After being full and thirsty, Anna removed the food on the table and began serving them desserts and drinks.

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

After a person is full, his brain will secrete a hormone, which makes people feel very good in spirit, so Lin Wanbai has this manifestation.

"Li Yu, has your research come to an end?" Zhao Qian completed the investigation well. Since Li Yu and the others came out, Zhao Qian decided to return this work to Li Yu and the others, and then concentrate on studying.

Originally, according to the original plan, Zhao Qian should have studied for two years and had an internship for one year. It was just because of the sudden incident in Mo's life that she started a certain degree of internship in advance.

Whether such changes are good or bad can only be determined by Zhao Qian's future development and then comment on it. Anyway, she is doing very well now.

"That's right, our research has come to an end. Next, we need to transform the laboratory spacecraft."

Li Yu made a general arrangement for the laboratory's next arrangement.

In Zhao Qian's eyes, the laboratory spacecraft that was already extremely mysterious and powerful is now undergoing transformation, which means that the technology has been upgraded. So how powerful will the spacecraft after the transformation be?

Anyway, whenever the laboratory has any technological breakthroughs, the experiment place must be its own spacecraft. Therefore, the five spacecraft in the laboratory are not uniform in style at all.

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

As others expected, Li Yu was the first to take action on the spacecraft's engine system, but he didn't know how powerful his modification was.

"Li Yu, how much does our engine need to be replaced?"

"Swap all!"

Changing them all? Fang Qianmo and the others were a little puzzled. Although they did not grasp the overall situation in this year's research, they knew the laboratory research projects clearly. It was not an easy task to replace all the engines on the spacecraft.

On the laboratory spacecraft, there are three main engines, one is a conventional engine, which can fly in a normal three-dimensional room with a maximum speed of sub-light speed.

The second type of engine is the superluminal speed engine, which allows laboratory spacecraft to sail at a maximum speed of 50,000 times the speed of light. This is the level that Li Yu has always achieved by micro-upgrades of this engine.

The third type of engine is the space jump engine. As the most important engine on the laboratory spacecraft, its improvement work is also the focus of Li Yu's attention. Now it can reach the normal jump distance of 5 million light-years.

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

Among them, although the basic principle of space jump engine is to use the wormhole principle, since the laboratory has developed space-time technology, it is not just wormhole technology.

Isn’t it normal to use space-time technology to the space jump engine?

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

I won’t talk about the wormholes that are naturally generated in the universe. If you want to open the wormhole manually, you can’t see anything in the wormholes before the galaxy. The energy consumption of wormholes across rivers can make galaxy-level civilizations so high that they doubt life.

The wormhole technology used by the Tiandi-level civilization will also make the cross-river-level civilization doubt their lives.

So besides wormhole technology, there is no other technology that can be used for space jumping? Yes! Of course there is! The universe is full of wonders. For example, the space teleportation that Li Yu has been studying is a technology that is much more advanced than wormhole technology. This technology cannot be played by ordinary heavenly civilizations.

There are also subspace navigation technology and other technologies. One of the common features of these technologies is that the energy demand is extremely large.

That is, the laboratory, and other civilizations, aren’t they all carefully developing their navigation technology? They have to compromise on the contradiction between technology and energy demand, which in turn limits the performance of the engine.

Unlike a laboratory, Li Yu never considers this issue. The issue that restricts the development of laboratory technology is never an energy problem.

The big horse pulls a small car, this is the norm in the laboratory. What Li Yu has to consider is always how to further improve the performance of the engine, rather than reducing the performance of the engine for the purpose of the engine's energy needs.

The main energy system used by the laboratory is now a space-time reactor. This energy source involving space-time technology will make people from other civilizations envious to death.

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

Because fusion reactors are technology that laboratories have long eliminated.

The country's secret energy source for the future is a material reactor, which is already a certain level of knowledge. However, this technology is not even as good as the technology dark energy reactor technology that has been eliminated by the laboratory!

In fact, for Li Yu, using the dark energy reactor to drive the laboratory equipment after this upgrade is no problem at all. At most, Li Yu will carry out a major upgrade and transformation of the dark energy reactor.

However, after having a better space-time energy reactor, who can use a dark energy reactor with a lower level?

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

When Zhao Qian heard what Li Yu said just now that he wanted to replace all the engines on the laboratory spacecraft, a huge wave arose in his heart.

Why do you need to change them all? As if you heard Zhao Qian's voice, Fang Qianmo asked Li Yu: "Even conventional engines need to be replaced? There is no need to replace them, right?"

The maximum speed of conventional engines is just sub-light speed. The current technology of the laboratory is already a very good technology to make the spacecraft reach two-thirds of the speed of light.

Conventional engines are also the place where Li Yu pays the least attention. Now Li Yu says that even conventional engines need to be replaced. Could it be that the speed of conventional engines 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. It is extremely necessary to replace the engine."

Li Yu's words certainly surprised everyone in the entire laboratory. It is almost impossible to increase the speed of an object to the speed of light under normal navigation.

Although Einstein's theory of relativity is flawed, his conclusion is not wrong. To push the speed of an object to the speed of light, the energy consumed is infinite.

This rule is limited by the physical rules of this universe and cannot be broken through. Li Yu now says that he can increase the speed of a conventional engine to the speed of light, which is an incredible thing.

"We have been researching this year. Why haven't I heard you have conducted research on this area?" Lin Wanbai said in disbelief.

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

Another type of unconventional engines have adopted various measures to avoid the possibility of breaking through the limit of the speed of light by three-dimensional objects, so that the speed of the spacecraft can reach many times the speed of light in the scale of three-dimensional space.
Chapter completed!