After eating and thirsty, Anna removed the food from the table and began to serve them dessert and drinks.

"I feel like I'm finally alive!" Lin Wanbai stroked her belly with satisfaction.

After a person is full, the brain will secrete a hormone, which makes people feel very good, so Lin Wanbai has this performance.

"Li Yu, has your research come to an end?" Zhao Qian did a good job of inspecting the action, since Li Yu and they came out, Zhao Qian decided to return this work to Li Yu and them, and then concentrate on studying.

Originally, according to the original plan, Zhao Qian should study for two years and intern for one year. It's just that due to the sudden events in the life of this dimension, she started a certain degree of internship in advance.

Whether such a change is good or bad, we can only look at Zhao Qian's future development and then make comments, anyway, she is doing very well now.

"That's right, our research has come to an end. Next, we need to make some changes to the spacecraft in the laboratory. ”

Li Yu made a rough arrangement for the next arrangement of the laboratory.

In Zhao Qian's eyes, the already mysterious and powerful laboratory spaceship is now going to be transformed, that is, the technology has been upgraded, so how powerful will the transformed spacecraft be?

Anyway, as soon as the laboratory has any technological breakthrough now, the place for its experiments must be its own spaceship. Therefore, the five current spaceships in the laboratory are not uniform in style at all.

"The first thing we need to change is the ship's engine system!"

As no one else expected, Li Yu was the first to do something about the ship's engine system, but he didn't know how much power he had to change.

"Li Yu, to what extent does our engine need to be replaced?"

"All for all!"

All in exchange? Fang Qianmo and the others were a little puzzled, this year's research, although they did not grasp the overall situation, but for the research projects in the laboratory, they all knew very clearly, to say that it was not easy to replace all the engines on the spaceship.

There are three main engines on the spacecraft in the laboratory, one is a conventional engine, which can fly in normal three dimensions at a maximum speed of sub-light

The second engine is the faster-than-light engine, which allows the laboratory's spacecraft to travel at speeds up to 50,000 times the speed of light. This is the level that Li Yu has been achieving with a slight upgrade of this engine.

The third engine is the space jump engine, which is the most important engine on the laboratory spacecraft, and its improvement work is also the focus of Li Yu's attention. It is now possible to reach the normal limit of three million light-years and a jump distance of five million light-years.

Other engines, such as the high-dimensional space engine, are not the main engines of the laboratory, and are basically used temporarily, but they also have their functions and cannot be canceled.

Among them, the space jump engine, although the foundation uses the principle of wormholes, since the laboratory has space-time technology, it is not just wormhole technology.

Isn't it normal for space-time technology to be used on space-jumping engines?

The main reason why Li Yu applied space-time technology to the engine is because wormholes have their inherent limitations.

Let's not talk about the wormholes that are naturally generated in the universe. If you want to open the wormhole artificially, the wormhole before the galaxy can't see anything, and the energy consumption of the wormhole across the river system can make the galaxy-level civilization so high that it doubts life.

And the energy consumption of the wormhole technology used by the celestial region-level civilization will also make the cross-river civilizations doubt their lives.

So apart from wormhole technology, is there no other technology that can be used to make space jump voyages? Yes! Of course! The universe is full of wonders, for example, the space teleportation that Li Yu has been studying is a much more advanced technology than wormhole technology, and this kind of technology cannot be played even by ordinary celestial-level civilizations.

There are also technologies such as subspace navigation technology, and one of the commonalities of these technologies is that they require great energy.

That is, the laboratory, the other civilizations, which are not all carefully developing their navigation technology? They had to compromise between technology and energy requirements, which in turn limited the engine's performance.

Unlike a laboratory, Li Yu never considers this aspect of the problem, and the problem of limiting the development of laboratory technology is never a matter of energy.

Horse-drawn carts, this is the norm in the laboratory, and Li Yu always has to think about how to further improve the performance of the engine, rather than reducing the performance of the engine for the energy demand of the engine.

The main energy system used in the laboratory is already a space-time reactor, and this energy source involving space-time technology will make people of other civilizations envious to death.

At the very least, Zhao Qian's expression collapsed after learning that the main energy source of the laboratory was the space-time reactor, because in comparison, the country is still making unremitting efforts to increase the power of the fusion reactor, and this kind of effort seems incomparably small in front of the laboratory.

Because fusion reactors are a technology that has long been phased out in laboratories.

The country's secret energy source for the future is the material reactor, which as far as Zhao Qian knows, already has a certain eyebrow. But this technology can't even compare to the dark energy reactor technology, which has been eliminated in the laboratory!

In fact, for Li Yu, there is no problem at all with the dark energy reactor to drive the laboratory equipment after this upgrade, at most let Li Yu carry out a major upgrade of the dark energy reactor.

It's just that after having a better space-time energy reactor, who would use a lower-level dark energy reactor!

Zhao Qian's biggest goal in her heart is to learn dark energy reactor technology before leaving the laboratory, but from the perspective of the goal, it is impossible, she can independently develop the material reactor technology that the state is secretly researching.

When she heard what Li Yu just said about replacing all the engines on the laboratory spacecraft, Zhao Qian's heart made huge waves.

Why change them all? As if hearing Zhao Qian's heart, Fang Qianmo asked Li Yu aloud: "Even the conventional engine needs to be replaced?" There's no need to replace this, right? ”

The maximum speed of a conventional engine, that is, the sub-light speed, is only a very good technology in the laboratory, which can make the spacecraft reach two-thirds of the speed of light.

The conventional engine is also the place where Li Yu has paid the least attention, and now Li Yu said that even the conventional engine must be replaced, is it possible to achieve the speed of the conventional engine, and it can reach the speed of light?

"Of course I have to change it, I have increased the maximum speed of the conventional engine to the speed of light, and it is extremely necessary to replace the engine."

Li Yu's words, of course, surprised everyone in the entire laboratory. It is almost impossible to increase the speed of an object to the speed of light in a conventional state of navigation.

Although Einstein's theory of relativity is flawed, one of his conclusions is not wrong, pushing the speed of an object to the speed of light, and the energy consumed by it is infinite.

This rule, which is limited by the physical rules of the universe, is impossible to break. Li Yu now says that he can increase the speed of a conventional engine to the speed of light, which is an incredible thing.

"This year, we have been researching, why haven't I heard you conduct research on this?" Lin Wanbai said incredulously.

In fact, the engines of the spacecraft in this spacecraft, no matter what kind of technology are used, can be divided into two categories, one is the conventional engine, which cannot break the limit of the speed of light.

The other type of unconventional engines have adopted various methods to avoid the fact that the speed of three-dimensional objects cannot break through the limit of the speed of light, so that the speed of the spacecraft can reach many times the speed of light on the scale of three-dimensional space.

But in fact, the speed of the spacecraft itself does not exceed the speed of light.

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