Chapter 3331 (1/2)

”With regard to the fourth technology, it is not a space technology in itself, but a technology for launching massive objects.” I explained: ”as we all know, launching a spacecraft is a very energy consuming activity. For example, it is quite difficult for us to launch only a few tons of satellites. In the space age, the self weight of many large space warships may exceed 10000 tons. Although the power of this class of spacecraft will be very strong, but if it depends on its own power to leave the surface of the planet is really very energy consuming. Therefore, some planets will be equipped with special devices to help large tonnage spacecraft take off. ”

”What kind of device is it?” Someone asked.

”In fact, it's not a special device. It should be similar to an electromagnet. The difference is that it's directional and uses gravitational waves instead of magnetic fields.”

”Gravitational waves?”

”Yes. Simply put, a giant gravitational wave generator is set up on the earth's surface, and then the spacecraft that needs to go into space can enter the upper area of the device. When the device is started, it will generate an upward gravitational wave, supplemented by a special repulsion field, which can send the spacecraft directly into space without starting its own engine.

This technology is widely used on the creator's planet, and its launch cost per unit mass is higher than that of space elevator, but its own construction cost is very low, the construction difficulty is also very small, and the maintenance is simple. The most important point is that the rail elevator can transport scattered goods or small spacecraft that can be loaded into containers, but for some large spacecraft, the rail elevator is obviously not suitable. This kind of device is just complementary to the rail elevator. It is a kind of launch device with high safety and low construction cost. The creators' military launch systems are basically based on this, and rail elevators are more like civilian technology.

As far as our current situation is concerned, we don't have enough technology to complete the rail elevator, and even if we have that technology, we don't have the time. But this launcher is very simple, and according to my estimation, we can do at least a few thousand of them around the world without affecting other construction projects. ”

”So what's the use of this launcher?” Asked a tycoon.

”It's a lot of use. For example, the spacecraft can go directly into space without consuming any fuel, which means that our spacecraft can save some more fuel. In addition, because of this technology, all immigration ships we will build from now on can be modified to reduce the fuel tank size and make room for more sleeping cabins. In this way, more people can be taken away without additional workload. Don't you think that's a good thing? Even if the space saved does not need to be filled with people, it is a good choice to take more resources and equipment. Don't you want to take away all the antiques, famous calligraphy and paintings on earth? ”

When I heard the last part of my speech, the big guys obviously reacted differently.

No matter what degree of social development, there is no real equality between people. Although due to the great crisis of human extinction, all countries have made great efforts to reserve space for manned use. But even that doesn't mean the tycoons will leave empty handed. Many of them have actually planned to leave with jewelry, antiques, calligraphy and paintings, and they really have the ability to take some of these valuables. But even if these tycoons have the ability to carry these things, they still can't take away all their collections, because even they have to compromise in the face of the great crisis of human extinction, so each of them may take less than one third or even one fifth of their collections.

These big guys don't think about this kind of thing? Of course not. So, when they heard that a lot of space could be made available, these people immediately got excited.

What they don't know is that the space saved on these ships is actually much larger than they thought.

Although these immigrant ships under construction all over the world generally use the super electromagnetic engine and the thrusters left by aliens, they still need to use human rocket assisted technology to launch when taking off. And the rocket boost technology has many holes, perhaps some people know. We can see how big the Rockets were when we launched the satellites, but how big were those rockets? A rocket is dozens of stories high, and the satellite only accounts for one percent of its volume. The rest of the space is basically a fuel tank.

If the immigrant ship can enter space without its own power, that is to say, we can not only reduce the volume of the fuel tank, but also can directly omit this part without installing rocket booster equipment.

If it did, it would mean that today's immigrant ships would be able to maintain their original performance without losing a third of their volume. What's the concept of one third of a ship's volume? It's not just volume, it's weight. This means that the construction cost and construction period of the new immigrant ship will be shortened by a large section, but the performance will be improved slightly. If the volume is not reduced, then the extra one-third of the internal space can be filled with two sets of auxiliary thrusters, more people, or more spare parts.I don't intend to introduce these details to them here. Anyway, they will certainly ask themselves in the future. Of course, this kind of modification can only be applied to the ships that have not yet been completed. If the immigration ships that have been completed are reworked, the time will be delayed. It is better to build more new ships.

In fact, I personally think that it is not bad to retain some immigration ships with large thrusters. In fact, the output power of the super electromagnetic engine we are using is very small. It is OK to accelerate for a long time in space and maintain stable endurance. However, the explosive force is not enough. In case of emergency, it is difficult to correct the trajectory of the ship. The power output of those engines removed from the remains of aliens is very good. Unfortunately, these things are not enough. What's more, we installed the thrusters used by small spaceships into large spaceships, which is a little bit of a horse pulling a cart. Even if the thrust of other people is very large, it is still relatively small compared with the original size, which is not enough for large spaceships.

Although human rocket propulsion has many shortcomings, but at least one thing is very good, that is, the explosive power is very high. Now that you can't use rockets to launch a spaceship, you can save the fuel for emergency use.