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

……

two weeks later.

Lu Yongchang frowned slightly, staring intently at the dozen or so holographic projections in front of him.

In the holographic projection, there are cabin images of small gravity cabins.

This is the second gravity chamber experiment.

Different from the first gravity chamber experiment, the subjects of this experiment are a group of mice whose bodies have been fully strengthened.

Yes, as early as a week ago, Magna's body-enhancing hormone experiment was a success.

The combination of the medical cabin and high-concentration nutrient solution perfectly meets the physical needs of these "energy-consuming consumers".

Of course, in order to allow these mice to stay safely in the medical cabin and receive reinforcement, Lu Yongchang directly sedated them.

then……

During a week of deep sleep, the bodies of these mice were strengthened in all directions.

After various inspections and tests, the comprehensive physical fitness of these enhanced mice is more than double that of normal mice.

then,

These lucky ones were forced to accept the next experiment - the genetic modification of Magna's visceral omentum.

After the two transformations were completed, these mice became the ideal experimental subjects in Lu Yongchang's mind.

"Let's start the second gravity chamber test." At that time, Lu Yongchang's eyes were full of smiles, "I believe they can definitely adapt to life in a high-gravity environment."

……

In Lu Yongchang's view, the results of the first gravity chamber experiment were not perfect.

On the one hand, the experimental subjects only completed genetic modification of visceral omentum.

This leads to a phenomenon.

In high-gravity environments, many mice die without internal rupture.

Although the time of death and the circumstances of death were different for each mouse, the cause of death was similar.

First, in a high-gravity environment, the mice's heart's blood supply capacity is insufficient, resulting in hypoxia in the brain.

Second, the high gravity caused a large number of capillaries to rupture in the mice, which eventually caused extensive bleeding.

Although there are other causes of death, these two conditions are the autopsy results of the vast majority of dead mice.

On the other hand, in order to test the visceral capacity of the modified mice as soon as possible, Lu Yongchang accelerated the gravity lifting speed of the gravity cabin.

The experimental data obtained in this way does not match the future living environment of human beings.

In simple terms, the first experiment only obtained the highest bearing capacity of the visceral omentum, but ignored its performance in a long-term high-gravity environment.

The latter is precisely the most important data in this experiment.

Even normal humans can withstand an equivalent gravity of more than 5g in a short period of time.

If you lie flat and take various protective measures, ordinary people can withstand more than 10g of gravity in a short period of time.

But if it takes longer...

All kinds of joints and even organs in the human body will suffer extremely serious damage due to the huge gravity.

The end result, of course, is death.

Because of the above two factors, Lu Yongchang ordered the opening of the second gravity chamber experiment.

The second experiment was larger.

In order to make the experimental results more in line with the real situation, all the mice were divided into more than ten groups and placed in different small gravity chambers to live.

The equivalent gravity of the small gravity cabin is evenly distributed in the range of 2g to 5g.

The entire experiment lasted for one week.

Now, the second gravity chamber experiment has come to an end.

The mice in the holographic projection are about to "regain their freedom".

Of course, in different gravity chambers, the performance of the mice is also completely different.

In the gravity chamber with an equivalent gravity of 2g, the mice are in good spirits.

run, jump...

Just like living on earth.

Such a scene is undoubtedly what Lu Yongchang wants to see the most.

As the equivalent gravity increased, the mental state of the mice gradually deteriorated.

Even, in the gravity chamber with an equivalent gravity of 5g, the mice lay motionless on the ground.

Only the slightly heaving chest can prove that they are still alive.

"Prepare to stop the gravity capsule."

After observing for a while, Lu Yongchang opened his mouth and gave an order: "After the gravity cabin stops running, immediately check the physical condition of each mouse!"

Mao Zhengzhi on the side nodded quickly, and the expression on his face became a lot more dignified.

The fruits of labor in the biological laboratory during this period will be tested soon!

……

The rotation speed of the gravity cabin slowly decreased.

The little white mice that were originally on the "ground" floated into the air involuntarily.

Perhaps because they are used to the gravity environment, they were particularly unfamiliar with the zero-gravity environment at first.

The little white mice living in the 2g gravity cabin were the first to "return to their senses" and remembered their original way of life.

They grab the surrounding objects and try to maintain their balance as much as possible.

Time passed by minute by minute.

The mice that experienced the equivalent gravity of more than 4g still did not move.

Seeing this, Lu Yongchang frowned slightly.

"Let's take a look at the physical condition of these mice."

After the voice fell, the big mechanical hand quickly grabbed them and grabbed them out of the gravity cabin.

To save time, they were thrown directly into the medical cabin.

Silver-white nanorobots were injected into their bodies.

A brand new holographic projection quickly unfolded.

"The brain is severely damaged, and both eyes are blind..."

Lu Yongchang looked at the data that appeared one by one in the holographic projection, and muttered to himself: "It seems that there is still a problem with the blood supply of the heart."

On the side, Mao Zhengzhi was not idle either.

He and a group of scientific researchers quickly checked and counted the physical data of the remaining mice.

"Professor, look."

He stretched out his hand and dragged the holographic projection aside: "According to the current data, the internal organs of the mice that have lived in an environment equivalent to 3.6g for a long time have suffered some damage to their internal organs. Although it is not fatal, it is a real injury."

"If you continue to increase the test time, the injury may be more serious."

"The 3.8g equivalent gravity will cause slight deformation of their joints."

"Based on both, the survival limit of this batch of mice should be within the equivalent gravity of 3.5g."

Lu Yongchang glanced at the data dragged by Mao Zhengzhi, and nodded slightly.

"3.5g is more than enough for Dawn Star."

"The next stage of the experiment will be handed over to you."

Chapter 421: A 80-Year Covenant

For Lu Yongchang's words, Mao Zhengzhi was not surprised at all.

He even breathed a sigh of relief.

Is this familiar scene finally coming? !

"Then, professor, are you going to..."

Mao Zhengzhi asked curiously.

Lu Yongchang glanced at Mao Zhengzhi with a half-smile: "Did you forget the starship of the Rathor civilization that was seized back then?"

"I have to study the magnetic shield technology."

Mao Zhengzhi's expression suddenly became serious: "Excuse me."

"Professor, you are busy with your work, and the biology laboratory will not bother you."

Lu Yongchang was amused by Mao Zhengzhi's reaction.

He shook his head with a smile, walked towards the door of the laboratory, and said, "Remember to notify me before the implementation of the human genetic modification plan."

"Be careful. For human civilization, it is as important as magnetic shield technology."

Looking at Lu Yongchang's back, Mao Zhengzhi nodded solemnly.

Immediately, he turned his head to look at the scientific researchers who were "watching the show".

"Why are you standing still?"

"Aren't you ready for the next experiment?"

"Who is that, go and check if there is any problem with the genetics of the mouse."

"..."

……

"Professor, the appointed time has come."

The avatar of Zero suddenly appeared beside Lu Yongchang, reminding him softly.

"Agreement? What agreement?" Lu Yongchang frowned and asked subconsciously.

"The agreed communication time with the human civilization of Proxima Centauri."

Zero quickly opened a holographic projection: "It is October 2381, 10 in the Earth calendar."

"Exactly 80 years since the last communication."

"According to the agreement, the first communication will be initiated by People's Federation."

"Of course, according to the agreement, you can postpone the communication for 20 years at your discretion." Zero reminded intimately.

Looking at the recorded items in the holographic projection, Lu Yongchang's eyes showed a sudden look.

I remembered.

After solving the Rathor civilization at that time, he also carried out a "technical exchange" with the human civilization of Proxima Centauri.

"Over Proxima Centauri, how is the development of the social public support system?"

Lu Yongchang asked Zero with great interest: "I remember asking you to provide computing power support for them?"

The avatar of Zero shook his head: "Professor, according to the order at that time, I do not have the authority to observe the internal development of human civilization in Proxima Centauri."

"In the process of promoting the social public support system, I only provided computing power support."

"Is it necessary to untie the restrictions and observe human civilization in neighboring stars?"

Lu Yongchang quickly waved his hand: "Forget it."

"Just wait until I ask myself."

Although he can let Zero spy on the development of human civilization in Proxima Centauri.

However, he had already made a promise at that time. As the chief scientist of the People's Federation, he would not do such a thing that would go against his will and corrupt his character.

"However." Zero opened his mouth again and added, "Since 40 years ago, I have not received a calculation request from the human civilization of Proxima Centauri."