Chapter 257: System reward! Carbon nanotubes! Precursor technology for the space elevator!

"What?"

Zhang Wen thought, shocked.

Good heavens.

This is the system?

The system hasn't appeared for such a long time.

Zhang Wen had even forgotten that he was someone who still had a system.

Zhang Wen hurriedly said to Zhu Xinghan, "I still have some business to attend to, I'll be leaving first."

"Alright!"

Afterwards, Zhang Wen immediately turned and walked out the door.

After returning to the Kunpeng.

Zhang Wen immediately checked the system's messages.

"The system has detected that your Qingtian Factory has grown into a world-leading industrial group."

"Now issuing your reward."

"One lottery chance. Spin twice, and you may choose one of the rewards."

"Prestige points."

Zhang Wen was almost moved to tears seeing this.

Good heavens.

How long has it been.

He had finally seen the system issue a reward.

If it hadn't appeared.

Zhang Wen would have had to start interstellar colonization on his own.

"Hurry up and click on the reward!"

"I want to claim the reward!"

"Quick, quick, quick, I can't wait!"

Zhang Wen said hurriedly.

Immediately, a spinning wheel appeared in front of Zhang Wen.

On it were design blueprints for a galaxy-level spaceship.

Manufacturing methods for various materials.

And various technologies.

Of course, even after so many years of absence, the system was still the same as before.

It only had various technologies.

But no finished products.

But Zhang Wen couldn't care about that now.

He clicked directly to start the draw.

The wheel spun rapidly.

Zhang Wen watched the wheel as it gradually slowed to a stop.

The first pointer pointed at the galaxy-level spaceship.

Then, the second pointer slowly pointed at anti-corrosion carbon nanotube technology.

These two rewards.

"You may now choose one of the two options to obtain."

"Please choose which one to obtain?"

Zhang Wen looked at these two technologies and immediately fell into silence.

Damn it.

One is a blueprint for a galaxy-level spaceship, the other is a manufacturing method for anti-corrosion carbon nanotube material.

It's so hard to choose.

The galaxy-level spaceship doesn't refer to a planetary system like the Earth-Moon system, but a stellar system like the Solar System.

With this ship.

Zhang Wen could say he could go anywhere in the Solar System.

But this ship has no way to break the speed of light.

This limits the range of this ship.

After all, the real Solar System must include the existence of the Oort Cloud.

The boundary of the Solar System is a full 3.2 light-years away from the sun; of course, if measured in kilometers.

That would be kilometers, which is 30.27 trillion kilometers, a figure that could make anyone despair.

Voyager 1 from the last century has only just flown past Pluto; even if it flies at a speed of 17 kilometers per second, it would take at least 30,000 years to fly out of the range of the Solar System.

Then there is the anti-corrosion carbon nanotube.

This material also belongs to the heaven-defying level of materials.

Although it can now be produced in small quantities in laboratories.

But after testing.

The tensile strength of carbon nanotubes is 50 times that of the world's strongest high-strength steel.

At the same time, this material also possesses super heaven-defying strength and toughness.

It is simply a perfect material.

But this thing has a serious problem.

That is, since this thing is called a carbon nanotube, it is very easily corroded by oxygen atoms in the air.

This is also the biggest problem with carbon nanotubes.

Once corrosion occurs.

Its heaven-defying properties will be lost.

It degrades extremely severely.

Moreover, if a part is corroded, it means other places are not far behind.

Just like cockroaches in the south.

When you find one.

Perhaps the whole house already has them.

So if you want to replace it, you have to replace it all.

If you don't replace it, there is a high probability of an accident.

But now.

This kind of anti-corrosion carbon nanotube can be said to have directly solved the biggest flaw of carbon nanotubes.

Products made with this production process.

Can be placed directly in the air.

No need to worry about oxygen corrosion.

When these two things were placed in front of Zhang Wen.

Zhang Wen licked his lips; he really found it hard to choose.

After considering for a while.

Zhang Wen still chose the anti-corrosion carbon nanotubes.

After all, the materials given by the system can all be directly mass-produced.

They are not things that can only be produced in small quantities in a laboratory.

The reason for not choosing the galaxy-level spaceship.

The reason is also very simple.

Zhang Wen can do better himself.

That's right.

The problem currently plaguing the Kunpeng is mainly insufficient supplies.

If the Kunpeng is built larger.

Then the Kunpeng can carry more supplies.

In a vacuum, the decay of acceleration is very, very small, as long as the energy supply is sufficient.

The Hall thruster can work continuously.

Accelerating all the time until the speed is sufficient.

In this case.

Zhang Wen can also sit on the Kunpeng and roam the Solar System.

After all, the Kunpeng's energy core is a nuclear fission reactor; at least in Zhang Wen's lifetime.

The Kunpeng's energy is endless for Zhang Wen.

Accompanied by constant acceleration, the Kunpeng can at least fly to the range of the Oort Cloud.

Although the galaxy-level spaceship would be faster.

But Zhang Wen can achieve the same effect through various means.

A flash of light passed.

The entire manufacturing method for anti-corrosion carbon nanotube material was already in Zhang Wen's mind.

Zhang Wen waved his hand.

The system panel dissipated from Zhang Wen's field of vision.

Zhang Wen couldn't help but feel a bit emotional.

When he first obtained the system.

Zhang Wen looked at every reward, every single one, every item.

He was incredibly envious.

He wanted them so much.

But unfortunately, Zhang Wen either couldn't draw them or couldn't afford them.

But decades have passed.

Zhang Wen was surprised to find that the things he manufactured.

Could even rival the system's rewards.

At this moment.

Zhang Wen sat down with mixed feelings.

Recalling the manufacturing method of anti-corrosion carbon nanotubes in his mind.

Then, Zhang Wen discovered.

He couldn't build it.

That's right.

Zhang Wen couldn't build it right now.

It wasn't that Zhang Wen had no money, nor was it that Zhang Wen lacked technology.

It was simply because the consumption of this material was truly too great.

Zhang Wen had calculated it.

Suppose one wanted to manufacture a carbon nanotube 90,000 meters long.

Even if all of Dongda's electricity were poured into it, it wouldn't be enough.

You have to know.

In terms of electricity, no country dares to claim to be number one if Dongda admits to being number two.

All kinds of technical reserves, the world's number one power generation capacity.

High-voltage and ultra-high-voltage power transmission capabilities.

Like blocks of foundation stones, they established the fact that Dongda's electricity is number one in the world.

Even Dongda isn't enough, so one can imagine how power-hungry it is.

Zhang Wen had just sighed.

But suddenly discovered.

Wait.

This thing.

Seems to have another use.

Zhang Wen suddenly thought of a scene.

A rocket launcher shooting up into the sky.

But not flying freely, but along a rope, flying higher and higher.

Zhang Wen remembered this scene.

It was a movie he watched in his past life.

And this rope was a carbon nanotube.

This device, Zhang Wen remembered, seemed to be called.

Space elevator! ===== CHAPTER 258 =====