Chapter 17 Ten centimeters of black wire
Early the next morning, Fang Xu opened the door of the laboratory with a pair of panda eyes.
Looking at the busy researchers in the laboratory, Fang Xu's eyes showed a trace of confusion.
Where is Lv Yongchang?
He hurriedly pulled a researcher who passed by and asked: "Lv... Where is Lv Yongchang?"
The researcher showed a little surprise in his eyes, and then pointed to the depths of the laboratory.
"Professor Lu has arrived a long time ago. When we came, he was busy in the laboratory!"
I don't know since when, Lv Yongchang became "Professor Lu" in the mouths of these researchers.
Fang Xu was too lazy to correct their address.
After all, after seeing Lv Yongchang's skilled and confident scientific research methods, let alone these researchers, even Fang Xu felt a little admiration from the bottom of his heart!
If he didn't know Lv Yongchang's identity, he would probably mistakenly think that Lv Yongchang's true identity was a senior professor!
After retracting his reverie in his heart, Fang Xu hurriedly turned his head and glanced at the wall clock.
6:45.
He was secretly shocked.
Sure enough, everyone's success is not accidental.
Fang Xu sighed in his heart while speeding up his pace to walk deeper into the laboratory.
...
Perhaps because he heard the approaching footsteps, Lv Yongchang moved his eyes away from the device in front of the laboratory table.
Seeing the dark circles on Fang Xu's face, he was stunned.
"What's wrong with you?"
Fang Xu smiled and waved his hand, saying nonchalantly: "Oh! It's okay! I just couldn't sleep last night!"
"Or... you go to rest for a while?" Lv Yongchang said with concern, "Anyway, there is no task today, just test the superconducting properties of carbon nanotubes."
Fang Xu's eyes flashed with excitement, and he directly burst out with swear words: "Rest! My dark circles are caused by this matter, and you still want me to rest?!"
"Where is the wire? Let me see it!"
Seeing Academician Fang's excited look, Lv Yongchang couldn't help laughing.
He turned sideways and let the device on the laboratory table out.
A glass cover with a diameter of 30 cm.
Fang Xu hurriedly took two steps forward and came to the side of the glass cover.
Through the glass cover, he clearly saw a black wire about ten centimeters long connected to two metal probes.
The wire was very thin.
With the naked eye, it was almost as thin as a hair.
Fang Xu stretched out his hand, bent his fingers, and gently tapped the glass cover: "Is it... a vacuum inside?"
Lu Yongchang shook his head and denied: "Of course not, it's just a small clean room now, you don't want to see some dust affecting the experimental results, right?"
But soon, he opened his mouth again and added: "To be precise, it's not a vacuum environment yet."
As he spoke, Lu Yongchang pointed to the vacuuming instrument next to him.
Fang Xu raised his eyebrows slightly.
This sentence contains a lot of information.
"Could it be that... this material can also achieve superconductivity in a vacuum environment?!"
Lv Yongchang reached out and took a piece of A4 paper full of words from the experimental table and handed it to Fang Xu: "According to my calculations, the superconducting wire composed of carbon nanotubes is extremely stable, and the normal operating temperature range is between -50 degrees Celsius and 80 degrees Celsius."
Fang Xu's eyes suddenly lit up, and he quickly asked: "What about the air pressure?"
"Within two standard atmospheres."
"Hiss!"
Hearing Lv Yongchang's answer, Fang Xu took a breath of cold air.
Good guy!
If it is really as Lv Yongchang calculated, this superconducting wire composed of carbon nanotubes can be used in almost any corner of the earth!
Even in the deep sea with extremely high pressure, only a section of pressure-resistant pipeline needs to be installed!
This also means that the power industry in Xiaguo will usher in earth-shaking changes!
"Yongchang... do you know what you have done?"
Thinking of a series of changes that will happen in the future, Fang Xu stood there blankly, muttering to himself.
A smile appeared in the corner of Lv Yongchang's eyes, but he didn't say anything.
He naturally knew what this wire meant!
Although these technologies are somewhat advanced for the current Xia country,... it is far from enough to deal with future disasters!
After admiring the carbon nanotube wire on the experimental table, Fang Xu said solemnly: "Start the test!"
...
Knowing that the first test of the room-temperature superconducting coil was about to begin, all the researchers in the laboratory put down their unfinished scientific research tasks and gathered around Lv Yongchang.
This is a chance to witness history!
No one would want to miss this opportunity!
Lv Yongchang swallowed slightly, stretched out his hand carefully, and connected the metal probes at both ends of the wire to the testing instrument.
Although he was very confident in the materials he made, but...
Who can say for sure about materials science?
Perhaps there was a little accident in the manufacturing process, causing the inclination of the carbon nanotube to change by 1°, or some other reason...
It can be said that as long as there is a slight mistake, the manufacturing of this room-temperature superconducting material will fail!
While he was thinking about all sorts of things in his mind, he turned on the switch of the test instrument.
Start powering on!
A number appeared on the screen of the test instrument.
Resistance value: 0 Ω!
Success!
A hint of excitement flashed in Lv Yongchang's eyes.
"Increase the current a little more!"
Fang Xu's excited voice came from the side.
Lv Yongchang immediately turned the knob and slowly increased the current.
When they saw the resistance value on the instrument screen without any fluctuation, all the researchers in the laboratory exclaimed softly.
Unlike the researchers around him, Lv Yongchang's expression was still very solemn.
The test is not over yet.
He still needs to test the performance of this material in a low-pressure environment!
Lv Yongchang winked at Fang Xu on the side.
Fang Xu nodded gently and turned on the vacuum pump on the side.
With a low humming sound, the air in the glass cover was gradually sucked out.
Seeing the value on the barometer slowly decrease, even Lv Yongchang was sweating.
You know, superconducting materials react extremely violently to environmental changes!
In the past, superconducting materials, once the temperature or pressure changes slightly, will directly lead to the disappearance of the superconducting effect!
Under the action of this strong current, once the superconducting effect of the wire disappears, even if the resistance value is very small, it will instantly generate extremely strong heat.
The consequence... is naturally to fuse the only room-temperature superconducting wire in the world!
A few dozen seconds later.
Looking at the calm resistance curve on the screen of the test instrument, Lv Yongchang finally showed a bright smile on his face.
He gently wiped the sweat from his forehead, raised his right hand high, and shouted loudly: "Success!"
"We succeeded!"
Fang Xu on the side excitedly turned off the instruments one by one, rushed to Lv Yongchang excitedly, and patted him on the shoulder vigorously: "Good job!"
"We have the room-temperature superconducting technology, Academician Fang, we should prepare for the transformation of the stellarator!" Lv Yongchang quickly pulled himself out of the joy of success and said in a deep voice.
Fang Xu nodded excitedly.
"I will notify the staff of the laboratory right now, and start the transformation of the stellarator this afternoon!"
