Chapter 74

Life is like this. As people wish, it has been difficult so far. It's not impossible to live a simple and popular life. Who can guarantee enough foresight for a lifetime? At the crossroads of life, in addition to the postgraduate entrance examination, there are still many choices, and not everyone is suitable for scientific research. Teachers, doctors, nurses, maintenance workers and so on, there must be every occupation in the spacecraft.

The atmosphere at the dinner table gradually improved, and many things just wanted to open.

At present, the whole society is still dominated by young people, the class has not been solidified, the whole social structure does not need to consider too many "money" problems, and the pressure is not so great.

"Using knowledge to realize class transition is actually the healthiest operation mode of human civilization. Even if you are not admitted to graduate school, you can be like me. As long as you work hard, there are many ways to realize your value. " Finally, brother Wang Xin delivered another speech on life.

After dinner with his friends, Zhang Yuan returned to his bedroom and began to learn new knowledge.

Space mechanics has too much to learn.

A spaceship, whether large or small, almost involves more than a dozen disciplines, large and small, such as physics, biology, materials, chemistry and so on.

He teaches himself for a long time every day.

In particular, it's good to attend more difficult interviews next, even if it's just cramming for study.

"... let's start with integrated circuits."

Zhang Yuan opened "ASIC design", a classic book, which mainly covers the basic process of Digital IC and ASIC design, plus the main design methods, with a total of 8 chapters.

When he was in college, he had received relevant knowledge, but it was not in-depth.

Actually... It's not too difficult.

The essence of silicon-based chip is actually very simple to understand: on the same semiconductor substrate, the PN junction has single conductivity. Connecting both ends of the PN junction with wires is a diode. With diodes, we can easily design "and gate circuit" and "not gate circuit", and then it can be used for logic calculation.

The Soviets once made ternary circuits, which are slightly different from binary circuits. There are two more resistors in "and gate circuit" and "non gate circuit". However, this difference is more troublesome and costly for the manufacturing industry, and the yield of chips is much lower. Because of various shortcomings, they are gradually eliminated.

Sounds like such a simple thing, almost killing 99.9% of human beings!

Zhang Yuan felt that without the help of computers, even if he spent a month designing circuits, his computing ability could not compare with that of a six-year-old child

To put it bluntly, the more you study, the more you can understand the greatness of nature.

Chipology, a discipline that has developed for hundreds of years, from ancient diodes and integrated circuits to the latest photonic chips, its basic "energy band theory" is actually only an approximate theory. Human beings know that it is not completely correct, but they can't correct it.

Because the behavior of electrons can't be calculated accurately.

To put it further, despite the complexity of various disciplines, most of them are just playing with electronics.

As long as you are proficient in the various properties of electrons, you can learn by analogy in other disciplines.

After reading for six hours, he stopped and took a breath.

The fast-moving brain is a little hot and needs some time to absorb these new learning contents.

"I'd better change my mind and have a rest."

I went out for dinner and spent half an hour.

He turned on the computer again and found that there were a lot of unprocessed information in the mailbox. He clicked and replied one by one.

The work project on earth is a good exercise opportunity, but we should continue to do it. He is mainly engaged in the work on the algorithm framework. The progress is a little faster than the team on earth. It is enough to spare four or five hours a day.

Therefore, studying more than ten hours a day is definitely not boasting.

The above day is almost a very routine day for Zhang Yuan. Sometimes I feel very tired, but it is more the sense of enrichment brought by knowledge. Do not play games, do not watch soap operas, do not fall in love, and forcibly make yourself strong.

Zhang Yuan sighed in his heart: "if Li Zhendong works so long every day, even if he is not better than me, he has more than half the level..."

But he knew deeply that what he was looking at was just a scratch. There are definitely many better people in the world than him.

There are five levels of Xueba in the world.

The first level is that on the way of long-distance travel, I heard a strange aunt boasting about how well her children were. They were admitted to the municipal key junior middle school and senior high school, the first and the second in the class.

This should be the lowest level of Xueba.

It's just high school. I don't know what I'm bragging about

The second level is that after going to a key university, some people also have classes and self-study. After one semester, they inexplicably got a high score.

Over time, I will gradually find that no matter how hard I try, I can't seem to surpass these people. They are always more efficient than ordinary people in the same learning time.

Such bullies are often called "real school bullies".

The third level, of course, is the legendary "learning God".

Unlike Xueba, if you don't study much, you can get high marks in the exam.

They are the most dangerous people in the University. Many weak chickens without self-knowledge follow them. They also play games online all night, but they hang up several courses.

Suddenly looking back, the guy who was also playing with the noise also took part in what competitions and Scholarships

Weak chicken failed to pass the grade, but "learning God" went abroad.

The fourth level, which has begun to march towards non-human beings, is called the real "God".

From the perspective of personal morality, "God" is flawless.

They are both gods and tyrants. The most domineering place of these "gods" is naturally physical strength and sustainability. Learning is a very happy thing for them, just like chewing xuanmai, they can't stop at all.

In the face of "God", ordinary people will only pale in comparison, feel ashamed and can't afford any trace of jealousy.

Naturally, learning from God can not be compared with the real "God". Because the ability to learn God is limited to the knowledge in textbooks, and the real "God" has long jumped out of the scope of school.

Zhang Yuan confidently estimated that he was marching in this direction

There is even the fifth level, of course, the "God of God"!

It can only be witnessed in the greatest genius in the world.

For example, academician Ding, the intended tutor, is a mathematics department of P University, majoring in mathematics, with 20 100 points and 6 99 points!

But he never boasted about the trivial matter of full marks in the exam. For these "gods", exams, competitions and scholarships are as childish as kindergarten games.

Ding Zhaodong was a freshman in University. In this year, he learned all the contents of the four years of University. Incidentally, he was a little bored and learned the courses of the physics department next door

However, these are not important. Only exploring the infinite nature is the joy in the life of "God above God".

People stronger than Ding Zhaodong, yes!

For example... Professor Wang Zhong!

Professor Wang became famous when he was young. At the age of 22, he had a great work in the field of Mathematics - "homology function in kernel space".

Zhang Yuan still can't understand this paper on algebraic geometry.

In Professor Wang's words, the most talented brain in the world should study mathematics. For these engineering professors who have no mood and aesthetic ability, he disdains to talk to them

Even these people study day after day and year after year. The accumulation over the past few decades has increased linearly. The gap between people is actually bigger than that between people and dogs.

So, what qualification does he have to complain endlessly?

……

(push a little friend's book "early login of elves". Friends who like the second dimension can have a look.)