"What did you two find?" Ning Wanfei asked.

"What did my sister find?" Ning Wanjia took two strip objects from Ning Wanfei's hand.

A black carbon rod and a grayish-white tin rod are commonly used in chemical experiments.

"Black and White Evils." Liang Yuan smiled and took out the two bottles in the tool kit.

"Carb and...magnesium diboride?"

"Xiaoyuan, what is magnesium diboride used for?" Ning Wanfei asked curiously.

"I don't know, but I vaguely remember a teacher mentioned that this thing was used to match the color in fireworks. Magnesium is bright silver in fireworks, and boron seems to be green." Liang Yuan said with some uncertainty.

"There is one left. Which material should we choose? Oh, it's so dazzling." Ning Wanjia said silly at the glass bottles that were full of eyes.

"Let's go look for mercury separately. It is at least the first substance found to be superconductive in human history. Writing it into the project report can add some heavy historical atmosphere." Liang Yuan said with a smile.

The two girls nodded, and the three of them swayed in the room for another five or six minutes, and finally prepared all five comparison materials.

When leaving the experimental building, the staff at the door looked at Liang Yuan’s tool kit with some suspicion. Fortunately, the one with the seal on the hospital: Ask all units to assist Liang Yuan, Ning Wanjia and Ning Wanfei to fully prepare for the Youth Science and Technology Innovation Competition, which played its due role.

Without inspection, Liang Yuan successfully brought five comparison materials out of the experimental building.

It can be considered as a waste of trouble, otherwise after the matter is detonated, the manager of the experimental building will most likely be dragged into the vortex, Liang Yuan thought to himself.

It was already past two o'clock in the afternoon when the three of them returned to the superconducting center. Ning Wanjia took out three bottles of mineral water from the freezer in the corner and handed it to Liang Yuan and Ning Wanfei. After a while of rest, the three began to conduct a comparison experiment.

Except for magnesium diboride, sodium hydroxide, carbon, and tin, Liang Yuan didn't know at all. In order to avoid the first one, he used magnesium diboride for experimental comparison, Liang Yuan proposed to practice his hands with mercury first.

The two girls were also excited, curious and nervous about the verification comparison materials, and praised Liang Yuan's suggestions.

The superconductivity of mercury is extremely easy to detect, and it is connected to a liquid helium refrigeration cycle refrigerator. When the temperature inside the thermal insulation equipment drops to 4.2k, the resistance of mercury suddenly disappears.

Liang Yuan followed the process of testing the conductivity of mercury and repeated this work that countless previous people had verified, while the two girls focused on the test data in the test report.

At 14:37, the refrigeration equipment was running normally. The comparison material mercury cooled to 79k. The actual resistance...

14:43 points. Comparison of mercury material, temperature 23k, actual measured resistance...

14:52 points. Comparative material mercury, temperature 4.1k, and the measured resistance is zero.

Liang Yuan talked about the experimental data observed in real time word by word.

"Okay, Xiaoyuan, we've all recorded it." Ning Wanfei shook the folder in her hand.

"There are four more, and the electromagnetic cannons are completely finished after testing them." Ning Wanjia said excitedly.

"Xiaoyuan, do you think our electromagnetic gun can win the award?"

"If the one who could have broken the walls in the past could have probably lost 10,000 yuan pocket money. Thank you now, this one can make 3,000 yuan." Liang Yuan said with a smile.

Liang Yuan knew very well that although superconducting seems extremely magical to ordinary people, in the eyes of the academicians and judges of the Qingke Competition, it is definitely not as good as the form processing system developed by Wang Mengmeng.

If Ning Wanjia's suggestion is adopted, the electromagnetic gun will be changed to the Earth orbit propulsion device, and then the superconducting coil drive will be turned into a reconnected orbit. After such a major change, there is still a glimmer of creativity to win the highest award.

The current electromagnetic cannon has been dismantled by Liang Yuan, and it is soft and does not even have the visual shock of breaking through coins. If it can be awarded the third prize, it is probably because of the extremely difficult superconducting coil.

"Xiaoyuan, a big liar, also said that he would shock those old men in Peking." Ning Wanjia gave Liang Yuan a blank look.

"It's a good ending to have this kind of ending. It only destroyed a wall and a cabinet, and then successfully made the thing. Xiaoyuan's invention is second only to the air conditioner fan." Ning Wanfei said with a giggle.

"You two are already rich women, don't be so rich, okay?" Liang Yuan rubbed the fair cheeks of the girl beside him.

"What will we test next?" Liang Yuan asked, pointing to the remaining four materials.

After stretching his curved waist vigorously, Ning Wanjia yawned cutely and said, "Take the two powders first while you are in a while. If you get sleepy, it will be easy to fail in filling."

He picked up the white sodium hydroxide casually and walked towards the device used to prepare yttrium barium copper oxygen high-temperature superconductor.

He picked three temperatures and normal pressures of 200,400,600, and two pressures of double atmospheric pressure as parameters. Ning Wanjia first filled the sodium hydroxide powder into a silver tube to form hot rolling, and then cooled the finished product naturally and threw it into a low-temperature thermostat to measure the resistance.

Sodium hydroxide can conduct electricity in a molten state or when it is broken down by tens of thousands of volts of high voltage. Theoretically, substances that can conduct electricity may have superconductivity. For example, when the pressure reaches a certain level, almost all substances are superconductive.

However, in terms of the equipment used by the three people and the parameters they selected, it is still quite far away from high-temperature and high-pressure treatment. As a result, the three people struggled for nearly two hours and came to the test conclusion that sodium hydroxide did not have superconductivity at low temperatures at normal pressure or twice the atmospheric pressure.

"After finishing this powder, the remaining two will be much easier." Ning Wanjia shook the gray-black magnesium diboride in her hand.

"It's still a solid material to save trouble. Put it directly into the thermostat and pick a few parameters to write the conclusion." Ning Wanfei bit the end of the pen in her hand with her teeth, looking at the remaining carbon rods and tin bars on the laboratory bench.

Liang Yuan didn't say anything, but just smiled at the two girls, afraid that emotional fluctuations would make his voice distorted and that the sensitive Ning Wanjia would notice something.

The girl slowly injected the magnesium diboride powder into the container held by the robot, closed the material door of the equipment and began to select parameters.

"It's better to raise the temperature a little bit. Sister, the temperature parameters of this heat treatment are selected as 300,500,800 degrees Celsius, and the pressure remains the same as before." Ning Wanjia said to Ning Wanfei at the temperature indicator on the equipment.

"Okay." Ning Wanfei nodded.

After a while, the hot-rolled magnesium diboride wire that was chosen to fill at 300 degrees Celsius was officially released and was thrown on the material plate by Ning Wanjia to cool naturally.

Ning Wanjia turned around and continued to prepare the second magnesium diboride wire at 600 degrees Celsius, but Liang Yuan couldn't help but circle the shiny superconducting wire for a few times.

A few minutes later, this discovery that shocked the whole world was about to be born. Liang Yuan was not sure what kind of storm he would face when he took this step.

Sometimes, the pressure to dig out the corners of history is quite high. Someone thought with emotion.

"The second one is good." Ning Wanjia put the magnesium diboride wire prepared at 600 degrees Celsius into another tray.

"I'll do the experiment. It's Xiaoyuan's turn to record it this time." Ning Wanjia handed the test record to Liang Yuan with a smile.

After taking the test record, Liang Yuan took a deep breath quietly and gently patted the back of the girl's hand. He said, "Be careful when replenishing liquid helium for the circulation freezer. Don't splash it on your hands."

"Yeah." Ning Wanjia responded heavily.

At 18:33, the refrigeration equipment was operating normally, and the comparison material magnesium diboride cooled to 75k. The actual resistance was measured...

18:41 points, compare material magnesium diboride, temperature 58k, actual measured resistance...

At 18:49, the comparison material is magnesium diboride, the temperature is 46k, the actual measured resistance...

Liang Yuan and Ning Wanfei lowered their heads and focused on recording the various data Ning Wanjia said on the experimental record. In the slightly empty superconducting laboratory, only the girl's crisp and gentle voice floated in the space.

There is still 7k, and a historic moment is coming. Liang Yuan took a deep breath as he looked at the temperature data of 44k that he had just written on the test record.

Ning Wanjia's crisp voice rang on time exactly.

"18:57 minutes, the comparison material magnesium diboride, temperature 35k, actual measured resistance..... zero."

After Ning Wanjia blurted out the word "zero", she was stunned. Not only Ning Wanjia, but even Liang Yuan, who was prepared in his heart, had a slight dazed expression.

Liang Yuan looked up and saw that the two girls at this time had small mouths slightly opened, their almond eyes were round, and their expressions were as stagnant as they were.

The pen in Ning Wanfei's hand has penetrated half of the test records, and the pen tip that is too strong is twisted at a very strange angle.

It seemed as long as a century, and it seemed like a moment, two screams rose almost at the same time.

"Oh my God, Xiaoyuan, what did we do??? What did we discover!!!"

"If Dean Zhao didn't lie to us, I bet that no one has ever discovered this thing, never."

Accompanied by the sound of the chair turning over, two slender figures crashed into Liang Yuan's arms in no particular order.

After more than a month of learning and popular science, the two girls who had established a comprehensive understanding of superconducting materials have realized that just a few dozen seconds ago, a brand new superconducting material became a reality in front of the three people.

The critical transition temperature of 35k has never appeared in all known test records on this planet.

After three minutes, the two girls who were extremely excited hugged Liang Yuan's neck tightly and kept repeating "Xiaoyuan, what did we find?"

Not long ago, CCTV News Broadcast just reported the Republic's highest scientific honor in 1989, the National Natural Science First Prize, which will be awarded to Zhao Zhongxian's scientific research team who discovered high-temperature superconductors in liquid nitrogen temperature zone in 1988.

If you open the list of first prize winners of the Republic's National Natural Science Prize in previous years, you will see a series of well-known names, Qian Xuesen, Li Siguang, Hua Luogeng, Wang Ganchang, Chen Jingrun..., it can be said that the stars shine and the big bulls are rampant.

All the winners of the first prize in the National Natural Science Prize are the leaders and backbone of the Republic in related fields.

In many years after the founding of the Republic, if there were no sufficient scientific research results, the first prize of the Republic's National Science Award would rather be vacant. This shows how important a brand new superconducting material is to the scientific community.
Chapter completed!