Came to the Shanghai Changlong Happy World, where the voices of people were boiling, which surprised Li Mu and the two of them for a while.

"Is this the whole Shanghai market coming?"

"Probably......"

Looking at the long queue at the door, God knows that when you get in, it will be the Year of the Monkey.

It's barely nine o'clock in the morning.

But fortunately, Li Mu has a lifetime membership card and can take a special channel.

Then, he took Yun Rongshang through a special passage and entered the park directly.

The staff at the door recognized him immediately when he came in.

After all, Li Mu's appearance, don't say that they have seen it on the Internet a long time ago, and their leaders have already told them to remember Li Mu's appearance.

So just like that, Li Mu and Yun Rongshang entered the amusement park and started playing.

First of all, we came to the entrance of the roller coaster.

This roller coaster is named the Mulong Roller Coaster, the name is very simple, it is to take the names of Li Mu and Changlong, of course, there is also a meaning after the combination, the shepherd dragon.

It means that this roller coaster of theirs sits up as if it were riding a dragon.

It's just that looking at the exaggerated track, everyone wants to say in amazement: "I'm afraid this is really riding a dragon, right?" ”

With such an exciting track, you will lose half your life if you take a trip, right?

"Boom~"

A speeding roller coaster flies off the tracks.

Then there was the incessant screaming: "Ahhh

When the tourists who were queuing up saw this scene, many of them began to retreat.

It's going to scare people to death, right?

But just at this time, a few foreigners happened to come out of the exit passage, and their faces were full of excitement.

"Generous Crab! It's definitely the most thrilling of the dozen or so roller coasters I've ever ridden, and that spiral vertical descent is so thrilling! ”

"The Jingdaka roller coaster doesn't have this thrill!"

"Let's go sit again."

“gogogo！”

Then these foreigners ran to the back to line up again.

Although most of the tourists around him couldn't understand what the foreigner was saying, they could also hear the excitement in their tones.

So the tourists who had just quit thought about it again, and finally continued to line up.

However, Li Mu and Yun Rongshang understood.

Yun Rongshang looked at Li Mu: "Are you afraid?" ”

Li Mu: "...... Just kidding, I'm a designer, how can I be afraid? ”

If he says this, I'm afraid others will laugh at him.

Yun Rongshang sneered: "Okay! Don't scream later. ”

"Surely not."

……

"Ah......h

As the speeding roller coaster went up and down the track, Li Mu helplessly looked at Yun Rongsheng who was screaming desperately next to him.

Even his wrist was grabbed by Yun Rongsheng who was nervous just now.

Hold on tightly.

I can't break free,

That's it?

Just now Yun Rongshang asked him if he was afraid, and he thought that Yun Rongshang was not afraid at all.

Instead, he ......

He didn't feel it at all.

This is probably also the role of the mind computer, because the brain computer can regulate his nerve currents, so that his hormone secretion can be controlled, so that his body can always maintain a state of balance.

He didn't really feel anything except for the tightness in his chest during the rapid decline.

"Am I only fit to ride the merry-go-round?"

He couldn't help but think sadly.

"Ah~"

There was another scream in his ears, and Li Mu felt that his wrists were about to be scratched red.

Forget it, if she lets go, Yun Rongshang is afraid that she will be even more panicked.

Finally, a few minutes later, the roller coaster came to an end.

After getting off the roller coaster, Yun Rongsheng's face turned red with excitement: "Wow! It's so exciting! Let's sit again! ”

Li Mu was stunned: "You were so nervous just now, you still dare to sit?" My wrists were scratched red. ”

He flashed his wrist.

The reddened marks on it made Yun Rongsheng's face red: "It will definitely not be this time!" ”

So, they lined up again and sat again.

"The roller coaster you designed is so much fun!"

Yun Rongshang gave Li Mu a big compliment.

It's just that Li Mu looked at his other wrist that was also caught red, just now he grabbed his right wrist, and the second time they changed left and right, so this time his left wrist was also "poisoned".

"Okay, good, if you're happy."

Li Mu sighed.

In this way, they only took two roller coasters of less than ten minutes in the morning.

I'm hungry too.

At noon, I found a restaurant in the park to eat.

Talking about the excitement of the roller coaster, Yun Rongshang seemed to have endless words, and Li Mu was the best listener on the side.

I was helpless in my heart, so I came for nothing.

"It's a pity."

It's just that, as he spoke, Yun Rongshang sighed softly again.

"What a pity?"

"I'm leaving around August 10th, and I won't be able to play again."

Li Mu suddenly realized that Yun Rongshang was about to officially enter Oxford, so she had to go to the United Kingdom next month.

"There will always be a chance in the future, after all, there is still a long time." He smiled and reassured.

Yun Rongshang sighed, "That will be a long time later." ”

"Oh, by the way, I don't know where you'll be in graduate school."

Hearing this question, Li Mu remembered that he didn't seem to have told his senior sister that he was going to Oxford too.

So he smiled and said, "Guess." ”

"Don't sell it, say it quickly!" Yun Rongshang gave him a blank look.

"Okay, okay, I'm ...... too Oxford. ”

"Ah???h

Yun Rongshang was stunned for a moment.

……

Time passed quietly.

A few days later, Li Mu got on the plane home, ready to stay at home for a while.

However, not long after returning home, Academician Yuan Xiang, the chairman of the Chinese Mathematical Society, who had participated in his mathematics graduation defense, called him and invited him to come to Beijing in mid-August to attend the Chinese Mathematics Academic Summit organized by the Chinese Mathematical Society.

This domestic mathematics summit will invite the vast majority of mathematicians in China to participate.

And Li Mu, as the most famous mathematical genius in China, will certainly not forget to invite him at this kind of meeting.

In addition, he was invited to the stage to give a one-hour plenary speech.

It's just about what to talk about......

Li Mu thought about the twin prime conjecture that he was still studying......

Forget it, then I will casually talk about his current thinking about the twin prime conjecture.

It's just a pity that this meeting started on August 13th, which means that he has to go a few days earlier, and he has not been at home for a month before he has to leave.

……

August 9th.

At night.

The door was opened, and the old mother, Qin Lan, walked into Li Mu's bedroom with a glass of hot milk and a plate of cut fruit.

At this time, he was still studying the twin prime conjecture.

"Take a break, drink a glass of milk and eat some fruit."

Mother's words of concern brought Li Mu back to his senses.

This scene made him slightly stunned, this scene was very familiar, and it seemed to have happened many times.

But then, he smiled again.

Probably because many nights when he was in high school, his mother would bring him a glass of milk and a plate of fruit like this.

"I'm not tired, thank you, Mom."

"You'll have to get up early tomorrow to catch a plane, so let's go to bed early." Qin Lan said.

"It's okay, I'll study it for a while and then rest."

Li Mu waved his hand and said.

"Okay." Qin Lan could only nod.

The child is already older, and he can't say much.

Instructed Li Mu to drink the milk as soon as possible, and then she left Li Mu's bedroom.

Li Mu picked up the cup and was about to drink it.

But suddenly, he was stunned.

The cup has a clock-like pattern on it, except that there are only five numbers inside, 1, 2, 3, 4, 5.

However, he was sensitive to numbers, but for a moment he thought of the [finite field] in mathematics.

Then, he abruptly turned his head to his research on the twin prime conjecture on scratch paper.

"If you combine finite domains......"

For a moment, he was in no mood to drink that glass of milk.

Picking up the Pike 51, he quickly deduced it.

Until a moment later.

His eyes lit up: "In this way, it is really possible!" ”

A broad road to prove the twin prime conjecture appeared in front of him.

……

(End of chapter)