Lu Yun kept shuttling within the timeline, repeatedly refreshing the achievements of BC9965 with new research results.

In the process of timeline refresh again and again, the ignition energy efficiency of controlled nuclear fusion is also getting closer and closer to the limit.

Every time Lu Yun brought a new document, it would make these researchers excited for a long time.

Such excitement made Lu Yun feel that he was approaching success step by step.

But......

But the situation is becoming more and more wrong.

By the thirteenth refresh, the new papers and experimental data that Lu Yun was able to obtain had shrunk to less than ten.

On the twenty-seventh refresh, Lu Yun saw scorched earth all over the ground when he came to BC9965.

1,000 blocks, covering an area of 80,000 square kilometers......

Completely reduced to ruins.

The bleak wind blew the lonely Lu Yun, making him stand on this dark and sunken earth, his face full of astonishment.

"The Legend of the Fairy Tree"

Looking around, all I could see was a black scorched earth.

It's obvious......

This was an explosion caused by a failed experiment.

But of course, this confusion is only for a moment.

After all, in principle, it is equivalent to the explosion of a hydrogen bomb......

Even for foundation-building monks, it is unknown whether the residual radiation here will affect them.

Lu Yun immediately fled three hundred kilometers away, followed by him and immediately stepped into the time gate, looking for the date of the explosion.

It took a full three hours......

Lu Yun found that moment in the timeline.

December 14, 9978, 9:13:33 p.m. BC.

The calm night sky was lit up with a loud thunder sound.

The ground shook violently, and a powerful shockwave engulfed everything with a visible expansion.

The ground was pressed directly into it by a huge impact!

The soil a little farther away was directly swept away by the huge force, and then disappeared directly under the absolute heat!

The huge experimental base, which covers an area of 80,000 square kilometers, was shattered in an instant!

Trees closer to the base were annihilated, and the rocks melted and disappeared at a rate visible to the naked eye...... Even the trees that were far away from the center of the explosion began to burn violently after the baptism of the violent shock wave!

Although Lu Yun was three hundred kilometers away from the explosion site, that deadly sense of threat was still baptizing everything in Lu Yun's heart, making him choose to close the distance through the space-time gate again.

However, even if the distance is magnified to a thousand kilometers away......

The tremors from under his feet were still there.

The light from the explosion was still not visible.

And at this distance, the picture is even more shocking.

A huge mushroom cloud rose into the sky, and the darkness of the night was completely dispelled, making the night brighter than the day, and it seemed to illuminate the entire Northeast Plain.

The burning trees and the awakened animals of the plains are fleeing in panic.

On the plains under the bright light, this burning night......

It's like purgatory.

It's terrifying.

And this ...... It's not a hydrogen bomb in the true sense of the word.

But this kind of power is shocking enough.

This is the top weapon in the hands of mankind.

Lu Yun didn't stay here, he just left immediately after confirming the time.

He enters the timeline and sets out to avoid this tragedy.

Of course......

Lu Yun eventually succeeded in saving the lives of all the researchers in the 80,000 square kilometers.

So that this "nuclear explosion" did not happen in the end.

At the same time, in the file library of "Project Zero", a new note in red will be visible to everyone before each preview......

However, even Lu Yun saved everyone's lives......

But the number of lab reports and papers he could get at the end of the timeline was still decreasing.

So much so that by the thirtieth refresh, Lu Yun only added an experimental paper to the file library of the "Project Zero Team".

At present, at a high temperature of 120 million degrees, the strong magnetic field binds the collision time of the D-T elements, which has persisted until 970 seconds.

Indeed, it seems to be on the verge of success.

But...... After all, it didn't work out.

Thirty refreshes have repeatedly updated the scientific and technological accumulation of the starting point, which has greatly shortened the research and development time of each project team......

But, still not enough.

At this moment, Lu Yun stood in front of Qin Lijuan for the 31st time in BC9965.

Lu Yun's face was very serious and solemn.

Because this time, Pan Lishan did not hand over the hard disk to himself.

That's what it means......

Lu Yun has nothing to brush in his hands.

Even before meeting Qin Lijuan, Lu Yun also went to BC9960 and BC9955 respectively.

Still no new papers or experimental data are available.

At BC9960, the average age of the entire base has reached eighty years.

A large number of core researchers have died......

Not to mention that the entire base has made breakthroughs in experiments, the total amount of knowledge they have is even regressing.

That's what it means......

If Lu Yun couldn't bring back new experimental records or new papers in 9965 BC, then his plan would be a complete failure.

At this time, Lu Yun sat directly in the cafeteria, opposite Qin Lijuan.

He asked bluntly:

"Is it still a matter of materials?"

Qin Lijuan's eyes were still complicated when she looked at Lu Yun.

Although this is the 31st time that Lu Yun has communicated with Qin Lijuan during this time period, it is the first time for Qin Lijuan every time.

After hearing Lu Yun's question, she nodded:

"That's right, it's still a matter of materials."

She put the fast child on the tray, but changed the topic for the first time:

"It seems that those Project Zero teams are us?"

Lu Yun gave a summary neatly.

"It's the owner of the base in BC 9965."

Qin Lijuan nodded slightly, and then she brought the topic back to the material:

"Before the teacher died, he told me something."

"To find this material, it not only requires technological breakthroughs, but also manual accumulation."

"It even takes luck."

She said, smiling bitterly:

"Maybe it's like Azimovich said......"

"Nuclear fusion will only be achieved when the whole society needs it."

Lu Yun understood what this meant.

Although there are a lot of people in the base now, things like "inspiration" can't be stacked by quantity.

The development of history has its inevitability, and controlled nuclear fusion is not destined to be a creation that can be produced in this era.

Even if it is possible to refine the existing theory to the extreme......

Even if you have a mature fusion result that can be reversely studied......

After all, the answer is two words - "failure".

He lowered his head and thought in silence.

I was wondering if I could find a solution to the material problem in the timeline.

"Luck?"

"Inspiration?"

"It comes down to probability."

"Even if it's a small probability......"

"But the possibilities in parallel timelines are endless."

"I can start looking backwards from BC10000-1-1 ......"

"We must be able to find a solution to this material problem."

Lu Yun quickly thought of an executable plan.

But he didn't take action because of this.

Because of this kind of behavior, for Lu Yun, it is no different from hitting the luck.

He needed to stay in BC9965 in every parallel timeline, and he had to stay in each timeline for two or three minutes.

In the extreme case, it may be shortened to less than two minutes.

Even if you take one minute of timeline, it will take an hour for sixty timelines.

What if you don't find that successful timeline for the next 700 hours?

This uncontrollability illustrates that success is not guaranteed.

Therefore, Lu Yun can't use it as the first plan to fully implement it.

In that case, we have to think differently.

"What's the other way?"

Material ......

"Materials?"

Suddenly, a flash of inspiration flashed in Lu Yun's mind.

He came up with a very strange plan.

When this thought appeared, Lu Yun immediately stood up and prepared to perform the operation.

Seeing that Lu Yun was about to leave again, Qin Lijuan seemed to suddenly think of something, and she opened her mouth to stop Lu Yun:

"Wait!"

When Lu Yun heard this, he turned his head to look at Qin Lijuan.

And Qin Lijuan didn't speak yet, didn't ask the question, but heard Lu Yun answer the question she hadn't asked yet:

"Yes, I am indeed Lu Zhenren."

Qin Lijuan was stunned when she heard this, a little surprised.

It felt like I had been seen through.

But when she came back to her senses, she found that Lu Yun had disappeared in front of her.

……

……

Lu Yun stepped into 2022 in this timeline.

The solution he came up with was actually quite simple.

Because Lu Yun fundamentally changed his thinking.

If it's a material that can't be reached with earth technology......

So with the cultivation technology, can it be achieved?

So at this time, he stood at the foot of Lishan again.

"Immortals."

That familiar and majestic voice sounded in Lu Yun's mind again.

"What's the matter?"

The voice was originally very ethereal, but the last two words became more and more real, as if they were all around them.

The way Ying Zheng appeared, Lu Yun was also used to it.

He immediately looked at the figure who was still wearing a black dragon robe, nodded and said:

"Something's true."

"Come with me."

The First Emperor stepped out in one step, which seemed to be just an ordinary step, but when the footsteps fell, he appeared directly beside Lu Yun.

His wide sleeves floated, and he reached out and put his hand on Lu Yun's shoulder.

At the same time, Ying Zheng saw the space-time gate again.

The two stepped into the space-time gate.

Straight to July 19, 9965 in the BC10000-1 timeline.

When he landed, he appeared directly behind Pan Lishan.

Pan Lishan heard footsteps suddenly appear, and he should have thought that Lu Yun was coming.

He turned away.

And his Tong Kong had already contracted a little when he turned around halfway, he subconsciously stared at his eyes, looking at this figure in a black dragon robe, he felt as if his heart had been dragged by someone, and his heart was for a while!

He opened his mouth slightly, and subconsciously reached out and pressed his chest, a little suffocated.

"This ...... This ......"

"This ...... This is......? ”

This impact is indeed a bit excessive for an old man.

But fortunately, Pan Lishan's ability to bear it seems to be good, and he didn't cause any heart disease because he was too excited.

If he could, Lu Yun didn't want to bring Brother Zheng directly.

But the requirements of the material are extraordinary, and it is not as simple as having to withstand high temperatures and pressures......

It requires the binding effect of a strong magnetic field, but also to be able to isolate this high temperature as much as possible, and to withstand the impact of particle beams, plus radiation......

In such a complicated situation, it is useless to just talk about it.

It's better to let Brother Zheng see with his own eyes.

At this time, Pan Lishan of course recognized that the person in front of him was the First Emperor.

However, at this time when he needed to say something, Pan Lishan's mind was blank.

Just when Pan Lishan was pondering, the First Emperor opened his mouth first:

"No formality."

"I came here with the Immortals."

Lu Yun also opened his mouth:

"I'm going to a thermonuclear fusion reactor."

"Let's see how it reacts."

Pan Lishan came back to his senses and nodded a little stiffly.

He could just take the First Emperor and Lu Yun to the reactor like this.

But he didn't.

He looked at the First Emperor and bowed to the First Emperor with modern etiquette.

In his own way, he expressed his highest respect for the emperor who created the great unification.

The encounter spanning two years ago, the collision between modernity and history, made Pan Lishan's mood extremely complicated at this time.

Mixed with excitement, excitement, nervousness, panic......

There are even some who feel that they have no regrets in this life......

At this time, such complex emotions made it even more difficult for him to express such emotions......

Although it was only for a moment, it seemed like a long time had passed for Pan Lishan.

At this time, he subconsciously opened his mouth.

In an extremely trembling voice, he said:

"Your Majesty."

“……”

"Hello."