Technological power starts with upgrading lenses.

Chapter 443: Did you know that this is dog-licking behavior?

Seeing the message forwarded by Fang Qiming, Zhang Qing's expression froze for a moment, but she couldn't help but click on the link and watch the video.

Until the video was over, she still stood there, staring blankly at the last frame of the video, wondering what she was thinking.

A monk happened to pass by and seemed to understand something after seeing her reaction. He just sighed softly and bowed with one hand towards her back.

They have seen too many tourists who are trapped in love.

"Sister, why are you in a daze?"

At this moment, a silver bell-like voice rang out. Zhang Qing looked up and saw her cousin blinking at her curiously, so she quickly locked the screen of her phone.

"nothing."

"Is it about work again?" Lin Xue pretended to be dissatisfied and said, "When you asked me to accompany you, didn't we clearly agree not to talk about work and just have fun? Don't be such a bummer!"

"Um……"

"That's right!" Lin Xue pulled Zhang Qing's hand and said excitedly, "You will never guess what I just did!"

"what?"

"There is a suspended toilet on the top of the temple. Netizens call it the toilet in the sky. You can't imagine how exciting it is to use the suspended toilet in the temple with the highest altitude! Come on, I'll take you to try it!"

Zhang Qing: “…”

Although Lin Xue invited her in every possible way, Zhang Qing decisively rejected this risqué and shameful proposal.

The two walked to the observation deck opposite to admire the temple built on the cliff for a while, and then came to the apron to wait for the flight.

It must be said that this trip to Xizang allowed Zhang Qing to more directly feel the changes that Kang Chi and Longteng Group have made to China over the years.

For example, although Zizhu Temple is only 37 kilometers away from the county seat, if tourists wanted to visit here in the past, they had to drive carefully for two hours along the steep cliff road.

However, as the Song Dynasty Air Transport Corporation has planned a special tourist line here, it only takes tourists less than ten minutes to fly to this magnificent temple for a visit by taking a Yunhe.

The convenience of transportation is just the tip of the iceberg of all the changes.
To be honest, Xizang has never been poor, and can even be said to be wealthy.

The Tibetans often have hundreds of yaks worth tens of thousands of dollars, so the fact that each Tibetan is a millionaire is no joke.

But the problem is that having money here doesn't bring any practical convenience to life.

Due to its remote geographical location, even the most common vegetables here are several times more expensive than those in the outside world, not to mention the medical, educational, and entertainment resources.

The money is worthless and cannot be spent. The original living conditions are difficult. What does it matter even if the per capita income is 10 million?
But since the Song Dynasty began to vigorously develop air transport in Xizang, Xijiang and other places, their various materials have finally been able to circulate rapidly, and the long-standing high prices have begun to drop significantly.
At the same time, the outside world can also buy truly green and healthy mountain specialties at a cheaper price. As more and more companies set their sights here, the local economy has been further revitalized and a large amount of natural resources have begun to be utilized.

After Zhang Qing returned to DQ County, the sky had begun to darken. The lights throughout the county began to gradually light up, making it look more vibrant and prosperous.

"In fact, he should come here to see the results of his hard work..."

"Who?"

"A fool." "Yeah?"

"I suddenly felt that someone like him shouldn't be tied down by love affairs. I was too selfish and wishful thinking..."

“No way?!” Lin Xue seemed to have discovered something incredible, and hurriedly screamed, “Sister Qing, you are actually in heat, and it’s unrequited love!? Tell me which blind man it is!”

"Freeze said!"

"Fuck, you're still defending him? You know that's dog-licking behavior?"

"you go!"

……

After briefly inspecting the parts manufacturing base of Daming Deep Space in Luzhou, Kang Chi quickly returned to Dongyang. Three days ago, Director Ge had sent someone to hand over the drawings of the Blizzard to him. Academician Fu's team is now conducting a comprehensive study and reference of the drawings. In addition to learning from each other's strengths and weaknesses, the key is to keep pace with the times.

Academician Fu was quite good at technical reverse engineering, not to mention that he had a complete set of drawings ready for him. The only thing he needed to be careful about was the "blades" that might exist inside. Therefore, Kang Chi did not participate too much in their design work and mainly focused on Yan Hui.

After Kang Chi had taken the engine out and figured it out, the rocket itself was not difficult to make. Even if the equipment was customized and purchased with existing technology, a rocket that could be launched normally could be made.

But Kangchi was obviously not satisfied with this, so mastering and upgrading liquid hydrogen storage technology became the next challenge.

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Liquid oxygen and liquid hydrogen rockets have many advantages such as no pollution, renewable, and high specific impulse. They are currently recognized as the fuel with the highest energy density except for nuclear fuel. The energy density of up to 120-142MJ/kg is 2.5 times that of methane and 3 times that of oil and natural gas.
But it also has a big disadvantage, that is, the energy density here refers to the mass energy density, that is, per kilogram, hydrogen has the most energy, but if it is converted to volume energy density, hydrogen will be instantly killed by most fuels.

The low volumetric energy density means that a larger fuel tank is needed, and hydrogen is also volatile and needs to be kept at -253 degrees Celsius to remain liquid.

Extreme storage conditions have become the biggest bottleneck in the development of liquid hydrogen energy. This affects more than just ordinary storage and transportation, and also places extremely high demands on the design of the rocket itself.

After all, the issues that need to be considered on the ground also need to be considered on the rocket.

Therefore, liquid oxygen and liquid hydrogen rockets usually require larger fuel tanks, more insulation materials and equipment, which greatly reduces the strength and lightness of the rocket and reduces the rocket's payload.

This can be seen by looking at the huge orange fuel tanks carried by the old M space shuttle.

"President Zhuo has already reached a formal cooperation agreement with Dongfang Electric." Yan Hui handed the cooperation agreement to Kang Chi while reporting the progress. "They will provide us with the most advanced hydrogen and oxygen production equipment, but the subsequent transportation, storage and refueling still need to be solved by ourselves..."

"Storage and transportation are actually the same." Kang Chi interrupted Yan Hui and asked, "How is the negotiation progress with Shengyuan Environmental Protection?"

"It's a bit troublesome." Yan Hui said with difficulty, "Because we want their technology rather than equipment, so they are quite resistant to it. They are not as sensible as Blue Arrow Aerospace."

"Plus, they are a listed company, so the process of transferring their core technology is quite complicated. Mr. Zhuo suggested that we acquire them directly, but the problem is that they are a listed company, so it will definitely take a long time to complete the acquisition..."

"Forget it then." Kang Chi waved his hand.

"I will do it from scratch, and my progress will be synchronized with yours in real time. You will be fully responsible for building the main body of the booster. The first engine will be delivered to you in about a week, and the rest will be in place within a month. We will strive to conduct booster launch and recovery tests within three months."

"Three months!??"

Yan Hui's eyes suddenly widened.

(End of this chapter)