Chapter 1026 The plane crashed

Seeing this, the chief said to the head of the foreign affairs department: "Well, next, you can start your work properly. Remember, never give in on matters of principle. There is no need to haggle over economic and technical matters. Let everyone see the benefits and achieve mutual benefit and win-win results. If you take everything for yourself, you will easily lose friends."

Other leaders also nodded in agreement, saying that the focus of foreign affairs work is not the economy.

At the same time, being able to establish normal diplomatic relations with the Gauls is also a kind of reconciliation for us who have just fought a war and whose deterrence seems even stronger. The significance of this work is still very significant.

"Okay, we will start the relevant work right away." With this instruction, it will be much easier to carry out the work.
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Major events between countries are undercurrents, proceeding silently but at a tight pace, and people's work at hand is also not neglected.

Gao Zhendong is preparing core equipment for the network.

There are two pieces in total, one is the core router, and the other is the most important device in the local area network - the aggregation device.

There was no technical environment before, but now that integrated circuits and other things have come up, we have the basic technical environment and can get what we want in system stores.

Why do it yourself when you can copy it?
However, Gao Zhendong did not plan to directly use the switch as the aggregation device. He planned to integrate the actual switching function of the switch into the router, mainly because it was too expensive.

Even switches that can meet basic switching needs to use a CPU. However, with the current CPU performance, they are either very advanced and expensive, and are also urgently needed for other tasks. They are at the C6108 level or above, or even top-level products such as C6132, which are in short supply. In addition, the requirements for memory are not low. Combined with the two, the price of this thing cannot be low.

Otherwise, the switch produced will have no functional or performance advantages.

Since it is so expensive, it is better to add routing function and make it into a router.

What he is targeting now is the HUB!
A hub is an obsolete device that will no longer be used unless there is a special requirement when Gao Zhendong travels through it. The biggest difference between a hub and a switch is that the switch works by switching and has basic addressing capabilities.

But the hub is different, it works by broadcasting!
That is to say, any port on the hub can hear what other ports are saying. There was a period of time when a very popular hacker software - network sniffer, which was very useful on the local area network with the hub as the aggregation device. As long as the network card worked in promiscuous mode, and many web page passwords and messages at that time were transmitted in plain text, it was really cool.

The downside of this thing is that it has poor performance, poor security, slow speed, and zero management function.

As for the advantages, just two words: simple and cheap!
To be honest, this thing actually caused Gao Zhendong some trouble. It was not for any other reason, but just like he had finally found a video playback device with the concept of a video recorder in the system, but this thing could not be found in the store at all because of outdated technology!
There is a switch, but it is a switch that meets the current technical capabilities. It can be used, but it is expensive! It is not popular. It can be used as a high-end supplement, but if Gao Zhendong wants to popularize it, he still wants a hub.

Just when he was about to give up and call upon his comrades from the 12th Ministry of Machine Building to do it himself, a turning point came.

I don’t know who in the stores around the supermarket where he worked back then might have found this thing and put it on the shelves, and he found it in the system store.

You know, this stuff can't be sold in other places, but around Gao Zhendong's school, it can be sold, and the price is not low. The main reason is that there are too many students studying computer science in their school, and which middle school student studying computer science doesn't have a hacker dream?

As long as you write something like "HUB!! Specially used for research on network sniffing technology, limited quantity, first come first served", those middle school students will scramble to buy it.

Looking at the taken out hub, Gao Zhendong always felt something was wrong.

Damn, wires and connectors! Looking at the rather bulky aviation plug, Gao Zhendong didn't know whether to laugh or cry.

How can this work?

RJ-45 is not used for the time being. The manufacturing cost of its connectors and wires is a bit high at this stage, but this does not pose a problem for Gao Zhendong.

Relying on his memory, he quickly drew a set of drawings, and then called the comrades in the Mechanical Section of the Technical Department of the Third Factory.

"Master Gao, is there a mission?" Now they were really nervous. The comrades from the 463th and 4th Machine Ministries were happily calling him "Teacher" in their department. There was nothing they could do about it, because the Type L engine was born in their hands.

"Well, there is a small task. You need to process this thing quickly."

The head of the mechanical department took a look at the blueprint and said cheerfully, "Okay, right away. How many sets do you want?"

"Give me one set first, and send it to me as soon as it's done. Don't worry about mass production, just rubbing it by hand will do, as long as it achieves the effect shown in the picture! Then make a hundred sets for backup."

Gao Zhendong just wanted to prove and remind the system that this thing can be done, and the current connection method I chose is this. You should quickly modify the hub for me to make it technically compliant according to this interface!
And this thing has an advantage, that is, when the network scale is very small, you don’t even need a hub, and the networking work can be completed directly by relying on network cards, cables, and three-way links.

Watching his comrades leaving, Gao Zhendong started to fiddle with other things. Now that he had a hub, should he also arrange for a network card?

But this thing is simple. Although ordinary students will not use wired network cards, some people still buy 2.5G network cards. They can be found in system stores because the motherboard may not be integrated with such a high-speed network card. It was not extracted before because the technical environment was not enough, but now there is no problem. Not only Gao Zhendong is busy, but comrades from all over the country and in various systems are also busy.

In the southwest, Shu Province, a dusty comrade walked into the Shu Provincial Department of Mining and Metallurgy.

He comes from the neighboring province, Gansu Province, the other half of the idiom "get Long and look forward to Shu", and is a chemical engineering teacher at Jincheng University, the capital of Gansu Province.

"Teacher Gan, you are finally here. We have been waiting for you for a long time." The comrades from the Sichuan Provincial Department of Mining and Metallurgy were very excited to see him. Coincidentally, this teacher's surname was Gan.

"I'm very sorry. It's mainly because the work handover took up a lot of my time, and I also have to arrange the students' classes." Teacher Gan felt a little apologetic. It did take a lot of time.

But it can be seen that the comrades in Shu Province still attach great importance to this matter. They have waited for me for so long and have no complaints.

"It's okay, it's okay. Work is important. It's good that you're here. Do you understand the situation?"

"Well, I have some understanding. The main role of chelating resin is played by the amidoxime functional group. I have some understanding and research on this aspect, although not very in-depth." Teacher Gan is very modest, but in fact, he is the comrade who has the deepest understanding of this aspect that the Sichuan Provincial Department of Mining and Metallurgy can find nearby.

Although we are still helpless in terms of industrial production, high-level applications and in-depth characterization, at least we know what the amidoxime group is.

What many people don’t realize is that Jincheng University in Gansu and Longnan is extremely good in chemical engineering. Although it is located in the northwest and seems very remote, it is really excellent in this area.

This is also the reason why comrades from the Sichuan Provincial Department of Mining and Metallurgy are waiting for the arrival of Teacher Gan even though they are collaborating across provinces.

"That's great. We are in need of such people. In this case, please go to Beijing with our colleagues from the Mining and Metallurgy Department. There is a project on chelating resins that is directly related to the amidoxime group."

Teacher Gan was confused. He had just arrived in Shu Province, and then he was sent to the capital?

But after he came to his senses, excitement quickly took over his mind.

Can a project that requires going to Beijing be small? It's not easy to go on a business trip these days. If it's not a big move, no one is willing to go so far.

"Okay, okay! Thank you to the leaders of Shu Province for giving me this opportunity to participate in this work." Teacher Gan agreed readily and was very excited.

He could understand what chelating resin was used for. It turned out to be a cutting-edge topic in the chemical industry and a very useful method of targeted extraction.

Being able to participate in such a project, which is obviously technically led by him, is something that is very worthy of celebration for Professor Gan's academic career.

At the same time, over in the desert, the comrades finally got the newly synthesized GAP and developed the GAP propellant.

"ignition!"

On the solid rocket engine test bench in the distance, a silver-looking metal cylinder was fixed on it.

Following this command, a "boom" sounded, and fire continued to spew out from the tail of the metal cylinder.

The comrades were rejoicing as they saw the thrust values ​​of the test bench rising sharply. Suddenly, with a loud bang, the metal cylinder exploded!

Through the telescope, the comrades could see that the metal cylinder was first burned through and then exploded. Fortunately, in this case, it was mainly combustion, and the explosion did not seem to be very powerful.

The comrades looked at each other in bewilderment.

Good news: This stuff is powerful!
Bad news: It’s too strong!
Despite this, the comrades' eyes were filled with extreme surprise. Power was not a problem. The only thing they could do was to find a way to solve the shell material of the rocket engine. In the past, they were most helpless because the solid rocket engine was not powerful! They could only work on the liquid.

"You can first use 591 high-temperature alloy to process another shell, and make it thicker! We have to complete the test first." Although the test failed, the comrades in charge of the rocket engine were very happy. It was great!
The shell used for testing is not for official arrow mounting. As long as it can withstand the test, the negative impact of the weight of the 591 and the thickened shell are no longer the main problem.

But when it comes to officially mounting the arrow, the thickened 591 is still a bit heavy, so I have to think of a solution.

(End of this chapter)