Wan Changchun's words made Lin Dong, Mr. Tian and others confused for a moment. What did you understand? What was going on?

"High dimensions! Time! Dimensions and timelines!"

Wan Changchun repeated the sentence excitedly, Lin Dong and old Tian were stunned, and then they also showed Wan Changchun's happy expression just now, looking like he suddenly realized. ⊙

"Yes! Why didn't I expect this!" Old Tian patted his thigh and complained to himself. He was the first to know about how the Earth base counterattacked the Gaias. When Su Yichen sent a message from Pluto, he was the first to know, but at that time he was only immersed in surprise. In addition, the war had just ended, as the main leader of the Northwest Base, Mr. Tian still had many tasks that needed to be arranged immediately.

In fact, it was not only Mr. Tian, ​​but Lin Dong the same thing. Moreover, after contacting the desert base, he learned that Wan Changchun and Hu Zhijun suddenly appeared. After receiving this news, Mr. Tian and Lin Dong almost immediately decided to leave for the desert base, thus ignoring the important point.

"What dimension and timeline? Xiao Wan, what are they talking about?" Seeing the three old men excited and even talking with joy, Hu Gang was confused by the side and couldn't help but ask Wan Yi next to him quietly.

Wan Yi didn't understand why they were so excited. As a senior intellectual, although Wan Yi's major was just address exploration, he also knew about the physical foundation. He thought about it and said to Hu Gang: "Dimensions are actually easy to understand. According to Einstein's theory of relativity, what we face in life is three-dimensional space, and then time is added to purchase into four-dimensional."

Hu Gang still didn't understand after hearing this, and Wan Yi said: "Most of the 'four-dimensional space' mentioned in daily life refer to the concept of "four-dimensional space-time" mentioned by Einstein in his "General Relativity" and "Special Relativity". According to Einstein's concept, our universe is composed of time and space. The relationship between time and space is longer, wide and tall than the ordinary three-dimensional space in the architecture of space. The axis of time is an imaginary axis of the axis of imaginary value. Simply put, zero dimension is a point, no length, width, and height. One dimension is a line composed of countless points, only length, no width, and height. Two dimensions are surfaces composed of countless lines, with length, width and height. Three dimensions are bodies composed of countless surfaces, with length, width and height. Dimensions can be understood as directions. Four dimensions have more time..."

Wan Yi copied the book and explained patiently to Hu Gang, but the more he said that, Hu Gang became more confused as he heard it. After a long gesture, he couldn't figure out what the other party was trying to express.

"Hehe, the theory is not understood this way. If you continue to explain this way, I will make you confused." After discussing with Lin Dong and Old Tian for a while, Wan Changchun noticed that Wan Yi was explaining to Hu Gang what dimensions are and what time is. Seeing Wan Yi gestured and unable to explain it, and Hu Gang became more and more confused as he listened, he couldn't help but laugh.

"Grandpa, I..." Wan Yi's face turned red. He was interrupted by Wan Changchun's wave of his hand as soon as he was about to say something.

"Although you are studying science, you are not physics, and your work has nothing to do with this aspect. It is good to be able to memorize the theories in the textbook. If you have a specialty in learning, and there are ways to teach, let me, the stinky old man, explain it to Xiao Hu."

Wan Yi nodded repeatedly after hearing this. As for Hu Gang, of course he was willing to listen to Wan Changchun's explanation, while Lin Dong and old Tian looked at each other and listened attentively.

Wan Changchun changed his way and began to explain what three-dimensional space is and what time is. Wan Changchun was originally a professor of Shimen Science and Technology. Teaching is his job, and like the teachers of their generation, the lectures are completely different from those of today's teachers. They are easy to understand, combine theory with practice, and everything is told in a leisurely manner.

In a few simple sentences, Wan Changchun clearly explained three-dimensional space, time, and four-dimensional space in Einstein's theory of relativity. After hearing this, Hu Gang suddenly realized and understood the truth.

"Then Mr. Wan, what did you and Mr. Lin, and Mr. Tian just said..." Although Hu Gang understood, he still didn't know why they had a sudden enlightenment just now, and couldn't help asking.

"Haha, I'll ask you a question first." Wan Changchun asked with a smile.

"Please, please." Hu Gang nodded quickly.

Wan Changchun asked with a smile: "In our era, there was an assumption. It is estimated that many people should know this assumption now. In fact, to be precise, it should be a theoretical result proposed by Einstein in the theory of relativity. Simply put, Einstein proposed that the faster the speed, the slower the time. If the speed reaches the speed of light, then time will stop, and the speed exceeds the speed of light, and you will see the past."

"I know this!" Hu Gang nodded repeatedly and said, "I have heard of this principle, and many science fiction novels, including movies, have also used this theory. According to Einstein, as long as people can exceed the speed of light, they can travel time, right?"

"It's almost the same, but real time travel is impossible." Wan Changchun smiled and corrected this. When Hu Gang was stunned, he explained: "Time is actually a dimension, and real time travel is impossible. There is a philosophical saying that a person cannot step into the same river twice, which is enough to prove the fallacy of time travel."

"A person cannot step into the same river twice? No, how is this possible?" Hu Gang was confused by Wan Changchun. Lin Dong smiled and took the initiative to take the conversation and briefly explained the meaning of this sentence. In fact, the reason is very simple, because the river flows. When you step into a river for the second time, although it looks like a river on the surface, in fact, the river has changed at the moment when the river flows. The river at this time and the river afterwards cannot be exactly the same. Time is the same. People often use the long river of time to describe the passage of time. This adjective just proves the characteristics of time, just like a river, the difference is just the speed of the flow rate.

Wan Changchun nodded slightly. Lin Dong's explanation was very clear. Seeing that Hu Gang had already understood the truth of this sentence, he continued: "Time is the same, and time is relative in dimensional space. According to Einstein's theory, when you fly in a light-speed spacecraft, time will stagnate, but in fact, from a narrow perspective, time is still passing for you, but this kind of passage changes due to the breakthrough of the dimension, and compared with normal space people, time is normal, and the two correspond to each other. This will produce the result of crossing time."

"I seem to understand a little." Hearing this, Hu Gang's face showed a sudden enlightenment, and he tentatively said: "Old Wan, what you mean is that the reason why you and my father disappeared from the Earth Base for nearly 40 years is that these 40 years are just a change of time for you, or you were in a special environment where time was paused, and the time outside was normal, so this result was caused, right?"

Wan Changchun, Lin Dong still had Mr. Tian laughed at the same time when he heard this. Mr. Tian nodded and smiled: "Okay, Xiao Hu. I didn't expect you to have some understanding and guessed it well. However, according to our view, it should be that Mr. Wan and your father were in a higher dimensional space higher than our normal three-dimensional space. Because only in this way, the timeline will undergo unpredictable changes in the high-dimensional space, which can also cause the result of a sudden passing of decades. Of course, we are just guessing this point, but from the moment, the possibility of this guess is very high."

"Yes. I think this may be almost true." Lin Dong interrupted: "Xiao Su obtained the basic authority of the Earth Base through the Pluto Base, and Xiao Su has confirmed through Xiao Su that the Lant civilization's Earth Base has high-dimensional strike capabilities. This is enough to prove that the Lant civilization has mastered this earth-shaking technology. Only in this way can the encounter between Mr. Wan and Comrade Hu Zhijun reasonably explain. In addition, Xiao Su's experience inside the Earth Base was probably related to high-dimensional technology."

Wan Changchun and old man nodded slightly, expressing his agreement with Lin Dong's assumptions and even attach great importance to high-dimensional technology. All the three of them were filled with extreme excitement and expectation.

Wan Yi didn't understand very well, and Hu Gang didn't know much. The three old people value high-dimensional technology as they seem to be. It can be said that the three old people are extremely looking forward to obtaining the secret of high-dimensional technology at this moment.

As one of the most steepest scientists on the earth, whether it is Wan Changchun, Lin Dong or Tian Lao, they all know the value of high-dimensional technology. Compared with ordinary technology, high-dimensional technology has surpassed the scope of ordinary technology, and this technology has even surpassed the imagination of humans, including ordinary cosmic civilizations, and reached a god-like height.

Once the high-dimensional mystery is mastered, humans will no longer be afraid of any cosmic civilization, and no cosmic civilization can pose a threat to humans. Even if the daily technology of the Earth civilization is still in the current situation, as long as we have this technology, even if the Gaias make a comeback, the Earth civilization will easily defeat the other party.

The power of high-dimensional technology is indescribable. After mastering high-dimensional technology, the spacecraft can freely travel from various dimensions, and even easily throw bombs and other weapons into the opponent's spacecraft through the advantages of the dimension and then detonate. From this point of view, let alone the Gaias, even a more powerful civilization cannot resist. Just imagine, when you can't find the other party's existence at all, but the other party can easily discover your position, and even detonate in key parts of your spacecraft through your spacecraft defense.

This kind of war has surpassed ordinary wars, or it is no longer a war. This is God's blow to mortals, and mortals have no power to fight back. In addition, they have mastered the mystery of high-dimensionality, and the length of life is no longer an obstacle to humans. Time is just one aspect of the dimension for humans, so eternal life has also become a part of reality.

Although Wan Changchun is in good spirits and is much better than the injured Hu Zhijun, he is older after all. After a heated discussion and the situation he learned about just a few hours ago, his expression gradually became tired.

The future is long, so there is no rush. Under Lin Dong's dissuasion, Wan Changchun finally accepted their arrangement and went to rest. In the following days, Hu Zhijun's injuries gradually healed under careful care. Old Tian arranged for Hu Gang to accompany Hu Zhijun more to fulfill his son's filial piety. At present, due to the arrival of him and Lin Dong, the main authority of the natural base was taken over by Old Tian. A few days later, when reinforcements from the Northwest Base arrived one after another, Old Tian arranged them outside the Earth base to prevent accidents.

Su Yichen and Luo Yan, including the squadron of the Earth's Space Fleet, had already rushed back from Pluto on the way back to Earth. Although the sudden retreat of the Gaians saved the Earth's civilization from catastrophe, it also brought an end to this invasion war of foreign civilizations.

However, the departure of the Gaians caused the entire earth's power to fall into a state of vacuum. The earth's government, or the pseudo-government organized by the Gaians, first ran according to inertia after their Gaian master disappeared for some time. But as time passed day by day, the earth's humans finally discovered that the sword of Damocles that had been hanging above their heads had disappeared.

Not only that, Raymond Anthony's disappearance also played a certain catalytic role, and everyone gradually turned from shock, doubt and doubt to surprise, excitement, and also began another chaos.

People's greed and yearning for power cannot be erased from ancient times to the present. When the pressure above disappeared instantly, these things that emerged from the bottom of their hearts quickly expanded. A few days later, the entire earth was in chaos, and all kinds of forces emerged overnight. Whether it was the resistance forces at that time, the surrender faction, or even the officials of the pseudo-government of the earth, in order to protect their lives, rights, wealth, and the future, they launched a series of cruel struggles. The just-end war ignited again in the countries on earth, and became more and more intense, almost spreading to the world.

The three major countries that have not surrendered from the beginning to the end, China, the United States and Russia are better. At least these three countries still maintain a certain degree of military power. Coupled with the legitimacy and authority of the government, they temporarily suppressed the turmoil in some areas of their country. However, no matter which country in the three countries cannot suppress, it is powerless to do anything about the areas that cannot be suppressed by all forces. Even the US government's total sacrifices from the president and senior government officials, the current committee is just a temporary agency. The politicians who had previously been hiding in the congresses could not wait to jump out after the war, trying to use legal permission, including wining over force, to compete for legal leadership.

In this case, the only remaining Earth Space Fleet Squadron is a force that can determine the future destiny of the earth. The top leaders of China, the United States and Russia have reached a private agreement. All parties first control and maintain the sphere of influence, and then wait for the fleet to return, because everyone knows that when this fleet returns to Earth, this overwhelming global force can restore the earth to true peace. (To be continued, please search for Astronomy, the novel is better, updated and faster!
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