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

"Let me think about it again."

Lu Yongchang waved his hand and dispersed the crowd around him.

"Yongchang."

A familiar voice came from behind.

Lu Yongchang turned around and met Su Yutong's eyes.

From Su Yutong's eyes, he saw countless unspeakable emotions.

For a moment, Lu Yongchang didn't know what to say, so he could only cast a guilty look at her.

Su Yutong sighed softly, and handed the high-concentration nutrient solution in his hand to Lu Yongchang: "Pay attention to your body."

"You can't fall now."

Lu Yongchang breathed a sigh of relief, and after receiving the nutrient solution, he smiled and nodded.

"Do not worry."

……

After coming out to take a breath and relieve some brain fatigue, Lu Yongchang locked himself in the office again.

This time, he returned to his seat, ignoring the holographic projection above the desk.

The theoretical basic work that should be done has been completed, and it is time for him to seek help from the technology tree!

I hope that the fog at the top of the technology tree can dissipate a little this time.

Holding a faint expectation, Lu Yongchang took a deep breath and quickly closed his eyes.

Thoughts move.

When he opened his eyes again, the world in front of him had changed.

The technology tree composed of bright white lines is quietly suspended in the familiar fluorescent green background.

Lu Yongchang raised his head and turned his attention to the top of the technology tree.

Compared with not long ago, the fog above the technology tree has dissipated a lot.

Obviously, his "explosive liver" during this period still has an effect.

At the same time as several brand-new cursors appeared on it, the boundary between the fourth-level civilization and the fifth-level civilization also appeared in front of his eyes.

[Theoretical Breakthrough: Superstring Gravitational Field Equation]

[The Missing Constant: Finding the Graviton]

【…】

[Preliminary application of the superstring gravitational field equation: curvature navigation technology]

[Advanced Application of Superstring Gravitational Field Equation: Elementary Gravitational Shield]

The line of sight gradually moves upwards.

At the top of a series of dim cursors, a barely visible cursor appeared in front of Lu Yongchang.

【Grand Unified Theory】

When seeing this cursor, Lu Yongchang choked slightly.

Sure enough, he didn't expect it.

The key to entering the fifth-level civilization is to master the grand unified theory.

And the superstring gravitational field equation is also the last piece of the puzzle of this theory!

Lu Yongchang quickly retracted his gaze, and focused on the cursor that was not half bright.

[The Missing Constant: Finding the Graviton]

After just a few seconds.

A strong sense of dizziness followed.

At the same time, an unparalleled sense of clarity emerges in the brain.

"Overclocking" time is precious, especially for this kind of technology that has not yet been mastered halfway, if you are not careful, you will fall into a coma.

Therefore, Lu Yongchang did not waste time, and directly put all his attention on the two keywords of graviton and constant.

In an instant, countless knowledge points spewed out in his mind.

Experimental data, theoretical system...

These knowledge points are mixed together and collide with each other, providing continuous inspiration for Lu Yongchang.

……

Perhaps because they knew what Lu Yongchang was doing at this time, the researchers in the laboratory would turn their heads to look in the direction of the office from time to time.

no way.

Whether it is the gravitational field equation based on superstring theory or the search scheme for gravitons, they have attracted the attention of many scientists.

……

"Shh!"

after one day.

Under everyone's gaze, the office door suddenly opened!

A figure with a haggard complexion but extremely bright eyes walked out of the office unsteadily.

"professor!"

Tao Yuda was the first to put down the work in hand, and greeted Lu Yongchang.

Looking at Tao Yuda who was trotting towards him, a slightly weak smile appeared on the corner of Lu Yongchang's mouth.

"Professor, is there any progress?!"

Lu Yongchang nodded slightly.

Under the overclocking thinking provided by the technology tree, he successfully grasped that hint of inspiration.

only……

Is it too difficult to realize this inspiration?

Thinking of this, Lu Yongchang's expression suddenly became weird.

"Professor? You said it!"

Tao Yuda and a group of scientific researchers looked at the weird expression on Lu Yongchang's face, and felt as if they had been scratched by a cat.

"I know you are in a hurry, but don't worry, let me think about it first."

As if he didn't see the fire-breathing eyes of the people around him, Lu Yongchang waved his hands and stood there meditating.

Tao Yuda: "..."

"Hiss..." After thinking for a while, Lu Yongchang scratched his head and shouted, "He Bi Neighbor?! He Bi Neighbor?"

"Teach, professor, I'm here!"

A faint voice came from the periphery of the crowd.

After a few seconds.

Under the gaze of everyone, He Bilin squeezed his way into the crowd with difficulty.

"Are there any newly observed black holes around us?"

Lu Yongchang looked very solemn, and asked directly.

"Ah? Black hole??" He Bilin was directly confused by the question, "Teacher, professor, didn't you say that you are looking for a habitable star system?"

"Why, why did it become a black hole again?"

As he spoke, He Bilin reached out and dragged a holographic projection, and called up a series of observation records with a puzzled face.

"Black hole..."

He Bilin's voice was full of hesitation: "Not long ago, I discovered traces of a small black hole."

"But the distance between it and us..."

"It's a little far."

Lu Yongchang's eyes suddenly lit up: "What about the specific value?"

"About 132 light-years."

He Bilin spread his hands and responded helplessly.

Chapter 531

Looking at the star map in the holographic projection, Lu Yongchang couldn't help but fell into deep thought.

132 light years...

It sounds like this distance seems a bit exaggerated.

Since the development of human civilization, it is estimated that the total mileage of interstellar voyages has not exceeded this figure.

But that is the past tense after all.

For today's human civilization, 132 light years is actually not an unbearable distance.

After loading the anti-matter engine, the maximum cruising speed of the human fleet can be close to 50% of the speed of light.

In other words, even adding the time of acceleration and deceleration, it only takes about 350 years for humans to reach the vicinity of that small black hole.

Of course, this is with sufficient fuel.

And the problem is precisely here!

Although the Dyson cloud antimatter preparation base has been successfully built, the antimatter stockpiled by human beings is far from enough to support such long-distance voyages.

Of course, there are corresponding solutions.

Or, human beings wait for a while on Dawn Star.

Wait until the Dyson cloud antimatter preparation base produces enough antimatter fuel before starting the interstellar voyage.

Or, run with the Dyson cloud, go to a nearby star system, and complete the replenishment of antimatter fuel there.

Then adjust the course to the black hole.

It took less than a second to think, and Lu Yongchang came up with the answer.

The second option!

"That's it."

Lv Yongchang pointed firmly at the small black hole in the holographic projection: "Whether humans can master the curvature navigation technology depends on how powerful it is!"

"Complete the pre-sail preparations as quickly as possible."

"As for the antimatter fuel issue..."

Lu Yongchang moved his fingers slightly, and slightly changed the route in the star map—he marked a star system that was on the way.

"Just in this star system replenishment."

Zero quickly gives the result of the calculation.

Counting the time to replenish antimatter fuel, the entire voyage will take 402.3 years.

He Bilin checked the star map and nodded in response.

Not too long.

Replenishment of antimatter fuel allows Zero full control.

All they have to do is close and open their eyes, and the destination will be reached.

But the next moment, a trace of confusion rose in his eyes.

After going around in a circle, Professor Lu still hasn't explained why he went near the black hole!

"Professor, there is no problem with the route, it's just..."