Gan Chongzhi escaped from prison with a large number of criminals.

I took out a car key from the dead prison guard, went to the parking lot to find the sound, got into the car, and went home.

On the way to the city, Gan Chongzhi couldn't help but look up at the sky.

At this moment, he suddenly forgot that he was driving, and almost hit the accelerator on the tree.

"That's ......"

He looked at the white ribbon in the sky in obsessed and frightened.

At first glance, it looks like an unusually large white cloud, but if you look closely, you will see that the slender white cloud divides the sky in two.

Gan Chongzhi's heart pounded.

"Ring !!"

Su Yunan's prophecy hit again.

years were torn apart and became a magnificent star ring suspended above the earth.

This is the first time in human history that the star rings have been observed from the surface of the planet, and the newborn star rings are extremely beautiful and spectacular, like a ribbon wrapped around the waist of the earth by the hand of God.

Originally, it was impossible for the earth to have such a beautiful scene, because the mass of the earth was not enough to produce star rings, but because of the strange characteristics of the "year", the earthlings were also fortunate to see astronomical miracles.

"But that's not right......"

Gan Chongzhi's scalp tingled again: "Under the action of tidal forces, the star ring will definitely condense over the equator of the planet...... But this is Uptown, located at 30.4 degrees north latitude, far from the equator, why does the star ring appear directly above here?! ”

A terrible guess appeared in Gan Chongzhi's mind.

Instead of choosing to go home, he slammed the gas pedal to the Uptown Planetarium.

"Lao Gao! Foucault pendulum! Is the Foucault pendulum still moving?! ”

Gao Zhengyi was stunned: "Why did you come out?" ”

"The guards are dead."

“……”

"Show me the data from Foucault! Fast! ”

"What's the use of you watching...... Well, you see. ”

The Foucault pendulum looks like a giant pendulum, hung from the ceiling with a thin 67-meter-long thread and a weight hanging at the bottom end.

Because the top end has very little friction and the bottom end has a lot of weight, a person only needs to toggle it once, and he can continue to swing for days.

According to the basic common sense of human beings, under the action of inertia, a pendulum should only move back and forth on a line, just like a swing, no matter how long the swing takes, as long as there is no external force, there will be no left and right deviation.

But in 1851, Foucault created this massive installation that invited many scientists to see it.

Then in full view, the pendulum shifted.

In this way, he proved that the earth is always in a state of rotation and will exert a Coriolis force on the pendulum, interfering with its movement.

The Upper Town is located at about 30.4 degrees north latitude, and the Foucault pendulum will complete a circle in about 47 hours, returning to the original starting point.

It is not difficult to understand that this time decreases with increasing latitude, because the higher the latitude, the greater the angular velocity, and when you reach the South Pole, it is exactly 24 hours.

"Hell yes! Hell yes! ”

At this time, Gan Chongzhi looked at the data recorder next to Foucault in horror.

A small recorder was installed next to the pendulum to monitor the swing of the Foucault pendulum. At this time, Gan Chongzhi browsed last night's swing record.

The speed at which Foucault swung in circles was visibly slower! Now it has been 55 hours since the last pendulum, but the pendulum has still not completed a turn, back to the original origin!

That's far more than the previous 47-hour cycle!

This means......

Gao Zhengyi swallowed his saliva and asked in disbelief: "The latitude of Shangcheng has become lower?" ”

"I'm afraid it's not just about getting lower." Gan Chongzhi pointed to the data on the recorder, "You see, the offset degree of Foucault's pendulum has been reset to zero, and this situation will only appear in one place......"

"Equatorial !!" Gao Zhengyi exclaimed, "Do you know what you're talking about?" You're saying that the Earth's magnetic poles and rotation have shifted by a full 30 degrees! Do you know how much of a geological hazard this will bring? ”

"We've all seen the crazier ones, so accept the reality."

Gao Zhengyi was silent, and he looked at his hands.

Oh, yes.

What's even crazier, I've been through it last night, and what else can't happen.

"nnd, let that kid say it, I'm afraid that kid didn't travel back from the future, or is it a prophet who predicts the future?" Gao Zhengyi sighed.

"Even a prophet can't save the damned ghost." Gan Chongzhi felt heavy, "It's too late now, the year has turned into a star ring, and firing artillery at this distance will only poison ourselves." As for the deflection of the geomagnetic poles...... The communication was completely cut off, and there was nothing we could do about it. ”

Gao Zhengyi patted Gan Chongzhi's shoulder: "Look at the point, you did your best." ”

"Do your best...... Hehe......"

Gan Chongzhi smiled bitterly, facing Gao Zhengyi, a year-old friend, his long-suppressed emotions finally couldn't be controlled anymore.

"I'm not reconciled!" Gan Chongzhi roared and cried bitterly, "Why, why? It was as if it had been programmed, and he didn't stop at the billions of planets he passed by, but chose Earth as his final destination...... Why? ”

"Perhaps...... What treasure is it looking for on Earth? ”

"We know! We knew all this in advance, and we could have changed it! Those people didn't have to die! Gan Chongzhi recalled the devastation on the way back.

Uptown, once one of the most prosperous cosmopolitan cities, a symbol of youth and progress, is now riddled with holes.

The side of the road is full of ordinary people crying with the stumps of relatives and friends, most of them are ordinary migrant workers who come here to pursue their dreams, they have no roots, and they just want to pursue a better future.

But the future is shattered.

They also died.

"Why!!"

He cried until his voice was hoarse, and his tears were a little red.

"Why!!"

Pure scholars do not understand the complexity of the world, and even the most intelligent brain, some things are destined to be incomprehensible.

Gao Zhengyi hugged him and patted his old friend on the back to comfort him.

"We are human beings, we can change the world with agency, and you have done it. But we are only human beings and must accept the fact that we are limited. You don't have to blame yourself for it. ”

"I hate...... I hate myself...... I don't understand...... I ......"

"Lao Gan!" Gao Zhengyi shook his voice, "This is not the first failure in your life, don't let it crush you!" ”

"If I don't collapse, what can I do...... Can I still ...... What else can you do......" Gan Chongzhi lost all his strength.

"If you can recover, you can always recover, didn't you almost be persuaded to quit in college at the beginning? But you catch up, and you always catch up. ”

“……”

Gan Chongzhi was silent.

The two hugged each other without saying a word.

And at this moment, an embarrassing voice came from the door of the planetarium.

"Uh...... Aren't we here at the wrong time? ”

Du Mingyue and Nie Haiyang looked awkwardly.

The two of them hugged ...... Taiji is full of emotion.

Nie Yao was afraid that the world would not be chaotic, so she immediately took out her mobile phone and took a photo: "Director Gao! 5 cents to buy a testimony of your friendship! No bargaining! ”

Gao Zhengyi couldn't cry or laugh: "Why are you here?" ”

Du Mingyue was colored, pasted the logo of the major general of the Air Force on his shoulder, and saluted:

"We're looking for Su Yunan."