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

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

Standing under the podium, Gao Yang was a little embarrassed. Although he was once a super scientist, his speech was indeed not Gao Yang's strength.

After hardening his head, Gao Yang cleared his throat: "Okay, I'll tell you something cutting-edge, can you understand it? It depends on your IQ. I think you will definitely not be unfamiliar with laser technology. Nowadays, lasers are widely used, such as cutting, welding, surface treatment, hole punching, marking, marking, micro-engraving, lasers, light guide systems, processing machine tools, control systems and detection systems... The automotive industry, computers, electrical shells, wooden knife molding industry, cutting of various metal parts and special materials, titanium alloys used in the aerospace industry, and even medical and military aspects are applied to lasers. I would like to ask a question on common sense. Do you know how lasers are formed?"

In the audience, a student stood up with interest: "I know that the principle of laser was discovered by the famous physicist Einstein as early as 1916. In 1917, Einstein proposed a new technical theory "stimulated radiation". This theory says that in the atoms that make up matter, different numbers of particles (electrons) are distributed at different energy levels. Particles at high energy levels will jump from high energy level to (transition) to low energy level. At this time, light of the same properties as the light that excites it will be emitted, and in a certain state, a weak light can excite a strong light. Laser is another major invention of mankind since the 20th century, after atomic energy, computers, and semiconductors. It is called the "fastest knife", "the most accurate ruler" and "the brightest light". Its brightness is about 10 billion times that of sunlight."

Gao Yang smiled: "It's right, laser is the interaction between light and matter. In essence, it absorbs or radiates photons from the microscopic particles that make up matter, and at the same time changes the performance of its own movement. Any working matter can achieve particle number reversal between specific energy levels of the particle system under appropriate excitation conditions. Ordinary light sources emit light in all directions, while lasers only emit light in one direction. If lasers are used as weapons, they can concentrate more than 1 million or even 10 million times of energy in a very short period of time, and can also change direction flexibly without any emission pollution. Now I will explain the future laser effects to you."

Gao Yang began to talk about the future application of lasers in science and technology. Gao Yang also expressed his ideas on laser weapons, from laser video communication, laser TV, laser sensors, laser guns to laser cannons, to laser defense shields, laser medical devices, nanomaterials made of lasers, chips made of lasers, and high-tech materials made of lasers. Gao Yang became more familiar with them the more he listened to them. The more he listened to them, the more he felt, and what Gao Yang said seemed to be not a class, but a science fiction novel.

The wide range of uses of lasers in the future is simply unimaginable. The power of lasers can destroy almost anything on the earth.

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

Professor Ma looked focused and kept recording the pen in his hand. Everything Gao Yang said was ahead of his time. For him, it was very tempting. Gao Yang explained the laser communication in a little bit, and the manufacturing process of laser guns and laser nanomaterials even more excited.

"Okay, Gao Yang spoke so well." Thunderous applause from the audience rang out.

Gao Yang suddenly woke up. Some of the things he just said were a bit ahead of his current situation, and he was too detailed, which would cause trouble.

"Okay, I have limited knowledge, I only know this." Gao Yang slipped off the stage with tactfulness.

Professor Ma excitedly grabbed Gao Yang: "Student Gao Yang, what you said is too rich and wonderful. Although the United States and Russia had developed laser guns and anti-satellite lasers in the 1970s and 1980s, due to material restrictions and production restrictions, it is impossible to produce in large quantities. Until now, no country has adopted laser communication and equipped a large number of laser weapons. However, what you just mentioned is that laser manufacturing nanomaterials and laser materials are too advanced. Can you explain it to me in detail?"

"Sorry, professor, I just found these things online, and there are more abundant things. I am an ordinary student, but I can only talk about them." Speaking again will cause trouble, and Gao Yang will not be so stupid that he exposes his talents.

Professor Ma was very unwilling to give up and anxiously grabbed Gao Yang: "Class Gao Yang, do you really only know this? If you have anything else to say, you can secretly tell me that I know many famous scientists and bosses of many large companies at MIT. I can help you contact them. You can work in the best companies in the United States and work in the best scientific research institutions in the United States. You will gain both fame and fortune..."

Before the professor finished his words, he was severely interrupted by Gao Yang. Gao Yang's face changed: "Professor Ma, you disappointed me. Originally, I thought you were just a pure physics enthusiast, just a scientist, but now, I kind of suspect you are a traitor. Don't tempt me with the United States. In my eyes, Americans are like monkeys in primitive society. They are not worth mentioning. Money, if I need it, I can make money at any time. I will not tell you anything anymore, I will lose my companionship."

Gao Yang turned around and left unhappily. Professor Ma caught up with Gao Yang with a look of embarrassment: "Class Gao Yang, you blamed me wrongly. How could I be a traitor? I really just love physics. I also have a Chinese heart. What I shed is also Chinese blood. I just think that the conditions for American scientific research are relatively good, the material foundation and political culture are superior. I just give some advice for your future and did not instigate you to become an American citizen."

"No need to say it again. Since the United States is so superior and China is so backward in your eyes, let's go back to your United States and stay in your country. There is a saying in China: Children don't think that their mother is ugly, and dogs don't blame their family for their poverty. No matter how backward China is, this is also our home. And I can tell you responsibly once that as long as I am willing, China can catch up with the United States in all directions within five years. Ten years later, it will be one hundred streets away from the United States and find your foreign master. What I hate the most is the backless guy."

Gao Yang felt extremely disgusted with the professor. You should know that in the 23rd century, most of the world's scientific and technological inventions were contributed by the Chinese. As a descendant of Yan and Huang, Gao Yang had a strong sense of self-esteem and a sense of arrogance in his bones. But he did not expect that in the 21st century, everyone admired the United States and derogated China to nothing. This was discrimination against race, disrespect for civilization, and blasphemy to ancestors.

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

"Einstein is a big deal in my eyes." Gao Yang rushed away angrily.

[Please collect, please recommend votes, give some support, otherwise I will have no motivation to write.]
Chapter completed!