Blue cats are not human, so Huang Chao will not give birth to the sigh of "Is this still human". Obviously, the refining of Chaowei Blue Cat starts from little by little in daily life. Aunt Ji's so-called "tackling key games" gave Huang Chao an intuitive understanding of the combat effectiveness of this world.

Covered in flames, the blue cat screamed and ran away from the city gate: "Burn me!" His movements were still vigorous, and then he saw Huang Chao and Fei Fei who were watching from the sidelines, and said happily: "Brother Yellow Dog, Fei Fei, come and help!" ”

Fei Fei saw his embarrassed appearance and shrugged: "I really can't help you." As he spoke, Fei Fei leaned forward, his orange tail spinning at high speed, like the propeller of a helicopter, and he actually lifted himself off the ground and flew low below the city walls.

Huang Chao has already seen that although the blue cat Feifei is very pitted on the surface, their essence is a superhero. So Huang Chao also let go of himself, shook his head and pointed his ears, and suddenly jumped up three feet high: "Brother Blue Cat, I'm here to help you!" ”

Huang Chao's punch was so heavy that he smashed it on the city wall with his momentum. The city wall he hit with his fist was bulging at that time, and a wave spread out from the position of Huang Chao's fist in all directions, which was the effect of him hitting something similar to a seismic wave......

"My hand hurts slightly." Huang Chao thought embarrassedly.

The naughty, curry, and fat boy above were swept by the ripples, and the three mice staggered back and forth, and finally a circle of dizzy birds appeared on their heads, and they couldn't help but fall to the ground.

The blue cat laughed below: "Hahaha, Brother Yellow Dog, well done!" ”

Huang Chao picked up the blue cat, like picking up a wisp of leeks from the vegetable field: "Brother Blue Cat, let's go!" ”

In the frightened cry of the blue cat, he was thrown ten meters high by Huang Chao from under the city wall, and directly pounced on the three mice who couldn't dodge. As soon as the blue cat saw that he had caught the enemy, he immediately forgot about Huang Chao throwing him directly without saying hello, and laughed: "You rats can be captured, with me and the Yellow Dog brothers, you can't win." ”

Huang Chao rushed to the city wall, stomped on the ground with both feet, plucked onions on the dry land and flew two feet high, and then he folded a few heels in the air, not only did not land, but got higher and higher, until he fell to the wall. The reason why it is so fancy is to conform to the mainstream of this world.

Naughty whispered: "Isn't this a dog meddling with a mouse?" What he said made sense, Huang Chao and the blue cat couldn't refute it.

Fei Fei finally dug through the city wall, and then found that the two eldest brothers of her group had actually stood at the head of the city to control the three members of the rat group. I can only take out a gun from behind my back, aim it at the three mice, and play my role: "Quickly hand over the answer." ”

That's right, they fought for a long time, and they finished going to heaven and earth, in fact, it was an interesting teaching game, and they successfully tackled the problem and got the answer to "how the earth was formed".

In the face of Fei Fei's threat, the mischievous trio showed a disdainful expression of death, and the blue cat had already responded to this, he grabbed the fat boy and carried him outside the city wall with the two straps of his bib pants in his exclamation: "If you don't tell me, I'll throw you down." "With the big strip of the blue cat, it is definitely said and done.

The fat boy immediately confessed: "Okay, okay, the answer is for you." You three robbers. ”

He walked to a fortress on the city wall, and knocked on the masonry wall, and the outer bricks were removed, revealing the computer monitor inside, which immediately showed the teaching screen:

"How was the earth formed?"

"The Earth was born with the birth of the solar system: the solar system began as a huge, rotating cloud of dust and gas. It is made up of hydrogen and helium produced by the Big Bang, as well as other elements that were synthesized from the interior of the planet long ago. Because the cloud rotates, gravity and inertia press the cloud into a disc, perpendicular to its axis of rotation. Most of the mass is concentrated in the center and the earth begins to heat up. At the same time, the gravitational pull causes the matter to tighten around the dust particles, causing the rest of the disc to begin to disintegrate into rings. Smaller fragments collide with each other and form larger fragments. ”

"The earth's material is concentrated in a zone about 150 million kilometers from the center. When the sun contracts and heats up, nuclear fusion begins, and the resulting solar wind empties most of the material in the disc that has not contracted and forms larger individuals, leaving only a small number of elements. Later, heavier elements gather near the Sun to form smaller, denser stars (terrestrial planets); Lighter elements are concentrated farther from the Sun to form larger, less dense stars (Jupiteroids), while Earth is the third closest planet to the Sun. ”

"In the early Plutozoic period, there were no oceans on Earth and no oxygen in the atmosphere. The asteroid is constantly colliding with the remaining material after the formation of the solar system. These impacts combined with the heat from radioactive disintegration, residual heat, and heat from the contraction pressure caused the Earth to be completely melted at this stage. The heavier elements sink towards the center, while the lighter elements rise to the surface, creating different layers of the earth. Scientists believe that the interior of the earth can be roughly divided into three concentric layers with different compositions and properties, the outermost layer is called the crust, the most central part is called the core, and the middle layer is called the mantle. If we make a visual analogy of the internal structure of the earth, it is like an egg, the core of the earth is equivalent to the yolk, the mantle is equivalent to the protein, and the crust is equivalent to the eggshell. ”

After listening to the explanation, the blue cat asked, "Then why is there only life on Earth in the solar system?" ”

There is still the next level, and the naughty three people went to guard the next level in frustration, and found that they really couldn't do the three of them. Speaking of which, the three mice are also naughty and have combat effectiveness, and Huang Chao is a group of them, everyone has good combat power, and the blue cat is called "super power", which is not just for fun.

In the next level, Fei Fei was stimulated by his big cat brother and big dog brother, and no longer hid his secrets, he took out a single cannon barrel from behind him, aimed it with the naked eye and fired it directly, his inclination angle was so perfect that the cannonball fell into the most suitable position, and the castle was blown into ruins. Looking at her masterpiece, Fei Fei smiled with satisfaction.

"Go get the answer." Huang Chao said a word, and he and the blue cat quickly found a golden treasure chest, and after opening it, it was the computer that played the instructional video.

"The Earth is the third of the nine planets in the solar system, and it is 150 million kilometers away from the Sun, a distance that allows the Earth to obtain enough energy, especially the right temperature to sustain life. Compared to other planets, the Earth has the right mass and volume to attract a pro-life atmosphere. During the formation of the earth, its inner layer is constantly moving, causing crustal movements such as volcanic earthquakes......"

"The Earth's magnetic field also resists the solar wind and cosmic rays that can kill living things, and the Earth was formed at just the right time, and after its surface cooled, the active activity of the Earth's core prompted the release of large amounts of carbon dioxide and water vapor into the atmosphere, which is essential for the insulation of the surface and the formation of water. Volcanic activity also emits a large amount of methane, which is the basis for the formation of early organisms, and the early lower organisms relied on the materials emitted by geological activities to produce oxygen for later organisms to survive, and finally formed our home today after billions of years of vicissitudes. ”

(End of chapter)