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

"This is equivalent to the extra resistance that the curvature bubble needs to overcome when it moves forward."

He Bilin nodded thoughtfully.

"I probably understand."

"When the starship exits the state of curvature navigation, because the mass and size of the particles are much lower than that of the starship, they can still maintain the state of curvature navigation for a short period of time."

"At this time, because the particles are still in the state of curvature, they cannot be observed by ordinary observation instruments."

"Moreover, it contains a lot of energy. Once it encounters an object that blocks its progress, it will..."

He Bilin opened his palm suddenly: "Boom!"

"From our point of view, it looks like some kind of mysterious attack!"

"But...professor, how to verify this?"

Lu Yongchang smiled and pointed to the huge holographic projection in front of him: "Do the math."

"From [Curvature No. 3.13] exiting the curvature navigation state to the observation starship being attacked, the interval between the two was [-] seconds."

"Comprehensively the distance between the two."

"Just to get the speed of the attacking object: 1.1c!"

Hearing this, He Bilin hastily lowered his head to check the calculation.

"Really!" Looking at the result in the holographic projection, he whispered in surprise.

Lu Yongchang laughed: "So, before sailing on curvature, we need to confirm the safety of the channel."

"Once there is any macroscopic obstacle in the channel, the consequences could be catastrophic."

Fang Xu on the side also added: "That is to say, in a planetary system rich in interstellar matter, curvature navigation is strictly prohibited."

"of course."

Lu Yongchang thought for a moment: "Not only in the star system, but even in the star system, we need to be more careful."

"After all, we don't have the corresponding superluminal observation method yet."

"professor."

In the distance, Tao Yuda's voice came: "I have an idea."

"Do you think this characteristic of the curvature engine can be used to make weapons?"

Lu Yongchang was silent for a while, nodded, and shook his head again.

"Yes, but it seems...it doesn't have much effect."

"Before attacking, it needs to accelerate for a long distance to accumulate energy."

"In actual combat, it would be more efficient to use the curvature engine to project anti-matter bombs."

"A weapon against low-level civilizations." Tao Yuda said softly, "If we want to absorb the other party as a subsidiary civilization, the feature of the curvature engine should be a good weapon."

"Professor, think about our initial reaction."

"At that time, the Lator civilization did not use such methods against us." Tao Yuda shrugged, "Of course, the sailing distance of their flagships is not enough to trigger this effect."

"but if……"

"Professor, what do you think will happen?"

"At least, morale within civilization will become a huge problem!"

Lu Yongchang's face changed slightly.

After pondering for a while, he nodded: "In this case, then I will leave this research task to you."

Then, he turned to look at the old man with gray hair standing not far away.

"Academician Cao Liangcai."

"You will be responsible for the task of transforming the existing starship."

……

After leaving the laboratory, with the help of the robotic arm, Lu Yongchang directly boarded the robotic arm robot that was waiting at the door early.

The robot took him and drove towards Lu Yongchang's office quickly.

rear.

He Bilin looked at the back of the robot with envy.

"Xiao He, where is the robot you applied for?"

Fang Xu asked in surprise as he walked out of the laboratory door.

"...Academician Fang, my application has not been approved." He Bilin watched with a complicated expression as Fang Xu climbed onto the back of another robot.

"Oh, sorry, I forgot."

Fang Xu smiled and raised his eyebrows at He Bilin: "Come on, make a few more big projects, and I will approve your application."

He Bilin: "..."

……

After returning to the office, Lu Yongchang quickly sat down in his seat.

"Zero, close the door!"

When the voice fell, his consciousness had sunk into the depths of his mind.

Technology tree space.

In the mottled background, the technology tree outlined by the bright white lines is particularly bright.

Looking at the extremely bright cursor, Lu Yongchang breathed a sigh of relief.

The curvature navigation technology has passed the "verification" of the technology tree.

A bright white line flows out from the cursor, stretching upwards along the dim passage.

【Elementary gravitational shield】

【Grand Unified Theory】

These are the last two technologies for level [-] civilization to enter level [-] civilization.

Looking at the fog at the top of the technology tree, Lu Yongchang calmed down and focused on one of the dim cursors.

ps: More will be added tomorrow morning!

Chapter 656 Principle of Gravitational Shield

grand unified theory.

In the universe, at least in the universe currently recognized by human civilization, there are only four kinds of forces between microscopic particles.

Gravity, electromagnetism, strong and weak interactions.

From the beginning of stepping out of the earth to the development of the fourth-level civilization, the Academy of Sciences has only unified three of the forces.

Universal gravitation, because no graviton has been discovered, has been outside the theoretical system of human civilization.

Today, gravitons have been controlled by the Academy of Sciences, and the grand unified theory has reached the most critical step.

In the technology tree system, the half-dim, half-bright cursor also confirms this.

Just one step away from the door, the grand unified theory can be presented in front of everyone!

"Cross-level" analysis of key technologies is an extremely dangerous behavior.

In the past, Lu Yongchang would never have dared to take this risk.

But now, after the brain is quantized,

With his thinking ability greatly improved, he decided to take a risk.

Time is running out for the human fleet.

Under the guidance of the technology tree, Lu Yongchang's brain entered the overclocking state again.

An endless stream of inspiration comes from the depths of my mind.

Accompanied by it is a feeling of dizziness that I haven't experienced in a long time.

Enduring his dizziness, he quickly sorted out and integrated all the known information.

A mathematical model emerged bit by bit in his mind.

……

While Lu Yongchang was trying his best to conquer the Great Unification Model, He Bilin returned to the laboratory after a short rest.

According to Lu Yongchang's arrangement, he needs to lead the team to overcome the gravitational shield technology.

"Curvature Bubble..."

He Bilin frowned slightly, looked at the space-time model left by Lu Yongchang in the holographic projection, and muttered to himself: "This thing...is it really the predecessor of the gravitational shield?"

The function of the curvature bubble is very simple, it can smooth out the wrinkled space-time with the help of the gravitational field fluctuation.

But that's not how gravitational shields work.

Or rather, the exact opposite.

Only the distorted space-time caused by a strong gravitational field can effectively resist external attacks.

But here comes a problem.

Generating a powerful gravitational field to deflect incoming attacks is simple.

But I want to turn it into an "egg shell" to protect the starship inside, and keep the starship from any influence...

This is very difficult.

After all, generating a gravitational field around the starship will inevitably affect the starship itself.

He Bilin sat quietly on the chair, subconsciously imitating Lu Yongchang's movements when he was thinking.

His knuckles tapped lightly on the laboratory table in front of him, making crisp and clear sounds.

In the holographic projection, the space-time fluctuations of [Curvature No. [-]] in the state of curvature navigation are clearly presented in front of his eyes.

"... Surround the curvature bubble?"

He Bilin's eyes were full of confusion, and he muttered to himself.

As soon as the words came out of his mouth, he suddenly stopped his tapping on the countertop.

"Right, that is it!"

With excitement in his eyes, he quickly opened a holographic projection and raised his hand to operate it.

……

"...With the help of the gravitational field generating device, several powerful gravitational fields are generated around the starship."

Standing in front of everyone, He Bilin tapped the screen in the holographic projection lightly with his finger: "The function of these gravitational fields is to deflect external attacks."

"What about the main body of the starship?"

An academician interrupted He Bilin's words: "These gravitational fields will not only affect the navigation status of the starship itself, but also affect the accuracy and power of our attacks."

He Bilin chuckled, turned off the holographic projection screen, and then pointed to the space-time model that was still running in the distance: "Professor Lu has already told us the answer."

"Curvature bubble."

"Similar to the working principle of the curvature bubble of curvature navigation, we can use the anti-gravity field to smooth the space-time fluctuations around the starship."

"I probably understand what you mean...is it equivalent to generating countless small gravitational fields around the curvature bubble?" The academician who spoke before asked with his eyes brightened.

"Yes." He Bilin nodded, "We can also imitate the principle of the magnetic field shield and let it fluctuate according to a specific algorithm."

"This can greatly reduce the probability of the enemy cracking the gravitational shield."

"At the same time, with the help of zero computing power, the small gravitational field generation area is controlled in real time, and point-to-point defense is implemented against each attack."

The voice fell.

The laboratory was once again calm.

But soon, the calm was broken by warm applause.