Chapter 277 (2/2)
“…… cheat! The launch pad won't fall Cried the little boy.
”It won't fall!” Cried the little girl.
”It won't fall!” Lin shouts after him.
“……”
The scene fell into stagnation.
Even Li Zheng was stagnant.
Even if you don't like it, you can't be a kid.
”Don't worry.” Lin yuejing turned to look at the little boy and the little girl. ”Every day there are uncles and aunts checking the launch tower repeatedly. It is absolutely impossible that there will be any problem. Even if there is a sudden storm or earthquake, and ten lightning strikes on it, it is absolutely impossible to have any problems.”
It's over!
I really joined the children's team.
The two children were instantly inspired.
”Yes
”Sister said, there will be no problem!”
”Who is she? Do you believe her?” The bald man frowned at Lin Yue Jing and said, ”how do you know? Who are you? ”
”Chen Wei, graduate student of trajectory design, Department of astronomy, School of physics, Jida; group 3, 12 Institute, No.1 Institute, Sinochem Launch Vehicle Technology Research Institute; Chen Wei, an internship student in trajectory design.” Lin Qijing lightly picked up the drink, sipped it lightly, and looked at him in a glance, ”no one knows rocket better than me.”
Once again, the scene stagnated.
Li Zheng is the most ruthless one.
Gulu Gulu spurts out a large number of titles, but still looks pale and heart doesn't jump,
is it so fierce?
The man at the next table obviously didn't understand her title.
But it was successfully bluffed.
A moment later, the bald man stammered and said, ”why did you choose the launch site here?”
”Get the maximum inertia speed and save fuel.”
”What?” ”You can't talk nonsense and teach the children blindly.”
”Well...” Lin Yue Jing waved to Li Zheng, ”Dr. Li Yi, you can say it.”
“……” Li Zheng fell into ferocity in an instant.
It's over. It's been dragged to the children's team.
But now that the matter has come, he has to be tough.
Li Zheng soured his throat and said politely, ”this Uncle, your explanation to the child just now is not comprehensive. Some of them are misleading. The launch site is located here. The primary basis is based on physical considerations. ”
Seeing that Li Zheng has a nose and an eye, the bald man will not say anything for the time being. The two children are full of expectation and listen attentively.
Li Zheng swept around and soon found a ball beside the boy's stool. He picked it up and borrowed it.
”I try to use the level that primary school students can understand.” Li Zheng held up the ball and turned it in his palms. ”The earth will rotate like this, don't you know?”The little boy and the little girl nodded immediately.
”Good.” Li Zheng picked up chopsticks, dipped in beer, and casually ordered a small spot in the ”northern hemisphere” of the ball. ”Let's assume Yuanyuan is here. This is probably Jijing's location.”
Then, he pointed a point on the equator of the ball: ”this is where Wenhai is, and the pudding is here.”
”And then, you are all smart kids, knowing that the earth rotates all the time.” Li Zheng then turned the ball around again. By dipping his chopsticks in beer, Li Zheng drew the trajectory of two points rotating one circle, which is actually two latitudes and a pair of concentric circles.
”Now, the earth has gone round.” Li Zheng showed the ball to the two children, ”can you tell me, for such a long time, is Yuanyuan turning more distance or pudding more?”
”Pudding!” Yuanyuan raised her hand and said, ”the pudding is bigger.”
”Very good.” Li Zheng nodded and said with a smile, ”so we can know that, in the same time, the pudding has turned more distance than Yuanyuan, so who turns faster?”
”Me The pudding raised his hand excitedly.
”So, even standing still, pudding's natural initial speed is much faster than Yuanyuan.” Li Zheng's hand pointed to the equatorial dot and said, ”launching a rocket from pudding has a great speed as soon as it comes up. We can use less fuel to send the rocket into space. Do you think it's wonderful?”
”Wonderful The two children clapped and screamed.
”Ha ha ha ha!” Looking at the two excited children, Li Zheng was naturally happy, ”so ah, this is the advantage of Wenhai satellite launch. It can be said that Nanhai province is basically the most favorable place for China to launch rockets. The most important reason we chose here is to use less fuel and transport heavier satellites into space. Now that you two know this, you have become little experts in physics. You can talk to your classmates when you go back. ”
The little girl blinked her eyes at Li Zheng and asked, ”brother, are you a physicist?”
”It's still early I learned a lot... ”
”Do you understand, grandfather?” The little boy said to the bald man, ”it's because of the laws of physics that we chose to launch here.”
”Go and go, I've already understood...” The bald man scratched his head and asked, ”isn't that the faster you go south, why don't the launch site let Sanya go? What can we do with Wenhai?”
Li Zheng immediately replied.
”The earth's rotation direction is from west to East. This time, a synchronous satellite will be launched. It will remain stationary with the earth's rotation, so it will also be launched to the East. To the east of Wenhai is the sea area controlled by China, which is uninhabited and easy to recover.”
”As for Sanya, there is a very low probability that the rocket will land in a residential area in the south of Nanhai province if an accident occurs at wan11001.”
The bald man sipped his wine and couldn't ask.
However, Mr. glasses was interested in it: ”I'll ask you more about the impact of Jijing and Nanhai on speed and fuel.”
”This Just a moment. I'll figure it out. ” Li Zheng raised his head and squinted his eyes. After half a second, he said, ”I only calculated that the speed of Jijing line is about 370 meters per second, Wenhai is about 460 meters, and the fuel saved is about 12%. It is because of this 12%, that huanghe-2 can become the largest carrier rocket in China.”
”Ah.” The glasses master exclaimed, ”now I understand completely. Thank you very much, young man.”
Although the bald man on the opposite side was somewhat reluctant, he could not refute a string of truth that Li Zheng could understand.
”Well Young man... ” The bald man scratched his face and asked, ”that is to say, the rocket is launched towards the sea. Even if there is a problem, it will fall into the sea. Our community must be OK, right?”
”Sure, sure, sure.” Li Zheng said with a smile, ”Wenhai launch site is a selection of thousands of carefully considered, and the design and construction team is also the most sophisticated in China. You may not care, but it is not easy for children to catch up with the great development of aerospace in their whole life. It is also a physical enlightenment for children to have a look. I just don't have any children, or I'll have to look at every full moon. ”
”All right.” Happy, the bald man took up two beer bottles and went to Li Zheng. After filling one bottle for Li Zheng, he raised his hand and said, ”let's not go. Watch the rocket launch!”
The two children jumped up at once.
The glasses master also came to dry a cup.
When Li Zheng returned to his seat, he was already drunk.
However, he found that Lin Yue Jing was hiding his face and giggling, and his face was more drunk than himself.
Li Zheng took a mouthful of vegetables and said with a smile, ”how, now I know I'm flustered?”
”Why panic.” Lin Qijing said in a low voice, ”you are really patient when you give lectures to children...”
”Hey, I'm free, too.”
”Don't you hate children and don't want them?”
”Yes, it affects learning.”
”Cluck...””What are you laughing at?”
”It's OK. It's OK.” Lin Qijing quickly picked up the cup and said, ”I'll take a sip of it too”
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