Chapter 147 Kilometer-scale Carbon Nanotubes

"Professor, just in case..."

Wei Rong looked at the carbon nanotubes in front of him with an anxious expression, and said softly: "What if this sample also..."

"stop!"

Lu Yongchang interrupted Wei Rong angrily: "There is no such thing as a chance!"

"I don't believe our luck can be so bad. There is a 3.1% chance that we will get hit!"

Wei Rong smiled bitterly, subconsciously stretched out his hand to touch the tip of his nose, and turned his head to look aside.

"Xiao Wang, are the test results out?"

The researcher known as Xiao Wang had a somewhat anxious face: "Academician Wei, it will be fine soon, just wait!"

"..."

Wei Rong withdrew his gaze, and his lips that he pursed forcefully turned a little white.

The waiting time is excruciating.

After all, in a sense, this piece of carbon nanotube is already the hope of the entire laboratory!

"The results are out!"

"1590Gpa!"

Xiao Wang's face was full of excitement, he raised his arms and shouted: "Professor Lu, we succeeded!"

The moment they heard the shouting, Lu Yongchang and Wei Rong stood up from their chairs immediately!

In order to avoid errors, the two conducted several tests again.

Fortunately, this piece of multi-walled carbon nanotube lived up to the expectations of the entire laboratory.

"1590Gpa..." Wei Rong looked at the test results in front of him blankly and murmured, "Unbelievable..."

As for Lu Yongchang, he breathed a sigh of relief.

It can be considered a success.

In just a few months, the entire laboratory produced more than 6,000 samples.

With such a huge workload, even if there are many scientific researchers in the laboratory, the tasks assigned to everyone are still very heavy.

Looking at the bright smiles on the faces of the scientific researchers around him, a faint smile appeared at the corner of Lu Yongchang's mouth.

But soon, he pulled himself away from the joy of success.

"Academician Wei, it's not time to celebrate yet!"

Lu Yongchang reminded softly: "Next step, we need to solve the problem of industrial preparation of this multi-walled carbon nanotube."

Wei Rong looked startled, and the expression on his face suddenly became serious.

"Professor, how many specifications of carbon nanotubes do we need to prepare?"

After this incident, Wei Rong completely abandoned his old ideas.

At least, Lu Yongchang’s scientific research intuition is trustworthy!

Lu Yongchang pondered for a moment and said in a deep voice: "It must be at least a thousand meters."

"Also, the industrial preparation plan is left to you!"

With that said, he patted Wei Rong's shoulder meaningfully.

Wei Rong: "???"

"ah?"

Although he had long heard that Professor Lu had the habit of being a "hands-off shopkeeper", he never expected that this scene would happen so quickly!

"Ah what?" Lu Yongchang curled his lips and said angrily, "There are still many details of the space elevator that have not been perfected. I don't have so much time to solve this cable problem."

Wei Rong: "..."

"Okay, okay..."

Looking at the expression on Wei Rong's face, Lu Yongchang nodded with satisfaction.

Although it was a bit uglier, he could still see the excitement in his smile!

I guess Academician Wei is also looking forward to this task!

While thinking about it, Lu Yongchang turned and walked towards the door of the Carbon Nano Laboratory.

…

After leaving the task of industrial preparation of thousand-meter carbon nanotubes to Wei Rong, Lu Yongchang returned to the office.

With the cable material problem solved, another problem arose.

Space elevator construction issues.

In the imagination, the ideal construction plan of the space elevator is to build it from the top down.

To put it simply, the prepared cable is transported to an altitude of 91,000 kilometers above the earth's surface, and then the cable is slowly returned to the ground.

The cables were then fixed to the foundation and the rest of the construction work began.

Because of the existence of cables, the simple space elevator can already operate at this time.

The problem of material transportation has also been solved.

It sounds like everything is going smoothly.

But this process is simple to say but very difficult to do.

If nothing else, the weight of the 91,000 kilometers of cable is a big problem.

Even though the density of carbon nanotubes is only one-sixth that of steel.

According to Zero's calculations, in order to ensure the stability of the spaceport, the diameter of the entire cable will reach an astonishing five meters!

Moreover, in order to increase the tensile strength of the cable, they also need to add a large number of long nails during the weaving process.

As a result, with a diameter of 5 meters and a length of 91,000 kilometers, the weight of this cable is beyond what current aircraft can bear!

As for making a small spaceport first, and then making cables on it...

This is even more unfeasible!

This is completely putting the cart before the horse!

If Lu Yongchang can quickly transport these materials to space now, then why does he build a space elevator?

So... just like that, the space elevator manufacturing plan fell into an endless loop.

…

Lu Yongchang frowned and sat at his desk. The pen in his hand was unconsciously scribbling on the A4 paper in front of him, making irregular rustling sounds.

Su Yutong, who was immersed in studying, twitched his ears slightly and looked up in the direction of Lu Yongchang.

Seeing Lu Yongchang's appearance, Su Yutong's eyes flashed with surprise.

After such a long time, she had never seen Lv Yongchang behave like this!

After thinking for a moment, she asked cautiously: "Professor, have you encountered any problems?"

The movement of the pen in Lv Yongchang's hand suddenly stopped, and then a long sigh came.

"Yes, I encountered a big problem..."

Lv Yongchang turned his head to look at Su Yutong beside him, and happened to meet her puzzled eyes.

His heart moved slightly, and he briefly described the problem he encountered.

At the end, a little hidden expectation flashed in his eyes: "Do you understand? How do you think it should be solved?"

Su Yutong nodded thoughtfully.

"Professor, since the small spaceport plan is not feasible, why can't we make cables on Xuannv II?"

Lv Yongchang was slightly stunned, and subconsciously refuted.

"Are you kidding?"

"Xuan Nu No. 2 is too big to handle the task of manufacturing cables, and its weight is not enough to serve as a counterweight for the space elevator."

"As for the larger space plane...it can only be built in the spaceport."

Su Yutong chuckled: "If one is not enough, how about ten? Or, twenty?"

Lv Yongchang was about to shake his head and refute, but a flash of inspiration flashed through his mind!

He was stuck in a dead end!

Lv Yongchang's eyes burst into an excited light, he turned around suddenly, sat back at his desk, and quickly wrote on the A4 paper in front of him with a pen in his hand.

Seeing this scene, Su Yutong's eyes flashed a smile.

The next second, she buried her head in the pile of information in front of her again.

PS. On June 1st, I went out to eat hot pot with my girlfriend, and there are only two updates...QAQ