It's reasonable for me to have a two-way foil for a second-level civilization, right?

A certain city on the surface of Dawn Star.

"Dear Mr. Wang Mingyuan, congratulations, you have successfully passed all aspects of the test."

"The second phase of the Dyson sphere project is about to start. Please prepare your personal belongings and go to the Dawn Star synchronous orbit No. 1 port to board the plane..."

Seeing this message in the holographic projection, Wang Mingyuan, who was resting on the sofa, jumped up suddenly, and let out a series of strange cries of unknown meaning.

After venting his inner excitement, he raised his hand, rubbed his face vigorously, and forced himself to calm down.

"Boarding at Port No. [-]!"

He excitedly said to himself: "Yes, yes, it's time for me to pack my luggage!"

……

The surface of Dawn Star, the first laboratory of the People's Union Academy of Sciences.

After 30 years of research, under the leadership of Lu Yongchang, the Academy of Sciences finally broke through the key technology of the antimatter engine.

Standing in front of the huge holographic projection, Lu Yongchang raised his head and looked at the huge propulsion device and nozzle in the projection, with a strange brilliance in his eyes.

As long as this experiment is successful,

Human civilization has officially crossed the threshold between the third-level civilization and the fourth-level civilization, and got rid of the title of low-level civilization!

The antimatter engine uses antihydrogen and hydrogen atoms as fuel.

In theory, when it starts working, antihydrogen and hydrogen atoms are injected into the reaction chamber under the influence of a magnetic field.

Then, under the precise control of the control system, these antihydrogen atoms will contact each other with hydrogen atoms, resulting in an annihilation reaction.

When antihydrogen atoms are annihilated, in addition to producing high-energy gamma rays, they will also produce some mesons.

Among them, neutral mesons will quickly transform into high-energy gamma rays, but charged mesons have a certain period of life.

The normal half-life is 28 nanoseconds.

And these mesons, which carry more than 60% of the annihilation energy, fly at a speed close to the speed of light.

Therefore, their half-life will be extended to 70 nanoseconds.

Although the time is extremely short, they can still fly quite a distance with their ultra-high flying speed close to the speed of light.

Under the confinement of the magnetic field, these charged mesons close to the speed of light will be ejected directly from the nozzle of the antimatter engine!

As a result, it brings an incomparably huge thrust to the starship equipped with the antimatter engine!

This is the propulsion principle of the antimatter engine.

It's very simple, but the benefits it brings are many times stronger than Hall thrusters!

"The first antimatter engine propulsion test begins now."

After all the preparations were completed, Lu Yongchang calmly issued an order: "Prepare to inject antimatter."

……

Near Dawn Star.

A spaceship with a strange shape stays quietly in the cold and empty space.

The test starship is equipped with a small fusion reactor.

Its function is to provide the starship with the most basic energy supply when the antimatter engine has not been activated.

For example, magnetic field restraint device, central master control system...

Following Lu Yongchang's order, under Zero's control, a little antihydrogen atom was slowly injected into the reaction chamber through the magnetic field.

At the same time, at the other end, an equal amount of hydrogen atoms also enter the reaction chamber.

The two come into contact quickly under the action of a magnetic field.

Annihilation begins.

At this moment, the masses of positive and negative matter are all transformed into energy.

Among them, a small part of the energy is released in the form of high-energy gamma rays, which are then converted and absorbed by the devices around the reaction chamber to be used by the starship.

Most of the energy is released in the form of mesons.

Within 70 nanoseconds, these charged muons have not yet decayed.

In this short 70 nanoseconds, they were deflected under the action of the magnetic field, and spewed out from the nozzle of the antimatter engine!

At this moment, a dazzling light appeared at the nozzle of the antimatter engine!

next second.

Driven by these mesons approaching the speed of light, the starship rushes forward with extremely high acceleration!

……

inside the laboratory.

"test was successful."

Zero's voice sounded in the laboratory.

After a brief silence, a burst of warm applause and cheers came from all directions!

As for Lu Yongchang, who was standing in front of the huge holographic projection, the moment the experiment was successful, his mind had already been turned upside down!

Chapter 516 Level [-] Technology Tree

Feeling the familiar movement deep in his mind, Lu Yongchang's eyes flashed with joy.

This feeling...

The technology tree space has been promoted.

At first, Lu Yongchang was a little worried when he saw the experimental starship galloping out like a wild horse.

After all, the success of the anti-matter engine project needs to be tested in various aspects before a conclusion can be drawn.

But now, Lu Yongchang completely let go of Gao Xuan's heart.

The reason is simple, as of now, the technology tree space is the most accurate criterion for judging the success of key scientific research projects!

Thinking of the technology in the fourth-level technology tree, Lu Yongchang had infinite expectations in his heart.

He suppressed the excitement in his heart, calmly turned his head to look at Fang Xu, and called softly, "Brother Xu."

"Ok?"

At this moment, Fang Xu's complexion was slightly flushed, with a smile on his face.

Evidently, he was delighted at the successful operation of the antimatter engine.

But even so, after hearing Lu Yongchang's call and seeing the slightly serious expression on Lu Yongchang's face, he immediately restrained the smile on his face, and looked at Lu Yongchang with a slightly solemn expression: "Any questions?"

At this moment, Fang Xu was even ready to stop the antimatter engine urgently.

Seeing the solemn expression on Fang Xu's face, Lu Yongchang laughed dumbfounded: "Don't worry, there is nothing wrong with the antimatter engine."

"I want to rest for a while." Lu Yongchang pointed to the office in the distance, "You will direct the next experimental project."

Fang Xu subconsciously glanced at Lu Yongchang's thick dark circles.

Indeed, in the final development stage of the antimatter engine, Lu Yongchang, as the project leader, hardly had any rest time.

Now that the experiment has basically been declared a success, it is appropriate to take a break.

Thinking of this, he quickly corrected his expression, nodded with a serious face: "Don't worry, just leave it to me."

……

After returning to the office, as soon as his body touched the chair, Lu Yongchang couldn't wait to close his eyes.

Consciousness instantly entered a fluorescent green space.

Like the previous promotions, the bright white thin line continued to extend upwards, and the invisible barrier between the third-level civilization and the fourth-level civilization was quickly broken through!

With the continuous vibration of the fluorescent green technology tree space, Lu Yongchang's perspective also moved up rapidly.

The technologies that he had studied before flashed in front of him like a revolving lantern.

Lu Yongchang's attention was not attracted by these "passers-by".

Since entering the technology tree space, his eyes have been fixed on the dim cursor at the top.

After the bright white thin line broke through the barrier of the fourth-level technology tree, it quickly spread to the dim cursor.

【Antimatter Engine】

The cursor gradually becomes brighter.

Slightly dim white thin lines extend from it, stretching upwards like a tree.

[Preliminary Application of Antimatter: Antimatter Bomb]

[High-energy gamma-ray cluster cannon]

【…】

In addition to these slightly dim cursors, there is an already bright cursor that attracted Lu Yongchang's attention.

[Antimatter Factory: Elementary Dyson Ball Manufacturing Technology]

As Lv Yongchang turned his attention to this bright cursor, one technology after another quickly emerged in his mind.

After browsing, Lu Yongchang's "look" suddenly became strange.

This...isn't this the Dyson cloud and Dyson ring system that humans have already completed half?

No wonder there was no reminder in the technology tree space when this technology was completed.

Daringly, they took a shortcut and highlighted the technologies that the fourth-level civilization needs to master in advance.

Lu Yongchang withdrew his thoughts and extended his attention upwards as much as possible, trying to see more advanced technology.

【gravitational……】

After spending a lot of energy, in the end, he could only see these two vaguely visible words clearly.

Even so, Lu Yongchang's heart was still burning.

Could it be gravity manipulation technology? !

Thinking of the performance of the flagship of the Lator civilization on the battlefield, Lu Yongchang immediately strengthened his guess.

It seems that we must seize the time to upgrade the basic technology of the fourth-level civilization!

……

Near the main star Gliese 555.

The engineering ships are connected with each other to form a simple giant space factory.

Its main function is to process various building materials transported by the [Glutton] material storage ship, thereby creating pieces of extremely large Dyson clouds.

With the end of the first phase of the Dyson sphere project, these giant space factories constructed from the hulls of engineering ships also disintegrated.

"incredible……"

In Xuannv No. [-], which was in charge of transporting personnel, Wang Mingyuan pulled at the porthole and exclaimed in a low voice: "I didn't expect human beings to develop to this extent..."

"It's just...it's like watching a movie!"

The next moment, a strange male voice came from beside him.

"Brother, the hibernation awakening personnel, right?"

Wang Mingyuan turned his head and looked in the direction of the voice.

"Are you..." Facing the unfamiliar face, he asked cautiously.

It wasn't that he was timid, but within a few months after waking up, he found that there were big bosses everywhere around him.

Because of the problem with the awakening mechanism of the hibernating personnel of the People's Federation, all those who woke up before him were hidden "fairies".

You never know whether the uncle walking on the streets of the city is a researcher from the Academy of Sciences or a senior member of the parliament.

"I?"

Facing Wang Mingyuan's cautious inquiry, the man chuckled lightly, "I'm in charge of the second phase of the Dyson sphere."

"Hiss!" Wang Mingyuan gasped subconsciously.