It's reasonable for me to have a two-way foil for a second-level civilization, right?

Fang Xu's words hit everyone's hearts like a heavy hammer.

Reversing time and reversing cause and effect will cause countless paradoxes.

Whether it is science or philosophy, it will be a subversive storm!

Lu Yongchang took a deep breath, his eyes revealing a thoughtful look.

He raised his hand and waved it lightly: "Be quiet, let me think about it."

The noisy command center became quiet again.

Lu Yongchang raised his head and looked at the holographic clock interface in the distance.

The pointer moves clockwise every minute and every second, and the long river of time flows forward evenly.

Suddenly, the pointer started to reverse, and the river of time began to flow upstream!

The whole universe has changed!

The causal relationship is no longer maintained, a person walking on the road will die suddenly, the reason is that a flower pot will hit him 10 minutes later!

Lu Yongchang shook his head vigorously, and threw this extremely terrifying picture out of his head.

"To date, we have never observed this phenomenon happening."

Lu Yongchang said word by word: "Perhaps, there is some kind of self-correction mechanism in the universe that we don't understand, which can prevent this from happening."

"or……"

"Parallel Universe Theory."

"As long as it affects parallel universes, there will be no such unbelievable scenes."

When he said these words, Lu Yongchang only felt his heart tremble slightly.

Could it be that……

Lv Yongchang collected his mind and suppressed the unreasonable conjectures in his heart.

He raised his hand and gently rubbed the slightly painful temple.

"Don't think about it so much just yet."

"What we can think of, they can think of too."

"Since the universe has run without any problems until now, let's not worry about it."

"Think about the problem of a specific experiment."

"They..." Fang Xu murmured with a dark face.

Who are they?

They are naturally those higher civilizations.

Sweeper, pastoral...

Compared with human civilization, these advanced civilizations seem to be more likely to achieve such a "feat".

Thinking of Fang Xu here, he suddenly felt a chill coming from behind.

Chapter 669 Traces left by tachyons!

A month later.

After repeated improvements, the perfect experimental plan was successfully released.

The entire experimental process was placed on a specially customized small starship.

The overall shape of this experimental ship is spindle-shaped, and the outer part of the experimental ship is surrounded by circles of ring-shaped facilities.

These circular facilities are the orbits of particle accelerators.

According to the experimental plan, the Academy of Sciences will conduct another high-energy particle collision experiment under the state of superluminal voyage.

Due to the small size of the particle acceleration track on the experimental ship, the acceleration energy provided is relatively weak, so most of the particle acceleration work is placed outside the starship.

Protons will be accelerated to (1-1/10^40) the speed of light under the ultra-large particle accelerator built by countless ship-borne drones.

These particles will then be sent into orbit around the experimental ship and maintained at their speed under the action of a magnetic field.

Next, the experimental ship will enter the curvature sailing state driven by the curvature engine.

In order to prevent interruption of communication, the maximum speed of navigation is set at 10 times the speed of light.

The last step is also the most critical step.

While the particles are colliding, several high-energy laser generators will release high-energy lasers to the collision area.

The purpose of doing this is naturally to provide energy for the so-called tachyons as much as possible and slow down their speed so that humans can observe them.

"Attention all units!"

"The tachyon observation experiment starts now!"

"Activate the magnetic field of the shipboard drone, and the particle acceleration will begin now!"

After several inspections to confirm that there were no omissions, the experiment was announced to begin.

……

Same as the previous particle acceleration, the entire acceleration process takes about a year.

One year later, the earth calendar is 3610 years.

"Professor, the proton has successfully entered the experimental ship's orbit."

The moment the electronic synthesizer sounded, the atmosphere in the laboratory suddenly became tense.

The most critical moment of the whole experiment has arrived!

"Start the curvature engine and drive the experimental ship into the state of curvature navigation!"

Lu Yongchang gave the order in a deep voice.

The next moment, the majestic energy brought by the annihilation of antimatter poured into the curvature engine, and the positive and negative gravitational fields were rapidly generated!

The experimental ship, after a short wait, disappeared in front of everyone's eyes!

"The experimental ship successfully entered the curvature state, the current speed: 1.1c!"

"The communication status is normal, the orbiting proton is running normally, and the collision chamber is working normally!"

Listening to the announcement not far away, Lu Yongchang let out a long sigh of relief.

He didn't speak, but looked up at the holographic projection directly in front of him.

Over time, the above numbers keep increasing.

1.2c, 1.5c, 2c...

In the end, when the number stayed at 10c, Lu Yongchang's eyes instantly became sharp!

"The particle collision experiment has officially begun!"

"High-energy laser generation unit, start warming up!"

……

Two protons are driven towards each other by the magnetic field.

Eventually, they managed to meet in the central area of ​​the collision chamber.

A large amount of energy is released, and a miniature black hole appears.

But soon, the miniature black hole without supplies evaporated instantly, and dozens of high-energy laser beams hit the small collision area straightly.

The collision experiment is over.

A large amount of data poured into the [Earth] central computer from the communication link, and with the assistance of Zero, the initial screening of the data started quickly!

Different from the purpose of previous particle collision experiments, this time, the main data analyzed by the Academy of Sciences is the running speed of various particles produced after the collision.

Time passed bit by bit, and the particle data produced by the collision were eliminated one by one-their speed did not exceed the speed of light.

"seem……"

Fang Xu looked at the collision data that had bottomed out, raised his hand and patted Lu Yongchang's shoulder lightly, and comforted softly: "There seems to be no tachyons."

"We seem to be on the wrong track."

Lu Yongchang's eyes were still sharp, staring at the holographic projection in front of him: "No! It's not over yet!"

"Tachyons must exist!"

It is not so much self-confidence as it is trust in the technology tree.

Fang Xu sighed softly, shook his head as if he wanted to say something, but was interrupted by the harsh siren!

"Drip! Drip! Drip!!"

"Anomalous data detected!"

The corners of Lu Yongchang's mouth rose slightly, showing a faint smile, and at the same time, he gave Fang Xu a smug wink at his side.

As for Fang Xu, he just stayed there in a daze, his eyes filled with deep shock.

The holographic projection screen changed rapidly, and the anomalous data highlighted were clearly presented in front of everyone.

"gamma rays?"

Looking at the data in front of him, Lu Yongchang raised his eyebrows: "In this set of abnormal data, there are a total of two gamma rays running in opposite directions. At the same time, the intensity of the gamma rays has changed from strong to weak."

"What... do you mean?" Fang Xu frowned and asked in a low voice, "Isn't it just ordinary gamma rays?"

"No, this is not an ordinary gamma ray!" Lu Yongchang seemed to have figured out something, and his expression suddenly became vivid!

"I get it! I get it!!"

"Tachyons! This is the trace left by the movement of tachyons!"

"We found it!"

Lu Yongchang's reaction left all the academicians present at a loss.

"wait wait wait!!"

Fang Xu stretched out his hand and grabbed the ecstatic Lu Yongchang: "You tell me clearly first!"

"What trace? How is this the trace of tachyon movement?!"

Lu Yongchang took a deep breath, suppressed the excitement deep in his heart, and explained carefully.

"Before explaining, I need to clarify two concepts."

"First, tachyons run faster than the speed of light."

"Secondly, during the process of movement, the tachyon continuously releases energy outward, and at the same time, its running speed will become higher and higher."

"Understandable?"

After getting an affirmative answer, Lu Yongchang organized some words and said again: "According to the current experimental data, the way tachyons release energy is to release gamma rays outward."

"And the speed of gamma rays is the speed of light."

"That creates a phenomenon."

"The gamma rays it releases cannot catch up with it!"

Lu Yongchang rubbed his hands excitedly, and his speech speed increased a bit: "Imagine, a tachyon, releasing gamma rays, passing by your eyes at the same time."

"It's so fast that you can't see it at first."

"You can only see the gamma rays it emits when they pass by you."

"This leads to an interesting observational phenomenon."

"Two gamma rays traveling in opposite directions!"

"One gamma ray is chasing the direction of the tachyon, and the other is the gamma ray released by you before. The two running directions are opposite!"

"At the same time, due to the Doppler effect, these two gamma rays will show obvious redshift and blueshift!"

ps: Thank you Lu Yinyang from Eternal Immortal Village for your certification!

Chapter 670 The Voice from the Pastoral Age

As Lu Yongchang finished speaking, several researchers quickly turned their attention to the two sets of abnormal data in the holographic projection.