The most gratifying thing is that the engine technology that mankind has been studying for more than two hundred years has finally loosened.

That's curvature engine technology.

The breakthrough came from the alien spaceship.

After receiving the news, Liu Wei immediately took a patrol boat to the depth of the earth's core at 5,200 meters, where the alien spacecraft was located.

The patrol boat slowly burrowed into the crater and dived nimbly in the countless flames, like a phoenix bathed in the flames, flying freely.

The spacecraft soon dived into the asthenosphere. In the high-pressure molten slurry, the fire elves were so mischievous that they wanted to pull the patrol boat, and the speed of the patrol boat slowed down slightly.

There are whirlpools and turbulence here, and if you don't do it, it will damage the patrol boat, so you have to be careful.

The 200-kilometer asthenosphere has finally dived, and the next mantle can move forward quickly.

Researchers have drilled holes in the area, and patrol boats can follow the tunnels all the way down with little to no obstruction.

Surrounded by high-pressure solids, there are occasional collapsing obstacles that hinder the boat's progress, but the overbearing patrol boat can use lasers to cut through the obstacles and fly away.

I don't know how long I sailed, but there seemed to be flowing water surging underneath, gurgling and endless.

The patrol boat has reached the Gutenberg face, which is the junction of the Earth's core and the mantle, and the liquid is below.

These liquids are very dense and the pressure is very high, and the patrol boat can only slow down and dive slowly.

The process was a bit long, and after about 4,000 kilometers underground, a mixture of solid-liquid finally appeared, like a pot of soup, baked in a hot "pressure cooker" but could not be cooked.

As the patrol boat continues to dive, the amount of solids increases, and the dive becomes more and more difficult. At first, the patrol boat could rampage to push the solid away. Later, there were large solid blocks, and patrol boats often had to carry out excavation work. After about another 500 kilometers of diving, the patrol boat was completely covered in solids, and it had to reduce its speed to a minimum and excavate.

If you want to excavate a permanent tunnel to the center of the earth, it will be costly. Noodle Star is a planet, and due to the hydrostatic equilibrium, the pressure generated by gravity and the pressure gradient formed by the pressure gradient in the opposite direction of the former are balanced, so these tunnels will naturally be filled.

What's more, there is also the factor of geological movement, so each dive requires a lot of excavation routes, which consumes a lot of time.

The patrol boat was almost passing through the iron, and the extremely slow speed would have lengthened the journey to the center of the earth, and the monotonous iron walls around it pressed against the patrol boat as if it were crushing.

It's been three days since I arrived at my destination, and I thought it was a research institute surrounded by solids, but I didn't expect it to be a cave.

It is a giant cave where the walls "breathe" regularly, as if brewing the breath of life. It's not dark in the neighborhood, but it seems to be shining with red light, and there is the glow of a sunset.

The walls are made of femtorice and have biological properties, acting as a vessel for life in the dead heart of the earth.

The main body of the cave is a number of research institutes, most of which are nano research institutes built in the past ten years, equipped with advanced research facilities, and also have some simple production equipment to ensure the needs of research.

In the center of the cave is the alien spaceship, and this patrol boat seems to have magical power, so people don't want to take their eyes off it.

The whole ship is ellipsoidal, and the scarlet shell seems to breathe, and after many years of silence, there is still the breath of life.

The ship had no clear boundaries, as if the bow, belly, and stern of the ship were blended together, and there were no weapons systems in sight, not even a nozzle outlet in the tail.

As soon as they saw this spaceship, everyone was in awe. It is a condensed ultra-high-tech spaceship that surpasses humans by several years in any field.

It could be measured in hundreds or even millennia.

However, now the ship is in human hands.

When ancient people got a mobile phone, they may not be able to understand the principle inside, but they can still understand how to use it.

Even if the shell is taken off, relevant research can be carried out, and the principle of the electric cell may be understood.

So that's what humans do.

Since the ship was devoid of any energy, the researchers made small openings in the ship's hull. Under the continuous illumination of ultra-high-energy lasers, the ship's shell was quickly pierced.

Then there's the realm of nanobots, where a large number of nanobots carefully burrow into the spacecraft through various small holes. At first, the robots were extremely slow to explore, tiptoeing out the ship's central computer.

Thankfully, the other party's computers are still quantum computers, but these quantum calculations are femtometer-level.

It's too difficult to make a computer the size of a femtometer with super computing power. It's easy to build a femtometer-sized wall, but it's almost hard to build a femtometer-sized quantum computer.

With the current micro-industrial technology of human beings, it is impossible to build a femtometer-level quantum computer.

As a result, the researchers had no choice but to decipher the work and abandon the manufacturing technology associated with it.

If this quantum computer is a pie that is impossible to touch, then the curvature engine is a dazzling gold.

It's right there, as if it's at your fingertips, and researchers can parse it with existing technology.

In the past, the curvature navigation hypothesis was to use negative energy to create a bubble of time air, wrap the spacecraft, and use negative energy to flatten the space behind the spacecraft to reduce its curvature, and then make the space curvature in front of the spacecraft greater than that in the rear, indirectly pulling the spacecraft forward.

Another hypothesis is that the same effect can be achieved by directly using negative energy to increase the curvature of space in front of the spacecraft.

Moreover, the expansion rate of space is greater than the speed of light, so that it can achieve faster-than-light travel without violating the theory of relativity.

However, it has been calculated that the value of the negative energy required for such a curvature voyage will be greater than the total energy of the universe, which is obviously impossible.

As a result, the development of the curvature engine was shelved, and human society began to study more advanced methods such as wormholes and spatial jumps, but it could not find a clue at all.

Thanks to the curvature engine on this alien spacecraft, it gives humans a viable way to navigate curvature.

Since the curvature engine was still intact, it was installed on a patrol boat for experiments.

It turned out that the patrol boat could be accelerated to 100,000 km/s, but its speed could no longer be increased.

Some people think that there is a problem with the curvature engine, while others think that it is not a curvature engine at all, but a conventional drive method.

However, after comparing the atomic clock on the noodle satellite with the atomic clock on the patrol boat, it was found that the two matched.

This shows that the spacecraft went into curvature navigation, otherwise the two atomic clocks would have been different due to relativistic effects.

The reason why the spacecraft does not go up can only be the problem of energy supply, that is, cold fusion is not enough to carry out a curvature voyage faster than the speed of light.

After analysis, the curvature engine converts the energy produced by cold fusion into dark energy, thus initiating a curvature voyage.

This shows that dark energy can also change the curvature of space, and the curvature engine only converts conventional energy into dark energy, or directly uses dark energy to change the curvature of space, and then realizes curvature navigation.

Seventy percent of the universe is dark energy, and it is clear that it will be easier to use dark energy to change the curvature of space.

Moreover, human research on dark energy has yielded some results, so mankind is slowly unraveling the mystery of curvature navigation technology.