This sentence was said in English.
When the words spread throughout the laboratory, Zhao Zhongyao was slightly startled, a little stunned, and then immediately realized that it seemed that Professor Carmen's old habit had happened again.
Appreciate talents, discover talents and cultivate talents. ——This is Von Karman’s favorite thing to do.
Of course, this is also the favorite thing of many top scholars in the world, including his teacher Millikan, Rutherford, the father of nuclear physics, and other Nobel Prize winners.
The scientific cause cannot be separated from the efforts of cutting-edge scientists, let alone fresh blood.
When Yu Hua heard Feng Karmen's words, he immediately felt the changes in the eyes of everyone around him, especially Professor Ye Qisun and the school staff. They didn't pay attention, with a natural expression. After thinking briefly for a second, he replied: "Students like it. The development of aeronautical engineering Determining the performance and combat effectiveness of the aircraft, students have also dreamed of designing and manufacturing a fighter jet with excellent performance to defend China's airspace sovereignty."
The speech naturally switches to English, American style, standard and smooth, without any desire.
"What a good boy, Yu. Your ambition is very great. I admire young people like you who are still working hard to move forward when the motherland is in danger. A country needs people like you, not those traitors." This English is pleasant to my ears. , Fon Karmen's eyes lit up even more, and Zanken nodded, looking at Yu Hua in front of him with a pair of clear eyes full of wisdom, and said.
"Thank you for your support, Professor Carmen." Yu Hua thanked him respectfully.
Looking at Yu Hua who was so polite, Fon Karman recalled his teaching Qian. In his opinion, there are two smartest races in the world, one is the Jews and the other is the Chinese.
The former comes from many top scientists, including Einstad, who are all Jewish, and the latter comes from the students he teaches - Qian.
Fon Karman looked at Yu Hua, and the language immediately switched to the familiar German, and said slowly: "Among the students I teach, there is one like you. He has very deep patriotic feelings, but the reason why he can become my student is , because he is very smart... Yu, tonight I will live at No. 15, Tsinghua Garden West Courtyard. If you are willing, I will leave you 15 minutes at eight o'clock in the evening. I hope you can bring me something that belongs to the Chinese people. clever'."
Von Kamen had a different kind of good impression of China, coupled with his unique hobby of discovering and cultivating talents, so he decided to give this Chinese student he met for the first time a chance.
A chance to prove whether you are smart or not.
Of course, this opportunity was not given casually. The reason why Fon Karman was willing to give Yu Hua this opportunity was because Yu Hua was Zhao Zhongyao’s assistant, and Zhao Zhongyao, who never liked to praise others, also specifically said that Yu Hua’s mathematical calculation ability was very strong.
What is most needed in aeronautical engineering?
That's right, it's calculation.
Yu Hua's status as a student at National Tsinghua University, Zhao Zhongyao's assistant, fluent English and German, and his love for aeronautical engineering prompted von Karman to give Yu Hua this opportunity.
Today, only thirty-four years have passed since the world's first airplane took off. Aeronautical engineering has become one of the most innovative and popular engineering disciplines in the world. Based on the basic principles of aeronautics as its theoretical foundation, it involves aircraft theoretical research, design, Testing, manufacturing, use and repair.
This is a discipline that places great emphasis on basic science and engineering technology.
As a world-class aerodynamics master, von Karman likes to invite everyone who is full of yearning for the blue sky to join the aeronautical engineering research team. This is the journey of chasing the blue sky.
However, he prefers that he invites geniuses rather than idiots.
"Thank you, Professor Carmen, I will be there on time." When Yu Hua heard this, he was surprised and pleasantly surprised. His strong psychological quality allowed him to keep a calm mind and a serious face, and expressed his most sincere gratitude to von Karmen.
Yu Hua never expected that Fon Karmen would be so straightforward and give him a chance, but the important thing now is not to dwell on the reasons, but...
Grasp it as if it were a life-saving straw.
Don't let go of every opportunity that can change your destiny. ——This is the basic quality that an adult should have.
Yu Hua can never have too many opportunities.
Whether it is Professor Zhuang Qianding's signature on the paper, Professor Zhao Zhongyao's recommendation letter, or the 15 minutes Professor Feng Kármán has given us now, we must cherish and seize them.
"I'm waiting for you. I hope you are a super genius like Qian." A kind and kind smile appeared on Feng Kamen's face, and his words revealed a touch of expectation. He then looked at Zhao Zhongyao beside him: "Dr. Zhao, sorry, Professor Zhao, Is it convenient to have dinner together?"
"As you wish, Professor Carmen." Zhao Zhongyao nodded towards Feng Carmen, looked at Yu Hua who was full of expectations, did not speak, and just smiled slightly.
Although he didn't know the content of the conversation between Yu Hua and Professor Carmen in German, he was familiar with Professor Carmen's character and could guess the general meaning.
Discover and cultivate.
If he can seize this opportunity, Yu Hua will have a greater chance of entering Caltech.
Zhao Zhongyao has no dissatisfaction or complaint about this kind of situation. Today he and Yu Hua have close communication and contact for the first time. But after the class, Zhao Zhongyao can already feel how strong this student's scientific talent and talent are.
This is a young eagle, a young eagle that is still growing.
When your wings are full, it’s time to spread your wings and fly.
Soaring in the nine heavens, becoming an eagle overlooking the heaven and earth.
Zhao Zhongyao only hopes that the young eagle Yu Hua can grow up smoothly and seize every opportunity.
That's all.
Yu Hua felt Zhao Zhongyao's attitude and also smiled.
Soon, Zhao Zhongyao and Feng Karmen, who came specially to visit, left quickly. After everyone left the laboratory, Yu Hua immediately started working as an assistant for eight yuan a month, tidying up the interior of the laboratory.
First, 50 milligrams of radium are processed.
Fifty milligrams of high-purity radium has a volume of about one-half of a grain of rice. Although this thing is small, the gamma rays and alpha rays it continuously releases are extremely deadly and should not be underestimated.
Yu Hua was not as bold as Professor Zhao Zhongyao, and he directly took the glass bottle with his bare hands. Although talking about toxicity aside from the dose was a hooligan, nuclear radiation...
Avoid as much as possible.
Yu Hua read the laboratory regulations and management system and found the instructions for handling radioactive materials written by Professor Zhao. According to the regulations and instructions, he found a set of lead suits weighing about 40 kilograms from the laboratory and disposed of them with a metal rack.
Lead, a metallic chemical element, has an atomic number of 82 and an atomic weight of 207.2. It is the non-radioactive element with the largest atomic weight. It is the end point of the decay process of all radioactive elements.
Familiar elements such as polonium, plutonium, uranium, and radium, all with atomic numbers greater than 82, are transformed into lead through decay processes.
The whole situation is like the end point of nuclear fusion is iron.
After all radioactive elements become lead, they become completely stable and no longer undergo decay and recombination into new elements. After all light atomic nuclei fuse and recombine until iron elements are formed, they can no longer fuse and generate elements heavier than iron.
The lead element, with an atomic number of 82, can easily withstand x-rays and gamma rays.
Wearing heavy lead clothing, Yu Hua had difficulty moving. His movements were slow and heavy. It took a lot of strength to put the glass bottle containing 50 milligrams of high-purity radium into the wooden box.
The entire wooden box looks like it is made of wood on the outside. In fact, it contains a layer of lead as a protective layer to resist the two types of rays released by radium.
It must be said that Professor Zhao Zhongyao's technological foresight is extremely terrifying. He has long been aware of military weapons and nuclear energy technology based on atomic nuclear energy, including antimatter military weapons, and he also understands the dangers and toxicity of radioactive elements.
Historically, the public only became aware of the dangers of radioactive elements after official science popularization after the explosion of two atomic bombs.
Previously, people's understanding of radium was extremely ridiculous and one-sided. Because radium can treat cancer, many businessmen promoted it based on this and began selling commercial products containing radium.
The first and most popular product to come out was water mixed with trace amounts of radium. It was called "radium supplement". Why was the word "supplement" added? It was because radium could cure cancer. People at the time thought drinking it would help. Doesn’t water with radium element prolong life?
Radium, which has extremely high toxicity, immediately transformed into a super supplement comparable to thousand-year-old ginseng.
The craziest commercialization process of radioactive elements in history has begun.
After the birth of radium and plutonium, a German tobacco company launched a cigarette containing radium. It claimed that one puff would refresh the mind and make two puffs a hundred times more energetic, causing men to go crazy. The value of this tobacco soared a hundredfold.
Next, the radium element transitioned from tobacco to the food field, and radium cocoa powder, radium ice cream, radium chocolate, and radium black tea began to appear on the market. The earliest honorary title of 'radium supplement' was taken away by a radium-containing health drug and became a real radium supplement in the sense.
The former becomes radium mineral water, which contains a variety of rich natural minerals, making you more energetic.
Radium element became more and more commercially popular. Soon after, radium-containing cosmetics appeared, including various radium masks and radium lipsticks, becoming top cosmetics sought after by women.
However, this is not the most amazing thing.
In the 1930s, a radioactive underpants containing radium came out. It was claimed that it could provide comprehensive care for men through radiation, which could not only increase desire but also improve fertility.
Immediately afterwards, a radium-containing condom was born, which was so effective that even if it broke, it would never give birth to a child.
To this day, radium products are still popular on the market.
Of course, the purity of radium used in this commercial field is not high, and there is a big gap between the high-purity radium used in laboratories. Governments in various countries control high-purity radium, not the former.
…
After placing the precious 50 milligrams of high-purity radium, Yu Hua cleaned the laboratory. After everything was done, Yu Hua took a shower, left the nuclear physics laboratory and headed to the dormitory. He was ready to have a good rest and prepare for the night. Get ready for the eight o'clock meeting.
On the way back to the dormitory, the usually quiet campus suddenly became noisy. Many students were walking in a hurry, and many even started running.
"Classmates, what are you doing?" Yu Hua was a little confused when he saw this situation, and then he stopped a boy running quickly next to him and asked.
"The school has just notified that the famous Professor von Kármán from the California Institute of Technology has come to the school for an academic visit and is going to speak in the auditorium. It will start immediately. I'm going to grab a seat, otherwise I'll have to stand later." Seeing Yu Hua With doubts on his face, the panting boy spoke quickly and left immediately after speaking, heading towards the Tsinghua University Auditorium.
"Speak?"
Looking at the boy's leaving figure, Yu Hua was startled. Didn't Professor Fon Karmen and the others go to eat?
Forget it, why do I care about this?
After half a breath, the whole person also headed towards the auditorium.
Yu Hua was equally curious about Mr. von Karman's speech.
Not long after, Yu Hua arrived at the auditorium. The once cold auditorium was now bustling with activity. The door was full of students queuing up to enter. Yu Hua waited in line for about ten minutes before entering the auditorium.
The ring-shaped auditorium was all full, and the front rows were filled with school professors and senior officials. Mei Yiqi, Ye Qisun, Wen Yiduo, Chen Yinke, Zhao Zhongyao, Xiong Qinglai, Yang Wuzhi, his master Hua Luogeng, etc. were all present.
Yu Hua found a gap and squeezed to a place not far from the podium. There was no seat, so he could only stand obediently and wait for the speech to begin.
Not long after waiting, the slightly noisy auditorium suddenly became quiet, and a familiar foreign figure slowly appeared on the podium.
"Hello, gentlemen and ladies here, I am von Kármán, a professor of aeronautics at the California Institute of Technology. Nice to meet you."
