Under the bright sun, although wearing a sunscreen hat, her pretty face was as red as a fire cloud.

At this moment, when there were only two people left, the girl was no longer as active and bold as before, and became reserved.

"Don't you want to know what kind of ball the teacher is best at? Now it will be possible to tell you the secrets of the Southern Hemisphere. Ye Hua smiled mysteriously, and without waiting for the girl's reaction, he immediately took her hand and walked to a small warehouse on the golf course, which was filled with golf courses, clubs and other equipment warehouses.

It doesn't matter, it's important to be able to tell the secret here.

Lorantis seemed to have guessed the secret of the Southern Hemisphere, and reason told her to hurry up and refuse, but inexplicably couldn't say it.

When she came to the small warehouse, the moment Ye Hua opened the door, she knew that there was still a chance.

Then, still without any words, Lorantis finally entered the house, and the door closed...

…

……

On this day, Lorentis finally learned the secrets of the southern hemisphere, but he also paid the price of blood.

……

"You're a beast!"

"It's better than a beast."

"I'm going to take a leave of absence!"

After a long time, the two of them went out of the golf warehouse again, but Lorentis seemed to be a different person compared to before, indeed, after this day, she was no longer a girl, and at this moment the little bird was attached to Ye Hua's arms, and there was a touch of blush on her pretty face, as if she was drunk and red-faced and had a hint of resentment.

"Accurate!"

"If you miss your homework, you can give me extra make-up lessons privately."

"Privately, yes, you can come to my office at any time."

Ye Hua grabbed her slender waist and left the court, sent her home, and went to Shoreline University, where Oaron Drake contacted him.

The human hibernation program has reached a critical juncture.

……

On the other hand, this time has been in full swing to build the static space, and Dr. Oren Drake led the hibernation project, and has already successfully completed the cryopreservation of chimpanzee test subjects, and the next step is the "last mile" problem.

According to the current technology, if the subject is forcibly awakened, the end result is a large area of cells in the body rupture and die.

……

Hibernation Project Department.

Ye Hua came to the static cabin construction site, located in the -2nd floor construction area of the R&D building, at this moment the construction of the static cabin has entered the end, although Ye Hua is often not present, but all this is carried out in strict accordance with his standards.

In the empty isolation field, Bella Nova stood out among the dozen or so people in the field, wearing a single ponytail with bangs hairstyle, a duckbill hat, a slender willow belt with a tool belt, and a lot of small tools like screwdrivers.

Wearing a thin short-sleeved shirt, sweating and sweating at work, with a faintly visible beautiful vest line in the lower abdomen, in comparison, this Ukrainian girl looks weak, but there is a big difference from the delicate Lorentis who was born in a wealthy European family, Nova is more able to endure hardships.

She is only 15 years old, but Western girls grow up fast, and they are adults at the age of 16.

Bella Nova has an unusual talent in mechanical engineering, and when she recruited the team, she enthusiastically applied and finally made an exception, which was also a kind of exercise for her.

"That's it."

Nova tested the cable with the instrument, and when the instrument showed that it was normal, she closed it and stuck it on the tool's belt, stood up and wiped the sweat from her forehead, and exhaled like an orchid.

Looking at the ring structure with a radius of fifty or sixty meters in front of him, it was actually a small ring, and the isolation field was a circular space, and there was a large ring at the edge, clinging to the barrier.

According to Ye Hua's description, it is the inner and outer fields of the "static cabin".

"When you're tired, take a break."

Suddenly, a voice came, and Bella Nova immediately looked back and saw Ye Hua walking towards with a smile, and others were also greeting him.

"Teacher? There you are! ”

Bella Nova smiled, she has changed a lot recently, from the previous taciturn to more and more cheerful, not afraid of the eyes of the world, especially in front of Ye Hua.

Ye Hua came over with a bottle of water and handed it to her, and Bella Nova took the mineral water with a smile, she was indeed a little thirsty.

After a slight glance at her, there was a trace of dirt on her delicate face, slightly dirty like a cute little flower cat, but her current image reminded people of the harley quinn "Hallie Quinn", and if she tied a double ponytail, it would be even more like three points.

"Teacher, what exactly is the Void Field Generator?"

After taking a sip of water, Bella Nova looked at the vast quarantine field in front of her, which had entered the final stages of closing, and today was an extremely critical day, as the "wake-up" experiment was about to begin.

Ye Hua looked around at the scene in the field.

"Through the two ring-like structures, highly concentrated mass energy is emitted to form a high-energy loop...... To put it bluntly, it is α rays, and although α rays are harmful, don't worry, a blank piece of paper can block it and can't run out. ”

Strong ionization ability is the characteristic of α rays, the human body contains a large amount of water, irradiated by α rays to produce water electrolysis in the body, thereby destroying the cell structure, the damage to people is huge.

However, due to the weak penetration ability of α rays, it is only necessary to pay attention to internal irradiation, and the main way to enter the human body is inhalation and ingestion, and the protection method is to prevent inhalation of contaminated air and consumption of contaminated food, as well as to prevent skin and wounds from being contaminated.

Needless to say, the means of protection in the isolation field are not to mention.

Bella Nova looked at the scene: "Teacher, I found such as the expression of the gravitational field equation of the general theory of relativity "Gab=8πTab", and the formula of the pendulum period "T=2π√(l/g)" and so on...... Why do π often appear in many formulas that have nothing to do with circles? ”

The girl is both talented and inquisitive, Ye Hua naturally replied: "To put it simply, the reason why many mathematical and physical formulas seem to have nothing to do with circles or spheres but contain pi is that these formulas often imply symmetry and periodicity. Whether it's a concrete circle or a sphere, or an abstract sphere or circle, pi is involved in the formula. ”

"And many models will involve geometry, including the current inner and outer field rings, or for example, Gaussian magnetic laws in electromagnetism. For the sake of mathematical simplification, many physics formulations assume radial symmetry, which of course introduces concepts related to spheres, so pi is also included. ”

"Also, a lot of the formulas are cyclical. According to the Fourier series, any function with periodicity can be expanded into an infinite series of sine and cosine functions, and trigonometric functions can be defined by unit circles, so the Fourier expansion must include pi. ”

Bella Nova nodded thoughtfully, the Fourier series of advanced numbers is fine, she thinks it is not particularly difficult, and she will still do the questions if she is serious, but it is still difficult and time-consuming to really master the details.

After all, she is not Ning Jie, and her talent is not reflected in mathematics.

Ye Hua turned his head to look at the girl who was listening to the thoughts, and couldn't help but smile: "From a more familiar perspective, physics and mechanical engineering often involve a common partial differential equation, that is: Poisson equation. A common way to solve such partial differential equations is to use the Green's function, and pi is present in the Green's function, which makes many formulas include pi. ”

"Nova!!"

At this moment, a staff member not far away shouted, and Bella Nova immediately put the water aside: "Sorry teacher, I have to go and see." ”

"Go ahead."

……

Half an hour later, Ye Hua, Bella Nova and the others walked out of the quarantine field, and at the same time, Dr. Oren Drake led the team to the field, and they were all wearing special uniforms that were completely enclosed at ultra-low temperatures.

The final retrieval was completed, and it was confirmed that the entire environment was completely sealed, and Ye Hua, who was standing outside the isolation field, looked at the scene inside through the transparent glass wall.

I saw a researcher in the quarantine field pulling down the first gate.

Eight huge vents opened, the isolation field frantically input liquid nitrogen, the temperature of the entire inner field plummeted, the number of the temperature counter changed extremely fast, and in the blink of an eye, the rapidly falling number was preceded by a plural symbol, indicating that the temperature had dropped below zero degrees Celsius.

The numbers soared again.

"-10 degrees Celsius"

-45 degrees Celsius

-77 degrees Celsius

The walls, floors, and Ye Hua in the field all saw the transparent separation wall in front of him, covered with a layer of white frost at a speed that could be seen with the naked eye.

Eventually, the temperature plummeted to minus 190 degrees Celsius before slowing down, and slowly, after a period of time, the temperature in the field stabilized and finally remained in the minus 196 degrees Celsius range.

The staff in the field opened the second gate, which was an electric gate.

As soon as the electricity is turned on, a steady stream of electrical energy continues to come in, and the number of the watt-hour meter soars wildly, indicating an astonishing energy consumption.

The dozen or so researchers in the room were all looking forward to but nervous, especially Dr. Oren Drake.

Whether or not an unprecedented milestone moment is created depends on success or failure.

……