Shen Yibei had grown taller, his figure standing taller than a pine tree, and the angular features of his face gradually becoming more apparent. His already outstanding features, without the obstruction of dust, were even more eye-catching.

He looked at the younger ones, and finally at Baoya. Now four years old, Baoya's face had grown a little bigger, and she had lost some of her baby fat. Her skin was fair and delicate, like a finely carved porcelain doll.

Now she was smiling at him, her big eyes curved into crescents.

Shen Yibei looked at it, and the corners of his lips rose unconsciously.

Then I looked at Yuanbao and answered his question: "I guessed you guys might be here, so I came over."

"Brother Yibei, you are so amazing. You can even guess this." Yuanbao has always admired Shen Yibei, and now he immediately applauded when he heard it.

Then, he chattered to Shen Yibei about his uncle being able to operate a water pump: "Brother Yibei, let me tell you, my uncle is also very good. Yesterday, he..."

"...and today we came to the Yuejin Production Brigade to help them fight drought...In just one morning, we watered a whole field. They were so surprised when they saw it, they kept pulling uncle to talk to him..."

Shen Yibei listened patiently. In fact, he had already heard about this from the team members. Today, people were talking about this matter everywhere, so although he had specifically inquired about it, he also knew the whole process. It was precisely because of this that he guessed that a few children might come here in the afternoon, so he came here early.

"And, let me tell you, a few days ago we came to play by a small river near the Yuejin Production Brigade, and then Liu Dazhu, Yang Licai and the others came over and bullied my fifth brother and my little sister Xiaobao!" Yuanbao is still angry when he thinks about it now: "Then when they saw my eldest and second brothers coming, they were immediately scared and became very quiet. In the end, they even called each other idiots."

"After seeing us today, they didn't dare to say a word. Humph, if they dare to say anything again, I will find our uncle and scare them to death."

After listening to Yuanbao, Shen Yibei frowned slightly, and then wrote down the names of several people.

After talking for a while, Yuanbao and the others remembered the question they wanted to ask before, and looked at Shen Yibei and said, “By the way, Brother Yibei, have you seen a water pump?”

Shen Yibei had never seen a water pump in Kyoto before, but when he heard about Song Aiguo coming in the afternoon, he

He quietly went over to take a look. Although the distance was far, he could still see clearly. So, he nodded and said, "I have seen it."

Upon hearing that he had seen it, Wenjie quickly asked, "Brother Yibei, do you know why the water came out of the river on its own?"

"Is it sucked out with something? But what is used to suck it out?" Yuanbao scratched his head and couldn't figure it out.

"Yi...Brother Yibei, do you...know why...?" Tian'en asked curiously.

Shen Yibei thought about it. This part of what Xu Zhijin taught him recently was part of his content. He sorted out his thoughts and began to explain it to a few people: "This is because of the use of atmospheric pressure."

"Atmospheric pressure?"

"Atmospheric pressure... is... what is it?"

"What is atmospheric pressure?" Several children including Bowen Boyu were confused when they heard this unfamiliar term.

Shen Yibei said: "As long as there is air, there will be atmospheric pressure. The reason why the water in the river is sucked up is because the machine that starts the machine sucks out all the air in the pipe. Then the atmospheric pressure on the other side is reduced, and the water on the other side will flow to the place with lower air pressure."

Afterwards, fearing that the younger ones might not understand, Shen Yibei explained it to them again in detail, and finally made them all understand.

The little ones were shocked: "That's amazing! It can be done this way!"

"Wow... so magical~!"

"Brother Yibei, how do you know so much?"

"What subject is this? Can I learn this in school? I want to learn this in the future."

Shen Yibei smiled and said, “This is physics knowledge. You should be able to learn it when you are in junior high school.”

Then he added: "If you like, next time I can show you a little game about physics."

"I like it, I want to see it." Before Shen Yibei finished speaking, Yuanbao nodded vigorously in response.

"I...I want to see it too..."

"Brother Yibei, what game is this? Can I watch it today?" Although he was already very happy to be able to see it, Wenzhi was still a little anxious and wanted to see it right now.

"I haven't prepared anything today, maybe next time." Shen Yibei originally wanted to reveal a few words to them, but after thinking about it, he gave up, lest the little ones only understand half of it and become so curious that they can't sleep.

After hearing what he said, the children suppressed their curiosity and went to

Yibei and his group started playing together on the back hill.

They dug wild vegetables when they saw them, picked wild fruits when they saw them, and of course they didn't miss out on cicada shells. They played and made noises along the way, which made them very happy.

It was almost dark when the children and Shen Yibei came down the mountain together. On the way, they happened to meet Song Aiguo who was going home.

Song Aiguo saw Shen Yibei not far away, and the two met eyes. Shen Yibei nodded slightly at him as a greeting. After confirming the safety of the children, Shen Yibei did not stay any longer and turned to leave.

Song Aiguo retracted his gaze and looked at the children with a smile: "Going to the back hill to play again?"

"Well, uncle, we found a lot of good things, including wild vegetables, wild fruits, and the honey found by Brother Yibei~!" Yuanbao said happily with his head raised.

"Not bad, not bad. You've gained a lot." Song Aiguo praised with a smile.

Seeing that it was getting late, he didn't delay any longer and slowly drove the water pump towards the team. A few younger ones followed behind, talking happily all the way.

.......

After arriving home, Yuanbao, Tianen, and Wenjie excitedly ran to find Feng Guizhi, and then told her the knowledge Shen Yibei had told them: "Grandma, I know why the water came up by itself, it's because of atmospheric pressure!"

"Yes, because the air has been sucked out, the atmospheric pressure has decreased, so the water over there will come up."

"Also, that pump is..."

Feng Guizhi had spent her entire life raising her sons and grandchildren, ensuring they grew up healthy. She hadn't even been to school for two years, so how could she know about these things? However, seeing her grandchildren's happy faces, she smiled and listened patiently to their stories.

"Grandma, I want to study physics in the future. These are all physics knowledge!"

"I also think physics is amazing. I want to learn it too."

"And... and me..."

Looking at Yuanbao Tianen and the others' sparkling eyes, Feng Guizhi smiled and nodded in agreement: "Okay, study hard in the future. As long as you are willing to go, I will always provide for you."

"You're so nice, hehe."

Feng Guizhi was amused and said, "I know that grandma is good to you. When grandma is too old to walk, you must be filial to her."

"No, milk won't get old." Yuanbao went up and hugged Feng Guizhi, shaking his head and said.

Baoya on the side nodded her head vigorously while listening. Her milk would not

Getting old.

Feng Guizhi smiled and rubbed their heads: "Go wash up quickly, it's time for dinner."

“Hmm~!”

Three days later, the fields of the Yuejin Production Brigade were all watered. The entire brigade was delighted and grateful for Song Aiguo's help. They even spontaneously brought gifts from their homes to Song Aiguo as a token of gratitude.

Some picked a couple of handfuls of vegetables from their own gardens, some brought a few eggs, and some packed a large winter melon...

Song Aiguo, of course, refused to accept any of the offers and declined them one by one. However, Gao Zhifu finally invited him to dinner, along with Song Yuangang and Master Cao.

Everyone in the brigade said, "We are really grateful for this water pump and our patriotic brothers. Otherwise, with so much land in our brigade, how long would it take us to fetch water?"

"Yeah, if it were before, I would never have dreamed that our team's fields could be irrigated in just three days~!"

"It's great that technology has developed. Our country now has these good things."

"Yes, that's great. The food problem in the fields has been solved, and we can go back to the house to rest. My waist has been hurting so much these days."

"I have to say, Brother Aiguo is a truly loyal man. He's been working in our brigade for four days. I see his arms are almost peeling from the sun, but he hasn't complained and hasn't asked for anything."

Everyone else joined in, praising and complimenting Song Aiguo. Then, the topic turned to Liu Dazhui.

"It was thanks to him and his brothers that they caught the human traffickers last time. Otherwise, the Liu family..."

When the Liu family was mentioned, everyone frowned. "Chen Fengxia was really wrong. She saved her son, but she didn't even say thank you. It was all in vain."

"Oh, she's so cruel that she can sell her own daughter, and she's embarrassed about such a small thing?"

When Chen Fengxia was mentioned, everyone in the team sighed. Then, they tacitly skipped the topic and stopped talking about it.

Of course Chen Fengxia had heard that someone had come to the brigade to help fight the drought these days, but she didn't expect that the person would be Song Aiguo. Then, she was criticized by the people in the brigade many times, both openly and secretly, which almost made her angry to death.

Chen Fengxia had hardly gone out in the past two days. Who would have thought that she could hear the loud noises when she went out just now?

The team members poked her spine, and she gritted her teeth and cursed inwardly: "A bunch of chatterboxes!"

Then he said angrily: "This Song family is really haunting me. I can be linked to them wherever I go!"

But no matter how angry she was, she had no other choice but to slam the door and go back.

.......

Today, at the appointed time, the children all went to the back mountain early to wait for Shen Yibei. It didn't take long for Shen Yibei to arrive.

Several of the younger ones hurried over and asked, "Brother Yibei, have you prepared your things?"

"What little game are you going to play for us?"

Baoya stood aside and looked up at Shen Yibei curiously, blinking her big eyes in anticipation of his game.

Shen Yibei rubbed her head, then stretched out his other hand to reveal what was in his hand.

The author has something to say: Thank you to the little angels who voted for me or irrigated nutrient solution between 2021-08-28 23:57:51 and 2021-08-29 23:54:26~

Thanks to the little angel who cast the mine: Eat an orange and get 1;

Thanks to the little angel who irrigated the nutrient solution: Are you Xuanxuan? 10 bottles;

Thank you very much for your support. I will continue to work hard!