After eating and drinking, neither Li Zheng nor Lin Yujing had any intention of going home, so they simply walked to the beach and walked and chatted under the stars and the sea breeze.

Even here, you can still see the brightly lit launch tower five kilometers away.

Lin Yujing, who was drunk on alcohol, couldn't help herself. She stood on the beach and started gesticulating and pointing. After all, no one knew rockets better than her.

To the uninitiated, the launch of Huanghe-2 is not much different from every previous rocket launch.

But for Lin Yujing, who has been at the Aerospace Research Institute since she was in her mother's womb, this moment is full of historical significance.

Once successfully launched, Huanghe-2 will become the top five heavy-lift launch vehicles in history and the top three in active service in terms of carrying capacity. It will also become an important milestone in the history of China's aerospace development.

With Lin Yujing's guidance, behind this launch, a history of human spaceflight development slowly unfolded in front of Li Zheng.

There is only one theme in this period of history——

Send heavier things to the sky.

To evaluate the carrying capacity of a rocket, there are usually two data.

The first is low-Earth orbit (leo) transportation capacity.

The second is geosynchronous orbit (GTO) transportation capacity.

The former requires an orbital altitude of mostly within 2,000 kilometers, while the latter needs to send satellites to a deep space of 36,000 kilometers, so the GTO's transportation capacity is mostly within half of Leo.

Taking the GTO as a reference, the highest record in history has been held by the Saturn V of the United States for half a century.

This is the historical limit of launch vehicles.

It is also the heaviest rocket in history. Its take-off weight is as high as this rocket, which carries the limits of human beings. It is truly defiant.

It carries thousands of tons of chemical fuel and uses a barbaric force just to send a satellite that is 1.6% of its own weight into deep space.

The former Soviet Union seized the time to launch the equally famous N1 launch vehicle. However, all four test launches ended in failure.

But even if it was successfully launched, the GTO's transportation capacity would be no more than that of its predecessor. As the Cold War cooled down, the space race between the superpowers also came to an end.

Those who go against heaven have lost the meaning of going against heaven.

After completing its last mission in 1973, the Saturn V was retired.

The next big thing of the former Soviet Union, the "Energy", was successfully launched in 1987, reaching a GTO carrying capacity of 22 tons.

These records have yet to be broken.

Today, although the 14-ton capacity of Huanghe-2 cannot surpass this record, it is qualified to challenge it.

This launch will triple the capacity limit of China's launch vehicle across the ages.

There will always be those who go against heaven and act against it.

"This is mother's mission." Lin Yujing stared at the brightly lit transmitting tower on the other side of the bay, gently lifted the air in her hands, "Send heavier things to the sky.

Li Zheng recalled this period of history and imagined the moment when the rocket took off.

At this time, he just wanted to say.

Your mother is awesome.

But I still endured it.

In order not to lag too far behind the Lin Yujing family, he had no choice but to establish the persona of Lao Li.

"My dad doesn't have his mission." Li Zheng stood on the rock with his hands behind his back. "That is to cut out more tumors, and of course, to damage the patient's nerves as little as possible."

"..."

"Ah, they are all great people." After Li Zheng sighed, he suddenly remembered something, "But I remember you said that instead of betting your life on such a task, it is better to look at the stars more, so you

I just chose the Department of Astronomy.”

"Well..." Lin Yujing's head gradually dropped, "Even if my mother can work until she is 70 years old... Even if she can triple her transportation capacity, three times more, so what... Don't talk about her, even if she is

The biggest limit I dare to imagine in this life is to land manned humans on Mars..."

Li Zheng turned his head and asked with some confusion: "But you still shed tears when you look at Yellow River No. 2..."

"Yes...but I also know...you won't be able to fly very far in your lifetime..." Lin Yujing clenched her fists and looked down at the waves at her feet, "You are probably going to criticize people again...

"

"No, no, no... I understand now that no one is qualified to guide other people's lives." Li Zheng sighed and jumped off the rock, "You are just too smart. It's like solving a problem. When something happens,

You will immediately come up with extreme results. When you look at aerospace from your perspective, you can always see through the struggle and despair...but you like it very much..."

Li Zheng said, putting a hand on Lin Yujing's shoulder.

"When we had a heart-to-heart meeting on the basketball court, you said that your troubles were the 'scale of time and space'."

"Now, I probably really understand."

Lin Yujing trembled and raised her hand to push him away, but her hand slowed down in mid-air.

However, Li Zheng had no choice but to withdraw his hands long ago and returned to the posture of standing with his hands behind his back.

"Scumbag..." Lin Yujing cursed secretly and asked, "I remember you said at that time that your trouble was too little time and too much knowledge."

"Yeah, I forgot about it." Li Zheng put his hands behind his hands and laughed, "You are really young and arrogant to say such things."

"Well..." Lin Yujing kicked the sand and said, "I'm starting to understand what Zha Yuan said."

"Haha." Li Zheng chuckled, "I don't believe it."

Lin Yujing ignored him and stood there, watching the waves roll by, letting her shoes sink deeper and deeper into the sand.

"If there are many roads."

"If I say it, I will see the end point at a glance."

"Then choose the most satisfying path."

"As for you, as long as you choose a path, you will just walk on it."

"You can't see the end at all, and you don't care about the end."

"Wherever you can go, that's the end."

This last sentence instantly gave Li Zheng goose bumps.

Damn it...is it the difference between 55 points for the essay and a perfect score...

"I...I believe it..." Li Zheng said tremblingly, "There are people who understand Rockets better than you, but no one understands me better than you."

Under the moonlight, Li Zheng couldn't see Lin Yujing's face clearly. He only knew that she turned around and ran back: "Who wants to understand you? Let's drive!"

"Haha." Li Zheng smiled and chased after him, "If I don't, I'll stick to it."

"It's so disgusting. I only stick with Xiao Ke and Meng Xi."

"But Xiaoke also sticks with me."

"Scumbag, I won't stick to her anymore."

…

After returning home and saying good night, Li Zheng helped Lin Yujing close the bedroom door.

Then each took a bath, went to bed separately, and slept separately.

Everything was natural, upright and without any embarrassment.

On the other hand, the other two people got into trouble after finishing their work for the day.

[Li Yi: Are they asleep? 】

[Shen Tinglan: I didn’t ask.]

[Li Yi: I didn’t ask either.]

[Shen Tinglan: What’s your question? 】

[Li Yi: No, you ask.]

[Shen Tinglan: It’s hard for me to ask.]

[Li Yi: I...forget it, I'll ask.]

…

[Li Yi: He didn’t reply to me, so he must have fallen asleep. 】

[Shen Tinglan: Jingjing came back to me, she’s not asleep yet.]

[Li Yi: So...hey...]

[Shen Tinglan: Teacher Li, why are you sighing? 】

[Li Yi: I... suddenly thought of a tumor, spanning the spine and chest. 】

[Shen Tinglan: The scale of doctor chatting is really scary (surprised face)]

[Li Yi: Okay, okay, you should also take a rest and let each other know about news tomorrow. 】

[Shen Tinglan: Okay, I will work hard tomorrow, Teacher Li, to take care of them. At times like this, I feel guilty even opening WeChat. I have to work on site all the time, so that the comrades can be emotionally stable. 】
To be continued...