Lin Guangzong, who returned from the Hematite Base, drove an electric off-road vehicle to a location about 33 kilometers away from the western suburbs of Guanghangong City.

A tram and railway is being laid to connect the main urban area with this area.

In front of him, there is a large-scale infrastructure construction. On the side, he is the chief engineer of the project, Huang Ning, a senior researcher of the Academy of Engineering. His main research direction is electromagnetic catapults, and he is also one of Academician Ma's students.

"General Manager Huang, are you still used to it?"

Huang Ning smiled and replied, "It's OK. I've done adaptive training at the Tiangong Space Station before. In fact, the moon is a little better, and it has at least one-sixth of the gravity intensity."

Lin Guangzong, who had been training at the Tiangong Space Station for a period of time before, also knew that there were differences between the moon and the Tiangong Space Station.

He asked another question: "General Engineer Huang, is the project going smoothly?"

"Well! It's quite smooth." Huang Ning paused: "But this is just an experimental model. If it is to be practical in the future, it is estimated that electricity will be a problem."

"That's true." Although Lin Guangzong is in charge of administrative management, he is not a complete novices. At least he has known the basic principles of electromagnetic catapults.

To put it bluntly, the principle of electromagnetic catapults is to use electrical energy to generate Lorentz forces to push the slider to move quickly on the guide rail.

The project Huang Ning is currently in charge of is to build a small electromagnetic catapult here for technical verification.

According to the design plan of the experimental model, the maximum load of this electromagnetic catapult is estimated to be about 60 tons, the guide rail length is 15 kilometers, and the maximum derailment speed is 1.3 kilometers per second.

It seems that this maximum speed is not very good.

But don't forget the moon's environment. One-sixth of the gravitational strength of the blue star, and the nearly non-surface atmosphere, even the speed of 1.3 kilometers per second is enough to escape the constraints of the moon's gravity.

If it is launched on the surface of Blue Star 1.3 kilometers per second, it is only four times the speed of sound, and it is difficult to break through the atmosphere and the gravity of Blue Star.

What's more, electromagnetic catapults have another advantage, that is, the length of the guide rail can be continuously extended.

Now the 15-kilometer electromagnetic guide rail will cause the slider to accelerate too high and still feel the obvious G force. What if the length of 30 kilometers is 30 kilometers? It is even longer.

Moreover, electromagnetic catapults have another advantage, that is, the upper limit of the derailment speed is very high. As long as the electromagnetic strength is strong enough and the guide rail length is long enough, the derailment speed reaches dozens of kilometers per second, which is quite easy.

You should know that the upper limit of electromagnetic guns can reach about 20% of the speed of light, that is, about 60,000 kilometers per second.

Even if human materials and supporting technologies are not yet able to find the theoretical speed of light, 1% speed of light should be possible.

However, Huang Ning was not very good at Gao Muyuan. Due to tidal locking on the front of the moon, the front of the moon is constantly facing the blue star. Therefore, the electromagnetic catapult built on the front of the moon can only be used to go to the near-Earth orbit of the blue star.

Since it can only be used to return to the Blue Star, there is no need to develop an electromagnetic catapult with too fast speed. The estimated upper limit is about 8 to 9 kilometers per second.

Because the speed is too fast, on the one hand, it will make it difficult for the spacecraft to control, and on the other hand, it will lead to a decrease in cost-effectiveness.

Between the moon and the blue star, if the spacecraft is too fast, it needs to be reverse-pushed and braked near the near-Earth orbit, otherwise it will not stop the car and will directly rush into the atmosphere, or pass through the blue star and fly to outer space in other directions.

Since there is such a limitation, there is no need to race, just make the speed just right and reach the near-Earth orbit. Only in this way can the electromagnetic catapult have the highest cost-effectiveness.

Moreover, Huang Ning has another concern, that is, the recoil problem of electromagnetic catapults. On the moon, although there is no high gravity and high concentration atmosphere, there is another problem here.

The moon and the blue planet are essentially a planetary system. The moon is a natural satellite of the blue planet. Don’t think that the moon is irrelevant to the blue planet. In fact, the existence of the moon is crucial to the blue planet.

If the moon is lost, the magnetic field axis of the Blue Star and the planet's inclination angle will undergo earth-shaking changes, and even directly lead to mass extinction.

Moreover, in many cases, the moon also acts as the shield of the Blue Star, resisting many asteroids for the Blue Star.

If the moon's protection is lost, the probability of Blue Star being hit by a large asteroid will increase by more than 10 times.

If you look at the front and back of the moon, the dense craters, you will know how many asteroids the moon has blocked for the blue planet over the past billions of years.

In fact, the Blue Star can now develop, and it is necessary to benefit the structure of the solar system. Jupiter is the first defender of Blue Star, and the moon is the second defender. In addition, the Blue Star itself has its super magnetic field and dense atmosphere.

Even so, Blue Star's ecosystem has not been smooth sailing in the past few billion years, with extinction incidents of all sizes emerging one after another.

For example, an asteroid impact event 65 million years ago.

If Blue Star suddenly loses the moon now, the consequences will be unimaginable.

When the electromagnetic catapult is built on the moon, it is very likely that the moon will accelerate away from the blue star. When the moon is far away from a certain distance, it is very likely that it will leave the blue star and become a wandering planet.

Now a small electromagnetic catapult may not look obvious, but it may be possible in the future.

Huang Ning’s current work is to verify technology on the one hand, and to study the side effects of electromagnetic catapults.

Finally, we can calculate how much reaction force it will have on the moon during electromagnetic catapulting. This reaction force will prompt the moon to stay away from the blue star.

Of course, Greater China will not give up on food because of choking.

Electromagnetic catapults have huge advantages in rocky planets with low gravity and sub-vacuum environments.

There is a sentence to summarize:

Nuclear-powered ion-engine spacecraft is suitable for early stages of universe exploration, that is, to explore planets without industrial foundations.

Traditional chemical powered spacecraft can only be used for unmanned exploration within planetary systems or star systems.

Electromagnetic catapults are the necessary infrastructure for comprehensive space migration within the star system.

The moon can be used, Mars can be used. Although the major gaseous giant planets do not have the conditions to build electromagnetic catapults, they have a large number of natural satellites. Among these natural satellites, there are many relatively stable rocky planets.

The electromagnetic catapult that Huang Ning is preparing to build is the core transportation tool for the moon to return to the Blue Star in the future, and experiments are definitely essential.

Although there is a risk of pushing the moon away, this risk is not unsolvable.

Since building a large electromagnetic catapult on the front of the moon will cause the moon to stay away from the Blue Star, the solution is to build a batch of large electromagnetic catapults on the back of the moon.

As long as the electromagnetic catapult on the front and back produces similar reaction force, the distance between the moon and the blue star will not change suddenly.

Lin Guangzong and Huang Ning talked for a while, and decided on some work. They were about to leave here when suddenly his communicator rang.

After looking at the letter, Lin Guangzong frowned, then turned his head and apologized: "General Manager Huang, I have something urgent to do, I will talk about it next time."

"Okay, you're busy first." Huang Ning nodded in understanding.
Chapter completed!