Chapter 17 Ten Centimeters of Black Wire
Early the next morning, Fang Xu pushed open 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 Lu Yongchang?
He quickly pulled a researcher who was passing by and asked, "Where is Lv... Lv Yongchang?"
The researcher showed some surprise in his eyes, and then pointed deep into the laboratory.
"Professor Lu has already arrived. He was busy in the laboratory when we arrived!"
I don't know when it started, but Lu Yongchang became "Professor Lu" in the mouths of these researchers.
Fang Xu was too lazy to correct the way they addressed him.
After all, after seeing Lu Yongchang's skilled and confident scientific research methods, not to mention these researchers, even Fang Xu felt a little admiration from the bottom of his heart!
If he didn't know Lu Yongchang's identity, he would probably have mistakenly believed that Lu Yongchang's real identity was a senior professor!
After withdrawing his thoughts, Fang Xu quickly 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 and quickened his pace towards the depths of the laboratory.
…
Perhaps because he heard the approaching footsteps, Lu Yongchang shifted his gaze away from the device in front of the experimental table.
Seeing the dark circles under Fang Xu's eyes, he was stunned.
"What's wrong with you?"
Fang Xu smiled and waved his hands, saying nonchalantly: "Oh! It's okay! I just couldn't sleep last night!"
"How about... you take a rest?" Lu 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 cursed: "Rest! I got these dark circles because of this, and you still want me to rest?!"
"Where is the wire? Let me see it!"
Seeing Academician Fang's excitement, Lu Yongchang couldn't help but laugh.
He turned sideways and made way for the device on the laboratory table.
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 is very thin.
With the naked eye, it is about the same thickness as a hair.
Fang Xu stretched out his hand, bent his fingers, and tapped the glass cover gently: "Is it... a vacuum in here?"
Lu Yongchang shook his head and denied it: "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 added again: "To be precise, it is not a vacuum environment yet."
As he spoke, Lu Yongchang pointed to the vacuum equipment 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 covered with words from the experimental table and handed it to Fang Xu: "According to my calculations, the superconducting wires made of carbon nanotubes are 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 Lu Yongchang's answer, Fang Xu took a deep breath.
Good job!
If it is true as Lu Yongchang calculated, the superconducting wires made of carbon nanotubes can be used in almost every corner of the earth!
Even in the deep sea with extremely high pressure, you only need to install a section of pressure-resistant pipe!
This also means that Xia Country's power industry will undergo earth-shaking changes!
"Yongchang... do you know what you have done?"
Thinking of the series of changes that would happen in the future, Fang Xu stood there blankly, muttering to himself.
A smile appeared in the corner of Lu 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 Kingdom,... they are far from enough to cope with future disasters!
After admiring the carbon nanotube wires on the experimental table, Fang Xu said solemnly: "Let's start the test!"
…
Upon learning 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 Lu Yongchang.
This is your chance to witness history!
No one would want to miss this opportunity!
Lu 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 is confident in the materials he made, but...
Who can be sure about materials science?
Maybe there was an accident in the manufacturing process, causing the inclination of the carbon nanotubes to change by 1°, or maybe there was some other reason...
It can be said that as long as there is the slightest mistake, the manufacturing of this room-temperature superconducting material will fail!
While he was thinking wildly in his mind, he turned on the switch of the testing instrument.
Start powering up!
A number appeared on the test instrument's screen.
Resistance value: 0 Ω!
Success!
A hint of excitement flashed in Lu Yongchang's eyes.
"Increase the current a bit more!"
Fang Xu's excited voice came from the side.
Lu 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 let out a slight exclamation.
Unlike the researchers around him, Lu Yongchang's expression was still very solemn.
The test is not over yet.
He also needs to test how this material performs in low-pressure environments!
Lu Yongchang winked at Fang Xu who was standing beside him.
Fang Xu nodded slightly and turned on the vacuum equipment beside him.
With a low humming sound, the air in the glass cover was gradually sucked out.
Seeing the value on the barometer slowly decreasing, even Lu Yongchang broke out in a cold sweat.
You know, superconducting materials react extremely violently to environmental changes!
In the past, if the temperature or pressure of superconducting materials changed slightly, the superconducting effect would disappear directly!
Under the action of this strong current, once the superconducting effect of the wire disappears, extremely strong heat will be generated instantly even if the resistance value is very small.
The consequence... is naturally to melt the only room-temperature superconducting wire in the world!
After dozens of seconds.
Looking at the calm resistance curve on the screen of the testing instrument, Lu Yongchang finally broke into a bright smile.
He gently wiped the sweat from his forehead, raised his right hand high, and shouted loudly: "Success!"
"We did it!"
Fang Xu, who was standing by, excitedly turned off the instruments one by one, rushed to Lu Yongchang excitedly, and patted him on the shoulder vigorously: "Good job!"
"Now that we have the room-temperature superconducting technology, Academician Fang, we should prepare for the transformation of the stellarator!" Lu Yongchang quickly pulled himself out of the joy of success and said in a deep voice.
Fang Xu nodded excitedly.
"I will go and inform the laboratory staff to start the transformation of the stellarator this afternoon!"