Genius is just the threshold for me!

The next day was Wednesday.

Lin Dong got up early, ate breakfast, grabbed his schoolbag, and headed out to school.

"Lin Dong!"

I had just walked down to the flower bed on the first floor when a shout came from behind me.

Xu Qingling ran out wearing a shirt collar and a summer schoolgirl-style dress. The skirt, which reached her knees, fluttered in the breeze as she ran.

"How was yesterday?" Xu Qingling ran up to Lin Dong and stood in front of him, almost leaning against him, asking with a double meaning.

"Great, the fever has subsided."

Lin Dong nodded in reply. Anyone who didn't know better would think that Xu Qingling was asking about his "cold" and sick leave, but only the two of them knew that she was actually asking about the J-16D and the Howler electronic warfare.

"Are you wearing new clothes again today?" Lin Dong asked with a smile, looking at Xu Qingling's dress.

"Yes, I have new clothes now."

Xu Qingling nodded, then held up her hand to show off, beaming with delight, "I've grown another centimeter or so in the last two months, almost 2 centimeters taller than you now!"

"That's it, we're doomed!"

Lin Dong said exaggeratedly, "Next semester, you'll be sitting at the very back."

"That's even better. I can sit in the back and see who's not following the rules at a glance!" Xu Qingling replied with the authority of a class monitor.

Although a new class committee election was held this semester, her position remained unshakeable, and she was re-elected as class monitor with an overwhelming number of votes.

"That's amazing! Class monitor is the best!"

Lin Dong replied with a smile, and the two chatted as they walked out of the community gate.

After a short while, Xia Ran, Huang Qingyao, Su Yue, and the others came out one after another.

"Is Lin Dong's cold better?"

Huang Qingyao came out and saw Lin Dong standing next to Xu Qingling. She asked with concern and curiosity, "Aren't you usually in good health? I don't think I've ever seen you catch a cold or get sick in the summer. What happened this time?"

"no way."

Lin Dong shrugged helplessly: "Even the immune warrior has his moments of weakness."

Because of the blessing of his soul vision on his body, his neuronal and cellular activity were enhanced, and he has not been sick since the second grade.

Except for the occasional winter when the warmth of the blankets is too strong and I oversleep in the morning, so I simply don't want to go to school, that's when I ask Comrade Zhang Xiali to help me call and ask for a "cold" sick leave.

At the same time, because of his improved control over his body, even if he uses a computer screen to do things every day, such as reading papers and playing on his phone, his eyesight is not affected at all. As long as the weather permits, he can easily see the scenery several kilometers away. He even once did a pilot's vision test out of boredom and broke the record.

"Great news! Brothers and sisters, fantastic news!"

At this moment, Li Tao ran out from the side, looking surprised and excited, and said: "Shenyang Aircraft Corporation's J-16D electronic warfare aircraft has been developed. Yesterday evening, one of the fighter jets chased and shot down six American Growlers."

"Really?"

Su Yue waved her hand, somewhat politely declining, and said, "Didn't you say last time that Shen Fei's chief engineer and two core deputy chief engineers were still recuperating?"

How come electronic warfare aircraft have been developed so quickly, and one can even take on six Howlers... Could this be another piece of fake news about hypersonic aircraft?

"It's true! This time it's absolutely true!"

Li Tao excitedly said, "There were fishermen in China who happened to be only a few hundred meters away and took photos. Now the photos are going viral. Our J-16Ds are chasing six Growlers like chickens and dogs, rushing them toward their Nimi aircraft carrier..."

talking.

Li Tao took out his phone and showed several photos he had saved.

"Holy crap—is this for real?"

Zhang Yihao came out from the side and saw a photo on Li Tao's phone of a silver-gray electronic warfare aircraft chasing six light-gray electronic warfare aircraft. He couldn't help but widen his eyes.

"Shenfei, when did you become so powerful? Your electronic warfare aircraft can take on six opponents at once?"

As a family member of Chengdu Aircraft Industry Group (CAC), Zhang Yihao was exposed to the world's mainstream fighter jets from a young age.

He immediately recognized that the fighter jets chasing him were J-16-modified electronic warfare aircraft, while the six aircraft being chased in front were all Growler fighter jets.

Because of the electronic pod, which has a completely different shape from the usual missile pods, it is easy to identify.

"There's something even more intense!"

Li Tao excitedly found another news article with someone else's watermark and an English headline: "Look, their American media reported that our J-16D chased the Growler to the Ticonderoga cruiser and even destroyed the Ticonderoga's Aegis radar, drawing the seven Calabash Brothers on their radar screen..."

Today, many netizens shared their complaints, saying that suddenly many American netizens and friends are asking them for Calabash Brothers resources.

"Zhang Yihao, from now on, when you make calls to Zhejiang, you don't need to worry about electronic noise interference anymore..."

"Drawing the Calabash Brothers on the Aegis radar interface?"

Zhang Yihao stared in disbelief, and after a long pause, blurted out, "Awesome!"

"Shenfei is amazing."

Su Yue, now believing the news, exclaimed in amazement, "This is the news report! It's so typical of Americans..."

"Wait, how did these photos and news manage to circulate online this time?"

Huang Qingyao asked doubtfully, "Last year we shot down an F-35 Lightning fighter jet. The photos and news were banned from the entire internet within two hours of being posted... I didn't save the pictures at the time, so I asked my dad to confirm that it happened."

"This may be due to some kind of strategic need."

Xia Ran seemed to have thought of something and chuckled softly, saying, "Yesterday I was watching the news with my mom at home. There was a global new energy industry summit negotiation in Europe."

The reason for this summit is that Uncle Lin and Uncle Xu developed the latest lithium battery technology, which was then handed over to Lin Dong's uncle, Xingdong Company, for operation. The timing of the meeting just happened to coincide with the Roarer's interference line...

As she spoke, Xia Ran's gaze also fell upon Lin Dong, who was standing with Xu Qingling.

"We haven't paid much attention to these global industries and international events; they're too far removed from our lives."

Lin Dong calmly shook his head, then took out his phone to check the time: "Aren't you all going to school yet? You class monitors and class officers will be the first to be late."

"Go to school, go to school!"

Upon hearing this, Su Yue cheered, "The class monitor is never late..."

Sigrún has taught at the Iceland University of the Arts as a part-time lecturer since and was Dean of the Department of Fine Art from -. In – she held a research position at Reykjavík Art Museum focusing on the role of women in Icelandic art. She studied fine art at the Icelandic College of Arts and Crafts and at Pratt Institute, New York, and holds BA and MA degrees in art history and philosophy from the University of Iceland. Sigrún lives and works in Iceland.

Soon, the school day was over.

School ended around 4 PM. At Su Yue's suggestion, Xu Qingling, Huang Qingyao, and a group of other girls went to get milk tea, while Lin Dong went to Lab 78 alone.

"My godfather hasn't gotten off work yet, and there's still no news from Europe..."

Lin Dong went into the lab, checked the time, took a bottle of cola from the refrigerator, and logged into his email to check the emails from the past two days.

"My godfather's emails are all routine, I don't need to handle them... Hmm, is there any new progress on godmother's reusable rocket project?"

Lin Dong opened Wang Xingguo's and his own secure email accounts, and when he saw Su Ruohua's email address in his own, he was momentarily stunned.

The problem with the reusable rocket last time was that there was only a control system, not an engine system.

He replied that the engine solution was required as well. Su Ruohua explained that the confidentiality system in the Northwest was different, and the engine solution required an application and physical delivery, which wouldn't be quick.

Now, is this the engine solution that's been presented?

Lin Dong took a sip of cola and curiously opened Su Ruohua's email.

"Xiao Dong, I've brought the data for the rocket engine design and the latest control scheme, as well as two problem-solving approaches and solutions that I discovered through my own research and calculations. What do you think...?"

Lin Dong glanced at the email description, opened the attached engine solution, carefully examined it for a while, then opened Su Ruohua's own ideas and research. After thinking for a few seconds, he typed a reply.

Currently, there is only one problem: the needle-type injector needs further optimization. The injection pressure and flow control are not precise enough, which leads to problems with the thrust accuracy of the depth-variable thrust technology... Godmother, you have found the right direction, but you lack experience and the optimization design is not yet sufficient.

You can check the military industry intranet for this question. My uncle Xu published a model for precise flow control of the AH2012-987 precooling device last year, and there are many similarities between the two...

"Rocket recovery is equivalent to precisely controlling the engine's power to create intricate designs..." Lin Dong shook his head and sent the email.

The most crucial technology to overcome for reusable rockets is the technology of deep variable thrust, which can be simply understood as the technology of precisely controlling the thrust of the rocket engine. Only in this way can rocket recovery be based.

To control rocket thrust, the flow rates of oxidizer and fuel must be controlled; higher thrust requires higher flow rates, and lower thrust requires lower flow rates.

But rocket engines are different from aircraft engines.

Aircraft engines can rely on intake pressure to mix fuel, while rocket engines rely entirely on injection pressure to mix fuel.

According to fluid mechanics, the injection pressure drop is proportional to the square of the flow rate.

When the injection flow rate drops to 10%, the pressure drop may decrease sharply to 1% of the rated value. This injection pressure will cause the propellant atomization effect to deteriorate, the mixing to be uneven, and the normal combustion to be unable to be maintained.

At this point, in addition to redesigning the entire engine structure and scheme to match the thrust adjustment, a technology called a needle-type injector is also needed.

This injector acts like a movable "needle valve," adjusting the flow area of ​​fuel and oxidizer by changing the position of the needle plug, maintaining the injection pressure drop, and ensuring the mixing of fuel and oxidizer.

However, the process accuracy and flow model of this injector present a challenging problem.

In addition to being perfectly compatible with the rocket engine design, the flow control itself also needs to undergo numerous tests to determine its accuracy.

"However, my godmother is quite talented; she found the problem so quickly. But she's used to the bold and unconventional approach of single-use rocket designs and lacks the experience to be as perceptive as she is with reusable rocket designs..."

Lin Dong sighed inwardly, picked up his cola and took a sip. Just then, the door next to the laboratory opened, and Wang Xingguo hurriedly walked in.

"Why is Godfather in such a hurry to leave?" Lin Dong turned around and looked at Wang Xingguo, who had rushed in, with a puzzled expression.

"There's a meeting at headquarters tomorrow morning to discuss the bombing project, so I need to go there early tonight," Wang Xingguo said hurriedly.

"Oh, going ahead of time... Godfather has come up with a better solution for snatching the project?" A hint of curiosity appeared in Lin Dong's eyes.

His idea was to directly use "open bidding".

Slamming the table and making a solemn pledge to complete the project within three years, promising to give the project to Xi'an Aircraft Industry Group (XAC) if it can be completed earlier... This way, apart from the high risk of getting beaten up, the success rate of winning the project is 100%.

However, Wang Xingguo would obviously not use this method unless absolutely necessary.

"I might come up with an idea, but it might not work."

Wang Xingguo shrugged and said helplessly, "That's why I went to the headquarters in advance to communicate with the leaders and ask them to help me mediate the fight."

"Well!"

Lin Dong was taken aback by Wang Xingguo's early departure for this reason, and encouraged him, "Godfather, keep it up!"

"You'd better not try anymore, I'm scared of you."

Wang Xingguo quickly waved his hand and then said, "I came here to tell you that the direction of the Europa New Energy Industry Summit has been decided."

Although we didn't achieve a complete victory, we still got what we wanted.

The new energy industry can then develop and be promoted smoothly overseas, with tariffs increasing by a maximum of 10% at the same rate. Other lithium battery-related raw materials will be traded according to normal market trade...

"Even with a 10% tariff increase, raw material supplies won't be a bottleneck..."

Upon hearing this, Lin Dong nodded and said, "That's acceptable."

China's domestic lithium battery-related mineral resources are still far behind those abroad, especially the mineral resources related to ternary lithium materials, which have been a bottleneck for many years.

This is also why he chose to focus on lithium iron phosphate instead of ternary lithium.

One issue is the explosive nature of ternary lithium batteries, which is a major obstacle to the development of new energy vehicles and also poses a significant potential safety threat to the public.

Another issue is the various raw materials used in ternary lithium batteries, many of which are precious metals, and many of them are metals that are scarce in domestic mineral resources, making it easy to be held hostage by the supply chain.

"Yes, that's possible."

Wang Xingguo nodded in agreement: "They certainly won't give up on developing their own new energy industry, and they definitely won't allow me to dump my products at low tariffs, as long as the raw materials related to lithium batteries aren't blocked."

We didn't expect the Americans and Europeans to agree so easily. We thought we had a tough battle last night, and there would be another tough battle at the meeting...

While it's true that all development is based on military strength, and they punched the harassers yesterday, it doesn't mean that the US and other countries will necessarily accept that punch.

Until the very end, no one can be certain that it will succeed.

Especially now that the US hasn't revealed its true strength and is still the undisputed world's dominant power, if they really want to cheat, there's really nothing you can do.

Done.

Wang Xingguo checked the time: "I'm getting ready to go to headquarters. I'll stay there tonight and wait for my news tomorrow. I hope you won't have to come to the hospital to see me."

"..."

Lin Dong's lips twitched, and he waved, "Goodbye, Godfather."

"There's one more thing."

Wang Xingguo had only taken two steps when he suddenly remembered something, turned back to look at Lin Dong earnestly, and said, "The leader just called and asked me to tell him... to say thank you for your contributions."