God-level Xueba system

What is Quantum Gravity?

Quantum gravity, also known as quantum gravity, is a theory describing the quantization of the gravitational field, which belongs to the corner of the theory of everything; it mainly tries to combine general relativity and quantum mechanics, which is an unsolved problem in current physics.

The current mainstream attempted theories include: superstring theory, loop quantum gravity theory, and acoustic analogy model.

"Thank you Professor Linde for your wonderful explanation!"

After Yan Xin finished speaking, there was warm applause from the audience.

"So how should we explain the origin of species in combination with what we know about quantum gravity? As we all know, the person who has made outstanding research results in the origin of species is Darwin! So from his point of view, how should we connect quantum Gravity, to correctly explain the origin of species?"

We must know that quantum gravity is the smallest unit of gravity. To solve the essential problem of quantum gravity, we can gather them together to study the problem of singularity, which is the problem of the origin of the universe in cosmology.

And the birth of the universe requires thinking: the singularity big bang!
Regarding the singularity, after my research and analysis, I believe that the singularity is a substance with infinitely small volume and infinite mass.

Explained in this way, although the singularity looks very inconspicuous, it contains everything in the universe!
You know, after the big bang, the universe has been expanding continuously, giving birth to countless celestial bodies. At present, the scope of the universe that humans can observe is 930 billion light-years, and the number of observable stars is as many as 300 billion. , this is not counting various planets, asteroids, comets and other celestial bodies.

Who proposed the singularity?
Einstein!

This mysterious substance that can stop time in Einstein's mouth is the "singularity".Therefore, many people think that the birth of the universe may not come from a small singularity, at least it is much more complicated than what we imagine now. It can be said that the appearance of the universe before its birth has completely exceeded human cognition Now, just how the singularity came about is enough to make people feel incredible.

Therefore, many people have considered quantum gravity, which may be one of the reasons for the origin of species.

Among the experts, the gentle black man from last time bared his teeth and raised his hand again.

"Hello, Yan Xin! I want to ask, if you say it like this, is the parallel universe in the Marvel Universe real?"

All the experts, professors and academicians present laughed at the same time.

That's just comics.

How could it be true? !

Yan Xin nodded in disbelief.

And everyone was dumbfounded!

Could it be that parallel universes really exist in this world?
"If parallel universes really exist. In one space, there are countless universes running without interfering with each other. In this way, universes will be born and die, just like the process of human beings from birth to death. Therefore, it is very Perhaps the so-called singularity is an 'embryo' when the universe was conceived in space at the beginning of its birth. When it matures, the big bang will give birth to a new universe, and it will continue to grow as time goes by. After it matures, it begins to die out gradually.”

"It seems that the source of this parallel universe may have been proposed by Einstein?" the black man asked curiously.

Yan Xin nodded: "I don't dare to speculate, after all, Einstein has his own ideas! My intelligence is not as developed as his, reaching 15.00%!"

When everyone heard what Yan Xin said, they all laughed again.

Aiming at the problem of quantum gravity explaining the origin of species, Yan Xin put forward several viewpoints, and then began to talk about the life calculation of protons and the basic degrees of freedom of M theory.

These three physical problems do not have a fixed solution.

Yan Xin is only explaining the theory of objective existence.

And if the technology of human beings in the future can really reach that step.Then it is only a matter of time before the answers to these questions are completely revealed!

What is proton lifetime calculation?
How long is the lifespan of a proton?

It used to be thought that protons, unlike neutrons, would never break into smaller particles.This was taken as truth.

However, in the 70s, theoretical physicists realized that the various possibilities they proposed could become "grand unified theories"!
The theory combines all forces except gravity in one furnace, and the theory implies that the proton must be unstable.Given enough time, and very occasionally, protons will split.

What is the proton way?

Proton lifetime τ_p=1.39×10~(31)yr
Because the proton life is very long, it is estimated to be about 1031 years, which means that only one proton will disintegrate in 1031 protons in one year.In order to eliminate the interference of cosmic rays, the entire experiment must be carried out deep underground.

All the experts here are amazed!

Unexpectedly, if you want to calculate the life of protons, you also need to avoid the interference of cosmic rays?

"In this way, it is only a matter of time before the calculation of proton life is solved?" Dean Ma Nan asked with a smile.

Yan Xin nodded: "That's natural!"

Seeing that the clock on the wall was pointing to noon, Yan Xin motioned to continue the lecture on the basic degrees of freedom of M theory in the afternoon!

"You are really amazing! I think now that your IQ has already surpassed Einstein!"

In the cafeteria at noon, Lin Hui said with a smile.

"You can pull it down! I'm really not that good!" Yan Xin patted this girl's head.

"Are you planning to continue using the basic degrees of freedom of M theory this afternoon?" Lin Hui asked curiously.

Yan Xin nodded.

Yan Xin always felt that something was going to happen.

But what it is, he really doesn't know.

In the afternoon, after Yan Xin finished talking about the basic degrees of freedom of M theory, he took Lin Hui back to the apartment.

Presumably Qi Wanning knew that Yan Xinhui brought Lin Hui back to live, so she left early.

Xu Shi talked about the reason for a whole day, but Yan Xin's head hurts a little, and she really wants to sleep.

"What's wrong? Is something uncomfortable?" Lin Hui asked with concern.

"I don't know why, but my head hurts so much!" Yan Xin said while hugging Lin Hui.

Lin Hui touched Yan Xin's forehead curiously, and was startled!
Why is Yan Xin's forehead so hot?
"You have a fever! You lie down first, I'll go downstairs and get you some antipyretics!"

After speaking, Lin Hui helped Yan Xin into the house, covered Yan Xin with a quilt, closed the door and rushed out.

Lying on the bed, Yan Xin's head was sweating profusely.

Yan Xin herself didn't know what happened.

I just feel that everything in front of me is so fake, I can see it, but I can’t touch it
What happened to yourself?
Drowsy, Yan Xin fell asleep.

Yan Xin had a dream