Superspace Future Technology

Chapter 207 A Shocking Lesson
"Aerospace technology? Did I hear you right?" Teacher Dong, who was sitting in the second row and wearing glasses, said in surprise.

The younger male teacher sitting next to him, that is, in his thirties, also looked at Bai Xiaodao in surprise, and asked questioningly, "Does he know aerospace technology?"

The students in the audience were also stunned and couldn't react for a while.

For a month in a row, he has been talking about technical knowledge related to electronic products. Now Bai Xiaodao suddenly popped up a space technology, space technology.

What is aerospace technology?Whether it is the students or the teachers present, it is estimated that they are all at a loss in this regard.

Although there are explanations about aerospace technology in university textbooks, there are also books and materials about aerospace technology in the library.But the students here have never seriously studied this aspect of knowledge, mainly because aerospace technology is too incompatible and impractical for everyone.They didn't attend aerospace universities, so they didn't pay attention to aerospace technology.

"It seems that everyone is very unfamiliar with aerospace technology! I wonder if anyone has a deep understanding of aerospace technology?" Bai Xiaodao was not surprised. On the contrary, he had already guessed this reaction.

Teacher Dong, wearing glasses, stood up. He is a teacher of science and technology, and also teaches physics and chemistry.Regarding Bai Xiaodao's courses, he was just curious at first, and then turned into admiration. It has to be said that Bai Xiaodao is indeed a genius, no wonder he has such shocking achievements at such a young age.

In terms of teaching, Bai Xiaodao's style is worth learning from his elders. Therefore, when answering questions, Teacher Dong stood up politely like a student and said: "Aerospace technology is also called space technology. It is a process of exploration, development and utilization. The comprehensive engineering technology of space and celestial bodies other than the earth is also an important symbol of the comprehensive development level of a country's modern technology. In the past 40 years, aerospace technology has developed rapidly, and it has many characteristics. Here are three outstanding features. First, space Technology is a highly comprehensive modern science and technology, which is the integration of many latest achievements in science and technology, including jet technology, electronic technology, automation technology, remote sensing technology, material science, computing science, mathematics, physics, chemistry, etc. Second, aerospace Technology is a science and technology that has a macroscopic effect on national modernization and social progress. Due to the fast flight speed and high altitude of the spacecraft, it can quickly cover the earth's surface in a large area. For example, the TV network covers the whole country and the whole world through satellites; meteorological satellites Global weather forecasts can be made, including long-term weather forecasts; reconnaissance satellites can detect military activities in various regions of the world in a timely manner, many of which cannot be achieved by conventional means. Third, space activities are high-input, high-efficiency, and high-risk career. Although the risk is great, the contribution of the development of space technology to mankind is enormous, so it will continue to develop.”

"The above is my understanding of aerospace technology. I am more interested in aerospace technology!" After finishing speaking, Teacher Dong did not sit down in a hurry, but looked at Bai Xiaodao curiously. Do young people who are genius scientists really understand aerospace technology?

"Yes, Mr. Dong can remember the basic introduction of aerospace technology so firmly, which means that he must have had a deep understanding." Bai Xiaodao looked at this teacher who was ten or twenty years older than himself with admiration, and he had some expectations in his heart, but he didn't I know whether Mr. Dong has done any research on aerospace technology. If he has mastered the basic knowledge of aerospace technology, then he is the aerospace technician that Bai Xiaodao wants to win over!

"As for aerospace technology, it doesn't matter even if you haven't studied it. In life, everyone is definitely familiar with aerospace technology, such as Dongfanghong satellite and Shenzhou spacecraft. You should have understood it in high school physics textbooks. The three cosmic speeds, everyone Do you have an impression?" Bai Xiaodao wrote the five words of three cosmic speeds on the blackboard while talking.

A boy immediately stood up in front of Teacher Dong and answered: "The first cosmic velocity is called orbital velocity, the second cosmic velocity is called escape velocity, and the third cosmic velocity is called escape velocity."

Bai Xiaodao nodded. This boy is probably a memory-type student master, so he asked: "Student, do you still remember the speeds of these three cosmic speeds?"

"This..." The boy faltered, and then awkwardly said that he forgot.

Many students around looked at the boy gloatingly, Teacher Dong stood up again and said: "The first cosmic speed is to fly out of the earth, and can fly around the earth, 7.9 kilometers per second.

The second cosmic speed is 11.2 kilometers per second, and it can fly around the sun.

The third cosmic velocity is 16.7 kilometers per second, and it can escape the solar gravitational force and fly out of the solar system.

There is also the fourth cosmic speed. Scientists predict that when the object has a speed of 110-120 kilometers per second, it can leave the banking system and enter other galaxies. "

As expected of Teacher Dong!

Teacher Dong teaches physics and chemistry, so it is normal to know these basic knowledge!
Bai Xiaodao nodded, and said: "The speed of the fourth universe is just a guess of people. As for whether it is correct or not, it is still uncertain, but I believe that in a few years, or decades or hundreds of years, the answer will come out." When you get out of the water, there will definitely be the fifth cosmic speed, the sixth cosmic speed, etc.!"

Ok?Teacher Dong looked at Bai Xiaodao in shock, I like to hear this!
"Now let me tell you about jet technology in aerospace technology!"

Bai Xiaodao picked up the chalk, he didn't use the projection computer to search for information and put it on the blackboard, because everyone can search for the knowledge from the computer after class, so he won't waste time doing these useless tricks.

For Bai Xiaodao, teaching students with his own understanding and opinions on jet technology is the correct way of education, which cannot be replaced or compared with textbook knowledge and computer search information.

"Aerospace jet technology is the most important technology in a spacecraft, so..."

On the podium, Bai Xiaodao eloquently explained the principle of jet technology, and then listed some related technologies and formulas on the blackboard.

This process completely stunned Mr. Dong's attention, he never thought that Bai Xiaodao knew so much about aerospace technology!Those who didn't know thought he was an expert professor in the aerospace industry!

"Okay, let's finish this class first, and I will arrange another class in two days to explain the knowledge of aerospace technology." Bai Xiaodao heaved a sigh of relief, and the class was quite tiring.

"Why did get out of class end so soon!"

"Yeah, I haven't heard enough! Space technology knowledge sounds so cool!"

"This is really attractive, but it seems useless for us to learn this!"

The students had different opinions, and most of them expressed their liking for the aerospace technology course taught by Bai Xiaodao.

(End of this chapter)