This was the first formal contact between Zhao Zhongyao and Yu Hua. To be honest, he could not imagine performing a large number of rigorous and demanding mathematical calculations through mental arithmetic.
No paper or pen is needed, and mathematical operations can be performed through pure thinking. Is this possible for humans?
You must know that this calculation is not the four arithmetic operations of addition, subtraction, multiplication and division, but the calculation of astronomical data through differential equations and integral equations.
The entire calculation process must be rigorous and accurate, and no errors are allowed.
Whether it is the calculation formula or the result parameters, any error will lead to errors in the final data.
Zhao Zhongyao's main field of study is nuclear physics research, his mathematical thinking and calculation ability are barely adequate, and he does not possess Yu Hua's extremely terrifying mental arithmetic ability.
Darling, is this the ability that counts as a top student in the academic department?
"Yu Sheng, please calculate this parameter." Looking at the humble and courteous Yu Hua, Zhao Zhongyao suddenly realized something. He took a deep breath, calmed down, and then used a brush to erase the question on the blackboard, and then used chalk to write out a question.
A set of physical parameters and mathematical formulas, with a hint of expectation in his eyes.
There are no questions on the blackboard, only a set of parameters about atoms and electrons, including mathematical formulas. There are no review questions, just calculations.
The only problem is that the calculation amount is extremely large.
Facing Professor Zhao Zhongyao's test, Yu Hua looked natural and unfazed, staring at the parameters and mathematical formulas on the blackboard. After obtaining enough data, the thinking computer in his mind entered operation mode.
In an instant, his whole personality changed again, revealing a sense of absolute rationality.
When the thinking computer is used, all Yu Hua's emotions and humanity will temporarily disappear, and the spirit and attention will be highly concentrated, providing the best environment for the operation of the thinking computer.
The higher the computing speed, the more Yuhua looks like a real machine.
Yu Hua didn't think there was anything wrong with this.
Groups of data in his mind kept beating and changing. Yu Hua's academic level and knowledge reserve were comparable to those of a mathematician, allowing him to have no obstacles in the entire calculation process. Although he did not understand the meaning and nature of these parameters, there was no problem in the calculation.
,
Quick, fast.
"Sir, this is the final result. Do you need to write down the detailed calculation steps?" Five minutes later, Yu Hua completed the entire calculation process, picked up the chalk in his right hand and gave the data, and asked Zhao Zhongyao.
"No need. If I hadn't seen it with my own eyes, I really wouldn't believe that people's mental arithmetic ability can reach this level."
Zhao Zhongyao shook his head gently, his words full of surprise and emotion. Even though he was prepared in his heart, he was still shocked by Yu Hua's mental arithmetic ability.
Shocking.
A shock that goes deep into your heart.
"Sir, you are overly complimentary." Yu Hua said modestly.
"Yu Sheng, are you interested in being my assistant?" Zhao Zhongyao took a deep breath, looked at Yu Hua in front of him, and without hesitation sent out a formal invitation from the school professor. After the second calculation test, he was already keenly aware of Yu Hua's
The scientific research value of mental arithmetic ability.
According to Yu Hua's current performance, it is no exaggeration to say that this is a walking humanoid computer. Wherever calculations are required, Yu Hua can play an extremely important role.
Given data and corresponding formulas, the results can be obtained after a period of time. Yu Hua's mental arithmetic ability is completely the top assistant that countless scientists dream of.
No, it’s the lover of my dreams!
In the blink of an eye, Yu Hua became the star of Zhao Zhongyao's eyes, and this general elective nuclear physics course also became a talent market.
As for whether it is formal or not, whether it is reasonable or not...
Zhao Zhongyao said it was not important, since he and Yu Hua were the only two people in the classroom anyway.
As an assistant?
Yu Hua, who unexpectedly received the second offer in his life, was startled for a moment and immediately understood what Professor Zhao Zhongyao meant. He was interested in his computing ability.
Indeed, for a nuclear physicist of Zhao Zhongyao's level, his top-level mathematical calculation ability is of great value, as he can help others calculate and process data, eliminating the tedious and laborious steps in the middle.
In fact, not only nuclear physicists, but all scientific research activities require a lot of mathematical calculations.
Yu Hua can understand Professor Zhao's needs, and this formal invitation also proves his worth, but...
Do you need this offer?
The whole person frowned slightly, lost in thought.
Looking at the problem from a student's perspective, as a freshman, being recognized and formally invited by the school's professors can already be called an explosive take-off. You must know that professor assistant positions are often at the core level, and people who are not the most trusted by the professor cannot be assistants.
As long as nothing unexpected happens, Yu Hua will work with Zhao Zhongyao and will be able to stay in Tsinghua to teach when he graduates.
In addition, you can get the best of both worlds by studying under Zhao Zhongyao's master's program.
The future is bright.
However, Yu Hua is not an ordinary freshman. The oxygen blowing furnace and electroslag remelting technology are still waiting for him to conquer. The prime number theorem and Goldbach's conjecture in mathematics still need to be dealt with. "Introduction to Military and Civilian Guidance"
I haven't finished writing yet and have almost no free time.
The most important thing is that he is going to study in the United States.
"Professor, I am grateful for your kindness. However, I am planning to apply for the Geng Geng Scholarship to study in the United States. Even if I agree to be your assistant, I will not be able to stay for long." Yu Hua weighed and thought about it, but he couldn't help it.
Instead of shaking his head, he chose to decline the formal invitation from Zhao Zhongyao.
"I see……"
Zhao Zhongyao was a little disappointed when he heard this. He thought for a while, looked at Yu Hua, and asked: "For the rest of your life, which school in the United States are you going to attend?"
"I will probably go to Princeton to study for a master's degree and a Ph.D. in mathematics, and then go to the California Institute of Technology to study for a Ph.D. in nuclear physics and aeronautics." After hearing this, Yu Hua did not hide his future plans and said truthfully.
Go to Princeton first and then to Caltech. This is the main planned route for studying abroad.
Math determines the upper limit,
Nuclear physics determines the future,
Aeronautics is now.
The world after World War II and World War II was entirely centered on the struggle for air supremacy. If you want to compete for air supremacy, you cannot do without excellent and advanced fighter jets.
These are the three main research directions planned by Yu Hua.
Hearing Yu Hua's answer, Zhao Zhongyao had a smile on his face and said, "Yu Hua, do you know who my teacher is?"
"Your teacher is Robert Andrew Millikan, the Nobel Prize winner in physics." Yu Hua said with some doubts in his heart.
"Then do you know who is the chairman of the executive committee of Caltech now?" Zhao Zhongyao continued to ask.
Yu Hua shook his head: "Students don't know."
The chairman of the Executive Committee of the California Institute of Technology is equivalent to the position of president of Tsinghua University. The specific candidate is not clear to Yu Hua.
"The current chairman of the executive committee of Caltech is my teacher Millikan." Zhao Zhongyao said with a smile.
Yu Hua was confused: "???"
Damn it, the world is so small?!
Yu Hua never expected that through Professor Zhao Zhongyao, he would inadvertently become involved with the seemingly distant California Institute of Technology on the other side of the ocean.
"Being my assistant for the rest of my life does not conflict with studying in the United States. It can even be said to complement each other. Firstly, I can participate in scientific research experiments and gain rich experience. Secondly, I can increase my resume and become more competitive than my peers."
Zhao Zhongyao smiled and said: "If you are willing, I will write you a letter of recommendation before you go to study in the United States. You can take my letter of recommendation and go to my teacher Millikan at any time. I believe he will give you
A very good reply from you.”
Recommendation letter from professor.
The classroom was quiet. When these words reached his ears, Yu Hua fell into silence. He was originally determined, but he still wavered in front of the letter of recommendation promised by Zhao Zhongyao.
The reason for Ma-Leon's superiority is not that he is not firm, but that Professor Zhao Zhongyao has given him too much.
There are really too many.
The relationship between master and apprentice was established directly and openly. Basically, after getting the professor's recommendation letter from Zhao Zhongyao, Yu Hua's future admission to the California Institute of Technology was a sure thing, and he would not be interfered by influences other than academics.
Judging from Yu Hua's ability, it is no problem to enter Caltech, but he is afraid of the influence from other aspects. It must be understood that Caltech is at the top of the pyramid of the American university system, and the threshold is not only ridiculously high, but also
High degree of regulation in other aspects.
A century of anti-Chinese is no joke.
This professor's recommendation letter completely hit Yu Hua's weakness.
"The teacher is so kind that the student dare not refuse." Yu Hua sighed in his heart. He gave too much, and his soul forced him to sell his body. He bowed and saluted, accepted the offer from Zhao Zhongyao, and officially became a migrant worker.
"This is the key to the nuclear physics laboratory. Next, you need to familiarize yourself with the laboratory and its work. All you have to do is help me calculate the data. I am usually too busy by myself."
Zhao Zhongyao showed a comfortable smile on his face, and then took out the key to the nuclear physics laboratory, handed it to Yu Hua, and arranged for him: "There is a place to live in the laboratory. If you are willing, you can move here. This is more convenient. There is room every month."
Eight yuan subsidy, if there is anything else you don’t understand, you can ask me.”
"Students know, um, professor, what should I do with my general elective courses?" Yu Hua took the key to the nuclear physics laboratory, responded respectfully, and then asked.
"You learn while experimenting in the laboratory, combining practice with theory. You will be exempted from the final exam and given 10 credits."
Zhao Zhongyao waved his hand generously, suddenly thought of something, and asked with concern: "Yu Sheng, are you planning to take the exam for the Geng Geng Scholarship to study in the United States as a public student this year, or next year?"
"Students are preparing to take the exam this year." Yu Hua was silent for a while and responded.
"This year? Then you have to prepare hard for the exam. If nothing else happens, this year's exam for government-sponsored students studying in the United States will be held around mid-August, and you will have to go to Nanjing to take the exam then." Zhao Zhongyao nodded and reminded.
Unfortunately, something unexpected will happen this year.
Yu Hua nodded in response and did not inform Zhao Zhongyao of the upcoming all-out war of resistance. Historically, due to the impact of the all-out war of resistance, Pingjin fell and North China was lost. The three northern and southern Qing schools evacuated Pingjin and concentrated in Changsha to build Changsha Provisional University, the predecessor of Southwest Associated University.
The exam for government-sponsored students studying in the United States with only 20 seats will definitely be affected by this catastrophe and will have to be postponed.
When exactly it will be held, Yu Hua doesn’t know.
However, he must take the exam for government-funded students studying in the United States with Geng Geng Grants. If he does not take it, he will not be able to study in the United States and lose the opportunity to make a fuss during the window period before the outbreak of World War II.
China has a window period before the outbreak of the Anti-Japanese War, and the entire world has a window period before the outbreak of World War II.
In Yu Hua's view, as a time traveler, we must not waste this opportunity to make a fuss.
Waste is equivalent to failure.——This is the basic quality that a qualified time traveler should possess.
"Yu Sheng, let's go to the laboratory and show you the true charm of nuclear physics." At this time, Zhao Zhongyao suddenly said before the get out of class ended.
Yu Hua was full of curiosity and nodded. There happened to be no classes in the afternoon, so he followed Zhao Zhongyao out of the classroom and headed to the most mysterious laboratory in Tsinghua University and even in the whole of China.
Zhao Zhongyao and Yu Hua walked through the Mechanical Hall and the Chemistry Hall and came to a small two-story red brick building. The plaque on the door clearly read - National Tsinghua University Nuclear Physics Laboratory.
Standing in front of the door, Zhao Zhongyao motioned for Yu Hua to come forward.
Yu Hua nodded, stepped forward with the key, unlocked the door, and pushed open the closed door of the laboratory building. The various cutting-edge equipment and instruments that existed in his imagination did not exist. The first floor of the laboratory building looked nothing like the teaching building.
the difference.
"Follow me." Zhao Zhongyao said to Yu Hua, walked into the experimental building first, and went straight inside.
Yu Hua followed suit and the two of them walked down the corridor. Soon after, they came to a closed door with information about Laboratory No. 1 written on the door.
Zhao Zhongyao took out a key from his body, unlocked it, and pushed the door open.
Yu Hua followed behind and walked into the laboratory with curiosity.
"This is an optical microscope."
"This is the Wilson Cloud Chamber, one of the main research instruments in nuclear physics. It is said that the California Institute of Technology has used an improved Wilson Cloud Chamber, and the improver is Teacher Millikan."
"This is an ionization chamber, which is also one of the main research equipment. It is very valuable. I brought it back from Caltech."
In the laboratory, the light is dim, and the windows are all covered with black curtains. It is surrounded by various experimental equipment and utensils. At the front is an optical microscope, and next to it is the famous Wilson Cloud Chamber. Professor Zhao Zhongyao introduced it to Yu Hua like a treasure trove.
Laboratory equipment.
Yu Hua was like Grandma Liu entering the Grand View Garden, curiously looking at these extremely primitive and crude equipment. It is hard to believe that it is through this experimental instrument that human physicists discovered and studied nuclear physics, mastered the planetary structure of atomic nuclei, and discovered radioactivity.
and rays.
magic.
It's really amazing.
At this time, Professor Zhao Zhongyao suddenly made a gesture to Yu Hua to follow him. Then, he walked towards the innermost part of the laboratory, came to a cabinet, squatted down, opened the cabinet, and carefully took out a wooden box.
Yu Hua stood behind him, his eyes staring at the wooden box, which was not that big. It was rectangular in shape and as big as a later Feitian Moutai box. Looking at Professor Zhao Zhongyao's solemn look, he felt a little expectant.
Under Yu Hua's gaze, Professor Zhao Zhongyao opened the lid of the wooden box, and in an instant, a faint blue light emerged.
Blu-ray!
An extremely pure blue light containing high energy.
A glass bottle containing 50 mg of radium was taken out by Professor Zhao Zhongyao with his bare hands and placed on the surface of the experimental bench.
This is the only 50 milligrams of radium in China, and it is currently the most important nuclear physics experimental research material in China.