At the same time, Wu Chen swept across a direction with some emotion, and after a moment he put aside the appearance of the second earth god. He was listening to a class, yes, a very interesting mystery prospect course.

"The solar system is like a quiet little pond, and the universe we are in is full of dangers!"

"The earth has formed a fragile and just right ecological environment in this calm pond, so that we humans can be born and reproduce. However, the earth itself has an extremely fragile ability to resist the changes in the cosmic environment. A slightly larger meteorite, a change in the orbit of the orbit, the position and angle of the distance to the sun, the energy activities inside the sun, etc...."

"Humans survive in this extremely fragile balance, and it can be said that there is danger of destruction at any time. In the past, we were not able to change this, but now it is different. A brand new possibility has appeared!"

"That's the Tree of the World!"

"Yes, the World Tree. If the Earth also planted the World Tree, this will not only greatly improve our ecological environment, but also greatly improve the unit purpose of elemental elves. If the concentration of magic is increased, the Earth's ability to resist climate disasters and cosmic storms will also increase accordingly!"

"Study shows that the concentration of magic is related to its ability to resist catastrophic climates, and both Nia and Mars have proved this. Think about it, if the Earth has the concentration of magic of Nia, then do we still need to stay in the solar system?"

"This is not nonsense. Today, when controlled nuclear fusion technology is becoming increasingly mature and miniaturized, we can fully develop a 'planet engine' to make the earth a free planet that can travel interstellarly!"

"It's incredible? Yes, this is not a fantasy. In fact, we are now able to do this. Of course, the premise is that the Tree of World really takes root on the earth and greatly increases the magic concentration per unit area."

"Professor Liu, I have a problem here."

"Please say it!"

"I'm interested in what you're talking about planetary engines, but how do you solve the problem that the Earth won't be destroyed by a huge push in the moment when the planetary engine starts?"

"This is a very critical issue. Please sit down, this classmate!"

In the staircase classroom, an open class on mystery has completely become a science fiction content. Wu Chen has been listening to such a course recently. I have to say that it is very inspiring and from another perspective, it has given him many hints and meanings.

"Yes, the strength of the earth may not be able to bear it. The huge driving force erupted by the planetary engine at the moment of its startup. Please see..."

The three-dimensional projected blue light fell on the podium, and the three-dimensional figures of the earth were slowly rotating in the space environment. The professor was dazzled by the operation on it, and then looked at the students in the classroom, full of interest.

"Please note that it is now the moment when the simulated planetary engine is started!"

As soon as he finished speaking, one side of the earth burst out with dazzling attention. These attentions were concentrated on the side of the earth, and the force exerted was exactly the opposite of the direction of the earth's rotation.

"First of all, we want the earth to stop rotating!"

Yes, the speed of the earth's rotation is slowing down at a speed visible to the naked eye, and then the entire planet begins to tremble at a distance, like a train that is stopping movement. Within the train, there is a huge inertia, so the sea begins to boil, the earth's crust begins to move, and tsunamis and earthquakes have become a huge disaster that has affected the world.

The volcanic eruption caused by this has formed on all surfaces of the earth. Some lands are submerged, some island countries are sinking, and when the rotation of the earth completely stops, a disaster that may exterminate all mankind is not over, but is constantly deducing in a more serious direction!

Some oceans have become land and become peaks. Some lands have been flooded by the surging sea water. Even the lands that are not affected by the ocean have undergone changes like a world of change. The peaks have been leveled and the cities have been destroyed...

The temperature on the side facing the sun began to rise continuously, while the side facing the sun was falling sharply. The huge temperature difference effect between the open and dark sides was formed, and the convection of hot and cold air occurred at a severe amplitude that the earth had never had before.

"One month after the earth stopped rotating, the surface was no longer suitable for human survival. At this time, 80% of the Earth's species had become extinct and 90% of humans had also died."

"Please note that the planetary engine has begun to drive the earth out of the solar system. However, the offsetting Earth's rotation and pushing the earth out of the gravitational field of the solar system requires huge and opposite thrust to it. Please pay attention..."

On the dark side of the completely still planet, when the rotation of the earth completely stopped, the light columns ejected from the planet engines began to act on the earth itself. The dark side of the planet where the engine was installed began to sink, and a large amount of matter was squeezed out of the earth. While the earth gained kinetic energy, it was also like a loose sphere that was gradually flattening. A large amount of soil evaporated, a large number of cracks appeared, and the continental plate was devastatingly destroyed...

The earth was stripped off layer after layer, the blue surface disappeared, countless volcanic erupted, and countless materials began to escape like space...

When it finally gains kinetic energy from its solar system, it has split out countless large fragments.

"The Earth was destroyed when it was able to leave the solar system!"

The staircase classroom was silent. The professor casually wiped it open and the three-dimensional projection beside him. The light blue light curtain changed again, and another different earth appeared again.

"This is the earth after planting five World Trees. After strict calculations, the planting time has been planted for more than twenty years!"

"First of all, because the roots of the World Tree are deeply rooted into the core of the earth, just like dense vegetation can greatly retain soil, the earth is far more "solid" than before. In other words, under the roots of the five World Trees, 20 years later, the structure of the earth can carry the thrust of the planetary engine."

"Please see, the engine is starting and the rotation is slowly being offset..."

"Because the concentration of magic is very high, the species on the earth are extremely prosperous at this time. It is pure green, not blue... Its energy conductivity and calming effect on extreme climates are something we cannot imagine now. Therefore, although the disappearance of rotation will have a certain impact on it, under the regulation of the Tree of the World, it is absolutely able to adapt. The living species living in it have only ushered in bad weather for a few days and several small earthquakes."

"The biggest influence is the dark side after the rotation disappears..."
Chapter completed!