my scientific age

Chapter 242 Von Karmen's speech!

This sentence is spoken in English.

When the words spread throughout the laboratory, Zhao Zhongyao was slightly startled, a little stunned, and then reacted immediately, it seems that Professor Carmen's old problem has been committed 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, the father of nuclear physics Rutherford, who worked together with him, and other Nobel Prize scholars.

The scientific career is inseparable from the efforts of cutting-edge scientists, and even more inseparable from fresh blood.

When Yu Hua heard Feng Kamen's words, he immediately felt that the eyes of the people around him had changed, especially Professor Ye Qisun and the school staff. To determine the performance and combat effectiveness of the aircraft, students have also dreamed of designing and manufacturing a fighter with excellent performance to defend China's airspace sovereignty."

The language is naturally switched to English, American style, standard and smooth, without the slightest desire.

"What a good boy, Yu, your ambition is very great. I admire young people like you who are still working hard when the motherland is in crisis. A country needs people like you, not those traitors." , Feng Kamen's eyes brightened even more, Zan Ken nodded, a pair of clear eyes full of wisdom, looked at Yu Hua in front of him, and said.

"Thank you for your support, Professor Carmen." Yu Hua thanked him respectfully.

Looking at such a polite Yu Hua, Feng Kamen recalled the money he taught. 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 Einsta, who are all Jewish, and the latter comes from the students he taught - money.

Feng Kamen looked at Yu Hua, the language immediately switched to the familiar German, and said slowly: "Among the students I teach, there is a student who has very deep patriotic feelings like you, but the reason why he can become my student , because he is very smart...Yu, tonight I will be staying at No. 15, West Yard of Tsinghua Garden, if you want, I will leave you 15 minutes at [-] pm, I hope you can bring me the 'Chinese people' clever'."

Feng Kamen has a different kind of goodwill towards Zhonghua, coupled with his unique hobby of discovering and cultivating talents, so he decided to give this Chinese student who he met for the first time a chance.

A chance to prove if you are smart.

Of course, this opportunity is not given at will. The reason why Feng Kamen is willing to give Yu Hua this opportunity is because Yu Hua is Zhao Zhongyao's assistant, and Zhao Zhongyao, who has never liked to praise people, also specially expresses that Yu Hua's mathematical calculation ability is very strong.

What do aeronautical engineering need most?
Yes, it is calculation.

Yu Hua's status as a National Tsinghua University student, Zhao Zhongyao's assistant, fluent English and German, and a love for aeronautical engineering prompted Feng Kamen to give Yu Hua this opportunity.

Today, only 34 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, it involves aircraft theoretical research, design, testing, Manufacture, use and maintenance.

This is a discipline with a strong focus on basic science and engineering technology.

As a world-class aerodynamics master, Feng Kamen likes to invite everyone who yearns for the blue sky to join the aerospace engineering research team. This is a journey of chasing the blue sky.

However, he prefers that he invites geniuses, not idiots.

"Thank you, Professor Carmen, I will be there on time." Yu Hua was surprised and pleasantly surprised when he heard the words. His strong psychological qualities kept his head calm and his face serious. He extended his most sincere thanks to Feng Carmen.

Yu Hua didn't expect Feng Kamen to be so straightforward and give himself a chance, but what's important now is not the reason, but...

Hold onto it like a life-saving straw.

Every opportunity that is enough to change the fate cannot be missed. - 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 thesis signature, Professor Zhao Zhongyao's recommendation letter, or the 15 minutes now given by Professor Feng Kamen, we must cherish and seize it.

"I'm waiting for you, I hope you are a super genius like Qian." Feng Karmen's face showed a kind and amiable smile, his words revealed a touch of anticipation, and his eyes immediately turned to 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 and looked at Yu Hua, who was full of expectation. He didn't speak, but just smiled.

Although he didn't know what Yu Hua and Professor Carmen were talking about in German, he was familiar with Professor Carmen's character and could guess the general meaning.

Discover, cultivate.

If he can seize this opportunity, Yu Hua's chances of entering Caltech will be even greater.

Zhao Zhongyao did not have any dissatisfaction or complaints about such a situation. Today, he and Yu Hua had a close communication for the first time, but after a class, Zhao Zhongyao could already feel how strong the student's scientific talent and talent were.

This is a young eagle, still growing.

When the wings are full, it is time to soar.

Soar above the nine heavens and become an eagle overlooking the heavens and the earth.

Zhao Zhongyao only hoped that Yu Hua, the young eagle, would grow up smoothly and seize every opportunity.

That's it.

Yu Hua felt Zhao Zhongyao's attitude and also smiled.

Soon, Zhao Zhongyao and Feng Kamen, who came to visit specially, and the others left quickly. After everyone left the laboratory, Yu Hua immediately started to work as an assistant for eight yuan a month, tidying up the interior of the laboratory.

First, 50 mg of radium was processed.

Fifty milligrams of high-purity radium is about half the volume of a grain of rice. Although this thing is small, the gamma rays and alpha rays that are continuously released are extremely deadly and should not be underestimated.

Yu Hua didn't imitate Professor Zhao Zhongyao's boldness, he directly took the glass bottle with his bare hands. Although it would be a hooligan to talk about toxicity without the dose, but nuclear radiation is such a thing...

Avoid as much as possible.

Yu Hua read the rules and regulations of the laboratory, and found the radioactive material handling precautions written by Professor Zhao. According to the regulations and instructions, he found a set of lead suits of about [-] kilograms from the laboratory, and then disposed of them on a metal shelf.

Lead, a metallic chemical element with an atomic number of 82 and an atomic weight of 207.2, is the non-radioactive element with the largest atomic weight. It is the end point of the decay process of all radioactive elements.

The well-known elements such as polonium, plutonium, uranium, and radium, all of which have atomic numbers greater than 82, are transformed into lead after repeated decay processes.

The whole situation, as if the end point of nuclear fusion is iron.

After all the radioactive elements become lead, they are completely stabilized and no longer decay and recombine into new elements. All the light atomic nuclei are fused and recombined again and again until the iron element, and they can no longer be fused to produce elements heavier than iron.

The lead element with an atomic number of 82 can easily withstand the attacks of X-rays and gamma rays.

Wearing a heavy lead coat, Yu Hua was quite inconvenient to move around. His movements were slow and heavy, and he wasted a lot of energy. Only then did he put the glass bottle containing [-] mg of high-purity radium into the wooden box.

The whole wooden box looks like it is made of wood, but in fact, it is equipped with a layer of lead as a protective layer, which is used to resist the two kinds of rays released by radium.

It has to be said that Professor Zhao Zhongyao's technical foresight is extremely terrifying, that is, he realized early on the military weapons and nuclear energy technology based on nuclear energy, including antimatter military weapons, and also understood the hazards and toxicity of radioactive elements.

Historically, the public really realized the dangers of radioactive elements, and they had to wait for the two atomic bombs to explode and go through official popular science.

Previously, people's understanding of radium was extremely ridiculous and one-sided. Because radium can cure cancer, many businessmen promoted this point and began to sell commercial products containing radium.

The first and most down-to-earth product was water mixed with trace amounts of radium, which was called 'radium supplement'. Wouldn't radium water prolong life?

The highly toxic radium immediately transformed into a super tonic comparable to thousand-year-old ginseng.

The craziest commercialization of radioactive elements in history has begun.

After the birth of radium and plutonium, a German tobacco company launched a cigarette containing radium, claiming that one mouthful of cigarettes will refresh the mind, and two mouthfuls will make men crazy, and the value of this kind of tobacco has skyrocketed a hundredfold.

Then 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 care medicine and became a real Radium supplement in the sense.

The former becomes radium mineral water, which contains various rich natural minerals, making you more energetic.

The commercial popularity of radium element is getting higher and higher. Soon after, cosmetics containing radium appeared, and various radium facial masks and radium lipsticks appeared, becoming the top cosmetics sought after by women.

However, this is not the most magical.

In the 30s, a radium-containing radiation underwear was born, claiming that it could care for men in all aspects through radiation, not only can improve desire, but also improve fertility.

Then, a radium-containing condom was born, and the effect was outstanding. Even if it was damaged, it would never give birth to a child.

Today, radium products are still prevalent in the market.

Of course, the purity of radium used in this commercial field is not high, and there is a big gap between it and laboratory-grade high-purity radium. Governments control high-purity radium, not the former.

……

After placing the precious fifty milligrams of high-purity radium, Yu Hua cleaned the laboratory by the way. After everything was done, Yu Hua took a shower and left the nuclear physics laboratory to go to the dormitory. He was ready to rest well for the evening. Get ready for the eight o'clock meeting.

On the way back to the dormitory, the quiet campus in the past suddenly became noisy. Many students were in a hurry, and many people even ran.

"Classmates, what are you doing here?" Yu Hua was a little puzzled when he saw this situation, and immediately stopped a boy who was jogging next to him and asked.

"The school has just notified that the famous Professor Von Karman from the California Institute of Technology is coming to the school for an academic visit and is about to speak in the auditorium. It will start immediately. I will go grab a seat, otherwise I will have to stand." Seeing Yu Hua With doubts on his face, the panting boy spoke very fast, and left immediately after speaking, heading towards the Tsinghua Garden Auditorium.

"Speak?"

Looking at the back of the boy leaving, Yu Hua was stunned for a moment. Didn't Professor Feng Kamen and the others go to dinner?

Forget it, what am I doing?

After half a breath, the whole person also went in the direction of the auditorium.

Yu Hua was also curious about Mr. von Karman's speech.

Not long after, Yu Hua came to the auditorium. The auditorium used to be cold and cold, but now it is very lively. The entrance is full of students queuing up to enter. Yu Hua waited in line for about 10 minutes before entering the auditorium.

The auditorium in the form of a ring structure was all filled, and the front row was filled with professors and senior management, Mei Yiqi, Ye Qisun, Wen Yiduo, Chen Yinque, Zhao Zhongyao, Xiong Qinglai, Yang Wuzhi, his own master Hua Luogeng, etc. All were present.

Yu Hua found a space and squeezed into a place not far from the podium. There was no seat, so he could only stand obediently and wait for the speech to start.

After waiting for a long time, the slightly noisy auditorium suddenly became quiet, and a familiar foreign figure slowly appeared on the podium.

"Hello, ladies and gentlemen, I'm von Karman, professor of aviation at the California Institute of Technology. It's a pleasure to meet you."

(End of this chapter)