dead warriors cultivated since childhood are another concept, "What do you want them to do?"

"I will teach them astronomy, geography, and computing knowledge, and I will let them change the world." Guan Tong said, his eyes far away, "Some of them will travel to every part of this world, to see the wider world, to Look for more resources; some will stay here, build dams, improve fertile land, and bring more benefits to Dazhou."

Lin Yun didn't know what to say for a while, but just looked at Guan Tong.

But Guan Tong laughed: "The productivity is insufficient, and many things are unsustainable. We need to work hard to move forward." She blinked at Lin Yun as she spoke, and changed back to that pure and kind lady Guan in an instant, " I shall do my best."

"I...I will report to the saint..." Lin Yun thought for a while, but was a little frustrated, "Forget it, the saint will definitely agree."

She said with a melancholy face: "Miss Guan, if one day you are proud of yourself, you must remember the saint's kindness to you."

Guan Tong's knowledge and things do not belong to this world, Lin Yun has already felt deeply.If it were another person, Lin Yun would rather not change the world, but kill Guan Tong, lest Guan Tong fall into other people's hands and make wedding clothes for them.

But Guan Tong is the sweetheart that the saint has been thinking about for more than ten years.

Lin Yun could only sigh, and after saying this, she even thought about whether to insert some of her own people among the people Guan Tong said.She has no relatives, but there are domestic slaves in her mansion, and the deeds of those children are all in her hands, so she is not afraid to find out.

When Guan Tong heard this, he rolled his eyes with a smile: "National Teacher."

"Don't worry, Wei Nanfeng is the motivation for me to be here and to do all this."

Lin Yun's heart shook, she looked at Guan Tong.Guan Tong's eyes were pure, she didn't seem to feel anything thrilling about her words.But Lin Yun just felt very shocked. She pursed her lips, looked down at her hands, muttered something in a low voice, and then hummed.

The two got together and talked for a long time.

Lin Yun was handed over to Guan Tong by Wei Nanfeng. Although he looked carefree, he was really reliable in his work.What's more, because of Lu Qiong's incident, Lin Yun wanted to numb himself with busy work, so he devoted himself to it for a while.

When Lin Yun left, it was already late, and it happened that Wei Nanfeng came back in the evening sun.As soon as the two met, Lin Yun hurriedly saluted.Wei Nanfeng looked at Lin Yun, then at the room with the door wide open, and frowned: "You just came out?"

"Exactly." Lin Yun and Wei Nanfeng got used to getting along, she smiled at Wei Nanfeng, "Miss Guan has arranged a lot of affairs, the sage doesn't need to keep me for dinner..."

Before he finished speaking, Wei Nanfeng saw a distorted jealous expression on his face: "I stayed with my sister for a whole day..."

...Saint, you are overly emphasizing sex and despising friends. Am I not your childhood sweetheart?

Lin Yun felt that his heart had been stabbed again and again, and immediately looked at Wei Nanfeng mournfully.Wei Nanfeng didn't realize it, her eyes were attracted by Guan Tong who appeared at the door.

Guan Tong came striding over, glanced at Wei Nanfeng and knew what she was thinking, and was immediately annoyed and funny: "After all these things are arranged in one day, I'm afraid the national teacher will not be dangling in front of my eyes for ten and a half months."

Wei Nanfeng immediately opened his smile, and looked at Lin Yun kindly: "It's really hard work, why not have dinner together tonight. If you want money or someone, just tell me."

Lin Yun: "..."

No, her wounded heart can no longer heal.

Before Lin Yun could speak, Guan Tong had already looked at Immortal Guangzhi. She pulled Guangzhi towards him, turned to Wei Nanfeng and said, "I still have something to tell the young supervisor, you should eat first."

Wei Nanfeng: "..."

She stretched out her hand towards Guan Tong, and Guan Tong had already pulled Immortal Guangzhi past her.Immortal Guangzhi gave Wei Nanfeng a helpless look, coughed lowly, withdrew his hand, and slowly followed behind Guan Tong.Wei Nanfeng watched the two people disappear in front of her eyes quickly, and then she heard a pop, Wei Nanfeng turned his eyes, and saw Lin Yun covering his mouth, his eyes were bent: "Saint, I didn't say anything."

Wei Nanfeng: "..."

She somehow felt like shooting a rock at her own foot.She gritted her teeth and grabbed Lin Yun's shoulder: "Come and tell me what my sister said and what she is going to do."

Lin Yun lamented: "That would be a long story."

"Then let's make a long story short." Wei Nanfeng raised his eyebrows, showing his majesty.

Lin Yun thought for a while, and chose the most important one: "I'll send someone to rush to work on the new weapon immediately, it's easy to carry and easy to use, and I think the battle should be worry-free."

Wei Nanfeng was taken aback, looked at Lin Yun, and after a while, she whispered, "Did sister say that?"

"That's right." Lin Yun laughed, "The people's livelihood and military industry, Guan Niang is good at everything. The sage really found a treasure."

"... Where did I dig it." Wei Nanfeng said, she looked at the place where Guan Tong disappeared, "What can I do."

It was like a dream, in which the fairy took pity on her, but she was just that humble and despicable mortal.