Under the professor's pleading and the students' pushing, Gao Yang had no choice but to return to the classroom again.

Another class in the afternoon has been adjusted, and Gao Yang has been pushed onto the podium to explain the physics class to the students.

Standing under the podium, Gao Yang was a little embarrassed, although he used to be a super scientist, but speech was indeed not Gao Yang's strong point.

Hardened, Gao Yang cleared his throat: "Okay, I'll tell you a little cutting-edge things, can you understand, look at your IQ, I think everyone must not be too unfamiliar with laser technology, now laser is used in a wide range of uses, cutting, welding, surface treatment, punching, marking, scribing, micro-carving, lasers, light guide systems, processing machine tools, control systems and detection systems...... The automotive industry, computers, electrical casings, wood knife mold industry, cutting of various metal parts and special materials, titanium alloys used in the aerospace industry, and even medical and military applications are all applied to lasers. ”

In the audience, a student stood up with high interest: "I know that the principle of laser was discovered by the famous physicist Albert Einstein as early as 1916, and in 1917 Einstein proposed a new set of technical theories 'stimulated radiation'. This theory is that in the atoms that make up matter, there are different numbers of particles (electrons) distributed at different energy levels, and the particles at the higher energy level will jump from the higher energy level to the lower energy level when they are excited by a certain photon, and then they will radiate light of the same quality as the light that excites it, and in a certain state, there can be a phenomenon of a weak light exciteing a strong light. Since the 20th century, after atomic energy, computers, and semiconductors, the laser is another major invention of mankind, and is known as "the fastest knife", "the most accurate ruler", and "the brightest light". It is about 10 billion times brighter than sunlight. ”

Gao Yang smiled slightly: "That's right, laser is the interaction between light and matter, which is essentially the performance of the microscopic particles that make up the matter to absorb or radiate photons and change their own motion at the same time. Any working substance, under appropriate excitation conditions, can achieve a particle number reversal between specific high and low energy levels of a particle system. Ordinary light sources emit light in all directions, while lasers only emit light in one direction, if the laser is used as a weapon, it can concentrate more than 1 million or even 10 million times the energy of a nuclear weapon in a very small area and in a very short time, and it can also change direction very flexibly without any emission pollution. Now let me tell you about the future of lasers. ”

Gao Yang began to talk eloquently, and said the future application of lasers in science and technology, Gao Yang also said his ideas about laser weapons, from laser video communication, laser TV, laser sensors, laser guns to laser cannons, and then to laser defense shields, laser medical devices, nanomaterials made with lasers, laser-made chips, laser-made high-tech materials, the more Gao Yang said, the more familiar he became, the more the students in the audience listened, the more they tasted, Gao Yang didn't seem to be a class, but a science fiction novel.

The lasers of the future are unimaginably versatile, and they are so powerful that they can destroy almost anything on Earth.

In addition to the use of lasers, Gao Yang also randomly cited several laser guns, the process of laser manufacturing nanomaterials.

Professor Ma looked focused, the pen in his hand kept making records, everything Gao Yang said was something ahead of his time, for him, the temptation was very great, and Gao Yang's slightly auspicious explanation of the manufacturing process of laser communication, laser gun and laser nanomaterials made the professor even more excited.

"Okay, Gao Yang said it too well." The audience burst into thunderous applause.

Gao Yang suddenly came to his senses, some of the things he just said were a bit ahead of his time now, and he spoke too much, which would cause trouble.

"Well, I have limited knowledge, that's all I know." Gao Yang slipped off the stage in a witty way.

Professor Ma excitedly grabbed Gao Yang: "Gao Yang, what you said is too rich and wonderful, although the United States and Russia have developed laser guns and anti-satellite lasers in the seventies and eighties, but due to material limitations, due to production restrictions, they cannot be mass-produced at all. Up to now, no country has adopted laser communication and is equipped with a large number of laser weapons, but the laser manufacturing of nanomaterials and the mass manufacturing of laser materials you just mentioned are too advanced, can you explain it to me in detail. ”

"I'm sorry, professor, these things, I just searched on the Internet, more abundant things, I'm an ordinary student, where do I know, I can only talk about this." If you talk about it again, it will cause trouble, and Gao Yang will not be stupid enough to expose his talent.

Professor Ma was unwilling, and grabbed Gao Yang anxiously: "Gao Yang, do you really only know this?" If you still have anything to say, you can tell me secretly, I know a lot of famous scientists at MIT, I know a lot of big company owners, I can help you contact them, you can work in the best companies in the United States, work in the best scientific research institutions in the United States, you will have fame and fortune ....... ”

Before the professor's words were finished, he was interrupted by Gao Yang fiercely, and Gao Yang's face changed: "Professor Ma, you disappointed me very much, originally, I thought you were only a pure physics enthusiast, just a scientist, but now, I am a little suspicious that you are Han Jian." Don't tempt me with the United States, the Americans are like monkeys in primitive societies in my eyes, not worth mentioning, money, if I need it, I can earn it at any time, I won't tell you anything anymore, I'm out of company. ”

Gao Yang turned away unhappily, Professor Ma caught up with Gao Yang with an embarrassed face: "Gao Yang, you blame me, how can I be a Han anniversary, I really just love physics, I also have a Chinese heart, I also have the blood of Chinese, I just think that the conditions for scientific research in the United States are better, the material foundation and political culture have superior surnames, I just give some advice for your future, and I did not encourage you to become an American citizen." ”

"Needless to say, since the United States is so superior, China is so backward in your eyes, go back to your United States and stay, China has a saying: children don't think their mothers are ugly, and dogs don't complain about poverty. No matter how backward China is, this is also our home. And I can tell you responsibly once, as long as Lao Tzu is willing, China can catch up with the United States in all directions within five years, and ten years later, throw off the United States a hundred streets, find your foreign master, Lao Tzu hates the most spineless guy. ”

Gao Yang had a strong sense of disgust for professors, knowing that in the 23rd century, most of the world's scientific and technological inventions and creations were contributed by Chinese people. As a descendant of Yan and Huang, Gao Yang has a strong self-esteem and arrogance in his bones. But I didn't expect that in the 21 st century, everyone would worship the United States and belittle China to nothing. This is discrimination against the human race, this is disrespect for civilization, this is blasphemy against ancestors.

Gao Yang's throwing of his sleeves made Professor Ma very annoyed: "Gao Yang, you are too crazy, I admit that you are talented, you are talented, but you want China to catch up with the United States in five years, unless you have a smarter brain than Einstein." ”

"Albert Einstein is a fart in my eyes." Gao Yang rushed away angrily.

[Ask for collections, ask for recommendation votes, give some support, otherwise I won't be motivated to code.] 】

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