"Xiaoying, don't run around alone when you go to Shangjing. Do you want to be with your brother? Do you know if you want to be with me?"

My son is worried about his mother. Lu Yi is not worried about his parents when he is out now. Instead, Lu Ying is traveling so far away from the province for the first time, so the two elders are always worried, and they hold her hand and keep instructing her.

"I know, mom, don't worry. We are going to catch the plane. I'll send you a video when I'm here."

After hearing the instructions from his parents for a long time, Princess Lu Ying finally said goodbye to Lu's parents with a little impatiently, and urged Lu Yi, who was watching the show next to her, said: "Brother, let's go. If you don't catch the plane, be careful that Sister Yashan and the others will not forgive you."

"Xiaoyi, take good care of my sister."

The brother and sister walked out the door, but Lu's mother still shouted to Lu Yi with concern. After receiving Lu Yi's affirmative answer, she closed the door with Lu's father a little sad and walked towards the balcony.

At the 13th year of New Year, the atmosphere of New Year, which was already becoming less and less year by year, was completely declining at this time. More than half a month after returning, Lu Yi attended several parties and hosted Zhang Liang and the others. After having sex at home twice, almost all the otaku stayed at home to read books and formulated scientific research plans.

On the contrary, Princess Lu Ying kept showing the show. With the new mobile phones and tablets bought by Li Yashan and others, and the red envelope money given by Lu Baiyi's brother, she was crazy until she stayed at home for a few days after staying quiet on the eighth day of the Chinese New Year, she urged her to set off.

It is past 1:00 noon now, and Lu Yi and his sister are going to Meixian Airport to catch the flight to Beijing at 5:00 pm.

"Brother Liangzi, Sister Lin Qian."

Walking downstairs, Zhang Liang drove the car to take Lu Yi and his sister to the airport. The little princess ran to the front of the car and said hello happily. Then she put down her suitcase and watched Lu's parents on the balcony upstairs. The brother and sister got in the car and rushed towards the airport.

"Lu Lu, have you set off? I'm ready to board the plane."

"Prepare to go to the airport. If the flight is not late, it will arrive at Shangjing at 8 o'clock in the evening."

As soon as the car drove out of the community, Lu Yi received Zhang Qing's WeChat message, saying that Li Yashan was already in Beijing for the New Year, and Professor Lin's plane took off at noon and could arrive in less than half an hour.

Now only Lu Yi and Zhang Qing are left, one takes off from Meixian and the other takes off from Shancheng.

After chatting with Zhang Qing for a few words, Lu Yi opened Li Yashan’s WeChat: “Yashan, have you arrived at the airport? Xiaomeng should be coming soon.”

"I've just parked the car. Be careful when you drive there. Don't worry, I'll do it." Li Yashan replied to a message. Everyone was not familiar with Kyoto, so she would come to pick her up.

"Yeah." He reached out and pushed Princess Lu Ying's head away, and Lu Yi replied with the word "Yeah". Turn off the screen of the phone.

"Brother, do I want to prepare some gifts for Sister Yashan and the others?" Seeing the chat between my brother and his possible future sister-in-law, Princess Lu Ying's eyes turned and seemed to have thought of something.

Lu Yi glanced at his sister, not knowing what she was thinking, so he closed his eyes and said, "My mother is ready in the suitcase, and you can give it to you Sister Yashan and the others at that time."

After knowing that Li Yashan, Lin Meng and Zhang Qing and the others went to Beijing together, Lu’s parents had already thoughtful about things. Except for Lu Yi’s two sets of clothes and a laptop, the rest of the big suitcase was filled with various Hakka specialties. If Lu Yi had not stopped him, he would have even prepared the gifts given to Li Yashan and the others.

"Lu Lu, who is Yashan? Isn't it Professor Lin Menglin?"

Zhang Liang, who was driving, heard the conversation between the brother and sister and asked in confusion. He only knew Professor Lin who had been exposed online, but he didn't know Li Yashan and the others.

"In addition to Sister Lin Meng, there are Sister Li Yashan and Sister Zhang Qing. The three sisters are my alternative sister-in-law."

Lu Yi did not answer, but Lu Ying said it proudly. She admired her brother and Lin Meng and others' relationship. If it were outsiders, they would feel like animals, but as a family member, Lu Yi, they would only feel proud.

As for who Lu Yi was with in the end, Princess Lu Ying and Lu’s father and mother would not interfere. The little princess thought that her brother was very powerful, her father was educated and could not hurt others, while Mother Lu simply thought that it would be best that the three of them were all their daughter-in-law.

“3 people?”

The green light in front turned red. Zhang Liang let go of the accelerator and slowly removed the brake and stopped. Then he continued: "Professor Lin and the others knew about this situation?"

"Of course!"

Lu Ying said proudly, then asked: "Does Brother Liangzi be very envious?"

"I envy...ah, I don't envy you, what do I envy! It's enough for me to have your sister Lin Qian alone. God is already very kind to me."

Zhang Liang subconsciously answered, and instantly felt a murderous aura flashing by his side, and then he reacted and quickly changed his words...

At 4:00 pm, Zhang Liang sent Lu Yi and his sister to Meixian Airport. On the way, the news that Professor Lin arrived safely and met with Li Yashan had been sent.

Princess Lu Ying, who had not taken a plane to the airport, followed Lu Yi, looking around in the airport like a curious baby. After Lu Yi took the boarding pass from the automatic check-in counter, he immediately took out his mobile phone and took a photo to post it on his circle of friends.

The brother and sister passed the security check time. It was already past 4:30. While waiting for boarding at the boarding gate, Lu Ying stood curiously in the glass window and looked at the plane that was taking off. After carefully looking at the takeoff of several planes, he ran back and asked Lu Yi in a low voice:

"Brother, isn't this plane a jet? Why don't the engines have jets or fires?"

"Not all jets are fire-breathing. The engines of civil aviation passenger aircraft are large duct turbofan engines. The main source of power is low-temperature compressed air from the external duct, rather than high-temperature combustion air from the internal duct.

The main reason for the fire spitting phenomenon is that the internal channel fuel is insufficient combustion. After the fuel in civil aviation engines is burned, it is not directly injected and discharged, but is only discharged after the heavy compressor has completed the work.

When the fuel is discharged, the temperature has been completely burned and the temperature has dropped, so you can't see the fire spitting phenomenon.

In fact, not only civil aviation engines cannot see the spitfire phenomenon, but fighter engines cannot see the spitfire even when they are not in high horsepower.

In addition, the thermal efficiency of civil aviation engines is higher than that of fighter engines. The same fuel can obtain more thrust, and the compressed air is used to output as much as possible in the engine, so there will be no severe jetting."

Lu Yi turned the notebook to a new page and casually drew a schematic diagram of the civil aviation engine and the fighter engine on it, drew air flow lines and simple work diagrams on it, explaining to his sister the difference between the civil aviation engine and the fighter engine.

"Where is the space rocket engine?"

Lu Ying nodded in a vague way, blinked her eyes and continued to ask curiously.

"Space rocket engines are also a type of jet engines that use the impulse principle. However, unlike jet engines in the atmosphere, they come with propellant and do not use external air.

When the fuel is burning in the combustion chamber, the uneven pressure will generate a part of the kinetic energy. When the high-temperature gas generated in the combustion chamber enters the conical or bell-shaped nozzle, the pressure will expand. The expansion pressure will be converted into thrust when it acts on the inner wall of the nozzle..."

Lu Yi drew a simple diagram of the rocket engine on his laptop. From childhood to adulthood, as long as his sister asked about his knowledge, he would do his best to explain and answer questions.

It can be said that he was able to get into the junior high school entrance examination, and there was part of the contribution of Princess Lu Ying, because all kinds of strange problems from his sister forced him to find materials, which stimulated a stronger desire to learn.

"Host, your sister's scientist potential has increased, from 79 to 82.2."

Suddenly, the system made a prompt sound in Lu Yi's mind, and the content of the prompt made Lu Yi stunned.

What is the potential of 82.2 scientists in the first year of high school?

Lu Yi was shocked inexplicably. You should know that he had been hanging his head in the past few months and was devoted to studying and research. The scientist's potential has not exceeded 90. However, his madman-like sister since he was a child now has 82.2.

From the system, he already knows that everyone's scientist potential is different in different periods and learning stages. It will change with age, mentality, personality, thinking, and the amount of knowledge you have mastered.

After this period of data collection and analysis, Lu Yi determined that the potential value of the undergraduate study stage was the most stable. At that time, the thinking pattern had almost been fixed, the personality had been formed stably, and the amount of knowledge had reached the threshold for scientific research.

Now my sister is still in the first year of high school and reaches 81.2. It can be foreseen that the knowledge after completing her undergraduate studies is definitely not less than 90. If she can put her mind away and focus on learning and research, she may not be able to reach the level of Lin Meng and Zhang Qing, or even surpass it.

Is there a great scientist in our Lu family?

However, when he saw that he had explained the general knowledge of the three engines and satisfied his curiosity, Princess Lu Ying ran to the window and watched the plane take off and land, his happy smile put away his mind to strengthen the discipline training.

I was cheated by the system and embarked on the road of scientific research. My sister would rather let her grow up happily and choose her own life...

"System, you're not honest."

After making a decision in his mind, Lu Yi began to find system trouble in his mind.

This low-force system does not usually meet people with 85 or above and will not speak out at all, but now it suddenly tells itself about the changes in its sister's scientist potential, which is obviously ulterior motives.
Chapter completed!