“Don’t you dare to do it but don’t want others to tell you?”
Everyone laughed and laughed. Without the closed scientific research environment of the past and the pressure of international academic competition, everyone has returned to human nature, gathering in groups and having fun.
Especially in the virtual world, where you are immortal, you should make a lot of friends, otherwise, the days to come will be boring. Nowadays, most of them are scientists, so they are like-minded, and the bands are closer.
"By the way, everyone, stop making trouble. Is there something wrong with Chen Xiao coming here?" A sociologist suddenly spoke up. He observed that Chen Xiao hesitated several times and couldn't help but interrupt everyone.
The scientists slapped their foreheads and fell silent one after another. They were so busy sharing their lives happily that they forgot that Chen Xiao was a busy man.
This group of people is also pure, and in the past they didn't know much about the ways of the world. They are the type of people who are the leader who picks up food and turns the tables.
Chen Xiao was a little embarrassed: "There is indeed something I want to mobilize everyone. Participants can obtain the corresponding virtual world currency, which can be used to consume various projects in the future, so that they will not be in vain."
"What did you think it was? What kind of reward was it? We are all bored to death!"
"Yes, we quarrel all day long and no one can win. Give us a project and let's see who has the brightest idea!"
"What's the matter? Tell me!"
Seeing how enthusiastic they were, Chen Xiao seemed to be really depressed. People would be fine if they didn't work for a while, and they would feel worthless if they didn't work for a long time.
After gathering experts from many disciplines, Chen Xiao held a small meeting for ten minutes. All the experts from Yunxia District came together, and even the master of gynecology came to join in the fun. They were really drunk.
Chen Xiao wants to use room-temperature superconducting materials to improve Xia's railway system and contribute to travel and transportation.
The transportation in Xia Guo is three-level. One is the urban transportation network such as subways and buses. This is a relatively short-distance trip. Specifically, it covers dozens or hundreds of kilometers.
One is high-speed rail, a railway system that covers hundreds of thousands of kilometers, and the last one is airplanes.
Although it is very convenient, it still has a lot of problems.
The transportation capacity of subway buses is very large, but the capacity of a single trip is very limited. They are packed like a sardine can every time. The buses are very limited by the conditions of urban roads and are prone to traffic jams.
Roads in cities are not planned casually. Once planned, it is difficult to change. The roads are only that wide. If you want to widen them, it will involve a lot of demolition problems.
Now you understand why cities always like to open new districts. Relocation costs are low.
Unfortunately, the biggest problem with subways and buses is that they require multiple trains to meet everyone's needs, because people have to get off at every station and stop for a while, making commuting time very long.
Some people live in Tianjin and go to work in the capital, commuting four hours a day. How can they be happy? It’s not that people like this, but the rent in big cities is too expensive.
Moreover, not every city can build a subway station. There are strict requirements on population, average income, and urban asset-liability ratio. Even if these conditions are met, there are also geological conditions. There are many karst landforms, Yadan landforms, and underground water networks.
The place is too fragile and cannot be touched even if you want to.
High-speed rail stations and airports are not everywhere, and these two long-distance travel methods do not save much time. You have to arrive at the station in advance and wait for ticket check-in and so on.
This is not the biggest problem. The most serious problem of the three-level drive system is losses!
For example, there are buses in sparsely populated areas. There are basically no people taking them, so you have to pay the fare. Even short-distance buses from the city to the surrounding counties, and from the counties to the towns, there are very few people. It will be better on market days, and the rest
I rely on delivering goods all the time to increase my income, and if the government provides some subsidies, otherwise the driver will not be able to survive at all.
The subway seems to be crowded, but in fact it is still a loss. People think that the subway is crowded, that is, during commuting time, and there are seats available at other times.
During holidays or winter and summer vacations, there are many people traveling and the income will be high. However, the maintenance and operation of the subway itself are also huge expenses. All the equipment needs to be worn and repaired.
The situation of high-speed rail and airplanes is similar to the above. Someone once made statistics, and the airplane occupancy rate is only 70%, which is considered to be flat, but the airplane will leave when it arrives.
This phenomenon is normal. With so many people in the Xia Kingdom, there is a lot of travel demand. The country tries its best to accommodate everyone's needs, so it can only set it up like this. Even if it is a loss, it still needs to provide strong support.
Otherwise, how should some elderly people in villages and towns get to the county town? Should they walk? Trains in some underdeveloped areas still pass by, and even if the area is sparsely populated, the way out for those people must be considered.
Some people cannot afford to go to big cities for development, so they can only stay in the countryside to find food expenses. Those agricultural products are brought to nearby towns for sale on these cheap green trains.
This is called public responsibility, and you have to do it even if you lose money! What will be the consequences of complete marketization? Naturally, capital will abandon backward areas, and the people there will be overwhelmed by the sky and the land. The development of the entire country will be completely unbalanced.
It can be said that just look at developed countries such as the United States.
Xia Guo did not do this and was already very conscientious.
But Chen Xiao wants to change this situation so that it can cover all people while still generating profits and a healthy cycle. He didn't have this confidence before because he didn't have enough technology at hand. Now he has room-temperature superconducting materials that can
Tried to solve it.
What Chen Xiao wants to do is to control the maglev train.
That is to say, the maglev train travels in a vacuum tube, and the driving force and braking force rely on electromagnetic force. The magnetic levitation guide rail made of normal temperature superconducting materials can maximize the use of electricity without loss, and the driving force and braking force will reach
maximum.
At the same time, the train shell or train base made of normal-temperature superconducting materials can produce a superconducting effect with the magnetic levitation guide rail, completely suspended in the air.
Then add vacuum tubes and the speed is unimaginable.
The current technology is about 500 to 600 kilometers per hour, and it is still in the laboratory model stage. Once it is developed using room temperature superconducting materials, it will start at 1,000 kilometers per hour, and may even reach a maximum of 2,000 kilometers per hour. Compared with
The plane is pretty fast. But the details depend on the power supply method and the degree of vacuum.
"No problem! I am an academician of the Academy of Engineering, and I will design the construction plan to control the train!"
"I'll design the appearance of the train!"
"It's all in a vacuum, so what's the use of the shape? The cube has the highest utilization rate. Just design it as a rectangular cube. I can do that!"
"At least it looks good, doesn't it?"
"Don't worry about all these things, you also have to consider the manufacturing of the car body, the involvement of the magnetic levitation guide rails, and the size, so that the smallest amount of electricity can produce the largest power."
What Chen Xiaogang wanted to say couldn't be interrupted at all. The people here were all great people. When they discussed issues, even the Nobel laureate was not able to do it. Everyone had to pout.
"We are divided into groups now, and it is too chaotic. There is a group for construction, a group for appearance design, a group for materials, and a group for transmission."
"OK!"
Then everyone got together to discuss the problem, and Chen Xiao left the virtual world with a smile. With this group of experts, it really made things easier for him, and he could just find someone to handle the rest.
The more talented people there are, the easier it will be to get things done. Within three days, the general framework was formed.
The guide rails and trains can be manufactured according to the existing Xia Guo standards, and there is no need to redesign them to avoid opening a new production line. Chen Xiao is a person who values efficiency and substance, and will not go out of his way to show off his excellence.
Standard. (Apple said: Are you reading my ID card?)
Just apply the normal temperature superconducting material evenly on the guide rail and the bottom of the train.
The propulsion method has also been decided, which is to use the whole vehicle propulsion method.
In other words, the normal-temperature superconducting material tubes at the bottom of the train and the guide rails only levitate the vehicle. Propulsion relies on the interaction of the entire vehicle body with the magnetic field in the tube space.
If only the bottom exerts force and brakes, those room-temperature superconducting materials will inevitably fall off or deform due to the huge force.
Just imagine, a very heavy train, carrying many, many people, speeding at a speed of more than a thousand kilometers per hour. How much thrust is needed to increase the speed, and how much resistance is needed to slow down?
Besides, there are also stations in the middle that need to be stopped and started and stopped frequently. Is the impact resistance of room-temperature superconducting materials really that good? In this case, let the whole vehicle bear such pressure.
In this way, the design of the rectangular body is particularly reasonable. The stacking thickness at the front and rear of the car is enough to withstand the huge force. The designers disagree, saying it is too ugly. Moreover, the stacking thickness can also be modeled on the armor of a tank.
With a reverse bevel, the effective thickness is increased, and it doesn't need to be as thick as it seems.
"Do you know a hammer and the kinetic energy theorem? How much kinetic energy does a thousand-ton train have at a speed of thousands of kilometers per hour? Can a reverse incline withstand it?"
"Your tone is like that of my middle school teacher. You know what the heck! It's because the momentum is so high that it has to be designed as a reverse slope to have a buffer."
"Shut up! What kind of impact should we consider in a vacuum environment? Use reverse fire to stop the car, learn how to use rockets, and consider the overall strength of the car body!"
"Haha! Passengers must have the physical fitness of an astronaut to ride, right? Otherwise, who can withstand such a huge change in speed? Are you able to do it? Don't worry about it!"
It took three days to build the general framework, but we also found too many problems. The biggest problems lie in two points. One is the material problem of the tube bundle channel. It needs to be hard enough and soft enough to withstand vacuum and atmospheric pressure.
The height difference can bear the weight of the car body and the guide rails. Don’t think that just building a circular tube on the ground is enough. You will have to design an aerial road in the future!
The second problem is the problem of starting and braking. If the car is started too fast, the passengers will feel a damn push on the back, then have chest tightness, or even the lungs will explode.
The limit of the human body is 8G or 10G, which is 8 to 10 atmospheric pressures. This is already the number of astronauts, and ordinary people will faint after only three or four.
If you brake at super high speed, everyone will be cut into two pieces by the seat belt!
This seems to be even more unsolvable. If it cannot do this, the vacuum tube beam train can only transmit point-to-point forever, slowly accelerating and then slowly decelerating, just like an airplane. This seems good, not far away.
It's very uncomfortable for people who are close by. You have to stop before you can even speed up. You might as well take the high-speed train.
Chen Xiao looked at it for a while and could only let them solve the first problem first. The second problem is actually a problem that the aerospace field has to face. If this problem is not solved, space travel in the future will be empty talk.
"We still have to develop an energy stance to resist inertia. Human beings are too fragile." Chen Xiao is very pragmatic and does what he can first.
However, there are huge differences in the selection of materials for the infusion channel.
Normally, the easiest thing is to seal and weld the steel. Xia Guo has a large steel output and good welding technology. The quality of the steel is good and the thickness of the stack is sufficient. But the biggest problem with this plan is the cost. How much does it cost to have so much steel?
The shop is so long! If we later build a management channel in the city, how can such a heavy thing be built in mid-air?
Chen Xiao has great expectations for controlling trains. He hopes to completely replace the current mode of transportation, replace airplanes, and even realize transportation between continents. It can go to the European Union or Africa. Don't go through Malacca. Every time
You have to pay, annoying!
If steel is not good, then we have to review the glass material, but such a glass material cannot be produced. The glass itself is too brittle and has no ductility at all. Once a problem occurs, "bang"! Even the reaction speed will be slowed down.
No. Plexiglas is malleable, but it's a bit unreliable when exposed to wind, sun or rain.
"We still have to develop new materials! Do you have any suggestions?" Chen Xiao took the time to have a meeting with the experts in the materials team and the materials department of Changtian Technology.
Everyone talked about a lot of materials, but when they looked at the performance and cost, the dogs shook their heads.
A voice came out silently: "Diatom seems to be okay."
"Huh?" Chen Xiao's eyes lit up instantly. He seemed to have caught something and quickly looked at the speaker.
At that time, the material expert in the virtual world was named Brahms. The name was exactly the same as that musician, and their nationalities were even German. Chen Xiao didn’t pay much attention to it. The name was probably similar to Zhang Wei from Xia State.
, Liu Bo is a concept.
"Please tell me."
"Okay, everyone knows the characteristics of diatoms. It is an anisoflagellate organism, that is to say, it is neither a plant nor an animal. In my opinion, it is a monster!
Its cell wall is made of silica instead of cellulose. Its reproduction method is also outrageous. At first, it divides, with one side larger and the other smaller, and each grows a shell. The smaller part divides and becomes smaller, and then the shell cannot accommodate other bodies.
When forming, the small individuals will convert to sexual reproduction and combine into a large individual. The previous process will be repeated.
Why don't we use their split shells as infusion channels? As long as they are piled up enough, they will be strong enough, and this is so light and easy to obtain."