"We don't argue about the origin of the human race, but both your songs and the scientific knowledge I have show that humans were changed from monkeys, that we come from the same ancestor, and that it is foolish to kill each other. Our enemies are people from alien planets. ”

Wang Xijia felt that the words monkey and egg in the ballad did not contradict his evolutionary theory, and he didn't want to dwell on this topic for too long, so he deviated from the topic. My main purpose is to unite everyone, to give everyone the whole common imaginary enemy.

Sareman, the grey beaver and the bloodfang were silent.

It is understandable that everyone has changed from monkeys, so they have a common ancestor. Everyone can understand what Wang Xijia said about Europeans before, but as for the enemies of alien planets, this is really incomprehensible.

Looking at the ignorant appearance of everyone, Wang Xijia understood: these people still don't understand the concept of "planet".

So he started with the concept that "there are countless planets in the universe, and we live on a planet called "Earth".

This idea immediately sparked a heated debate. By instinct, everyone thinks that the place where they live is flat, how can they live on a "ball"?

Even the werewolf Lang Naduo, who had been following Wang Xika for a long time, quietly pulled up the corner of Wang Xika's clothes, "Brother, we really don't live on the ball." We live on a large land that is carried by a big tortoise. ”

This theory Wang Xika has seen it on the "map" that Lang Naduo brought before, and he is not surprised, the sky is round and the place is people's instinctive feeling, to understand that the earth is round, a series of proofs are needed, in fact, until he traveled through the 21st century, there are many people who believe that "the earth is flat, the earth is a scam", even if people have already set foot on the moon in that era.

It is difficult for modern people to understand, let alone these ancient primitive people who have no knowledge?

At that moment, he asked aloud, "You've all heard of it, right?" The earth is flat, and it is carried on the back of a big turtle. Everyone nodded their heads to indicate that they had heard of such a thing.

Only Saleman indicated that the earth was indeed flat, but that it was not carried on the back of a turtle, but by a huge whale.

The difference between a "turtle" and a "whale" may be related to the lifestyle of the Inuit. They are usually exposed to whales and have a natural adoration for this huge fish. In addition, they have lived in the polar regions for a long time and have seen the "Kunpeng Beast", a beast that is so large and boundless, so it is not surprising that the myth and legend that "the world is carried by whales" has emerged.

Myths and legends are originally a theory produced by primitive people based on their own experience and imagination in the process of trying to understand the world. The Inuit live in a very different environment than other people, so they have a different understanding of what creatures carry the earth.

Wang Xika started from the beginning to explain why the earth we live in is spherical. It begins with Aristotle's speculation about the lunar eclipse, then how Pythagoras measured the circumference of the earth based on the projection of the sun, and finally talks about Magellan's experience of circumnavigating the world in 1082 days, thus scientifically proving that the earth is round.

Everyone was still silent, and the ignorant look was like a college student listening to a teacher explain a high math problem. Wang Xijia knew that this content was very informative and needed to be digested. He stopped talking, and for a moment the room fell silent.

After thinking for a long time, the Apache leader Grey Beaver suddenly asked a question: the theory of "earth" does make sense, but if we live on a ball, why don't we fall?

"That's a good question!" Wang Xijia praised the grey beaver approvingly. It seems that this tactical Apache leader is indeed quite smart.

Regarding this issue, Wang Xika was prepared, so he told you the story of "Newton and the Apple Tree". From how Newton sat under the apple tree and was hit by a falling apple, he began to think about why the apple fell, and finally came up with Newton's three laws.

The story fascinated everyone. When the fruit is ripe, it falls from the tree, and the thrown object always falls to the ground, and the bow and arrow that is shot will also fall to the ground, which is something that everyone can observe.

Everyone always takes this for granted, but they never think about why the fruits of the world fall to the ground instead of flying to the sky.

No one even wonders why the arrows they shoot can't keep flying, they always stop. However, Newton thought about it, and this is where Newton is so powerful.

At this time, a lively discussion broke out in the room. Not only Native American Saleman, but also Bloodfang and Grey Beaver discuss Newton and gravity. Peng Lianhu, Lang Naduo, Zack, and the tengu he met later in Fusang all participated in the discussion.

Although Wang Xika had also talked about Newton's three laws in Shanghekou School before, he didn't talk about it so deeply, but after listening to it today, everyone felt that Wang Xika had told some knowledge involving the level of "universal truth". I really can't help but not discuss it.

Everyone was foaming at the mouth and talking about their understanding of the earth, Newton, and gravity, and when it came to emotion, they also asked Wang Xika for pen and paper calculations.

Wang Xijia saw that they were discussing enthusiastically, and he didn't want to interject. Just wait until they don't understand something before asking themselves. Seeing that it was not too early, he went back to his room and went to sleep.

Everyone had not slept all night, and when they woke up the next morning, their eyes were bloodshot, but their spirits were very high. That's the power of knowledge!

Perhaps before last night, these people were all obscure primitives. But after that night, they had already opened their minds. No one can say that they are uncivilized primitives anymore!

Everyone stayed up all night, but they didn't feel the slightest sleep. Wang Xika felt that this would not work, so he used his identity as the emperor to force everyone to sleep.

"All go to bed, it's an order!"

Wang Xika is still very majestic. As soon as this sentence was said, the heated discussion suddenly became a dead silence.

Seeing that his words were too hard, Wang Xijia added

"I'm resting and I'm going to continue my lecture tonight. ”

Then they went to sleep.

The next night, Wang Xijia began to give a lecture to everyone again. Today is talking about the 9 major planets of the solar system - Pluto was not counted, but Wang Xijia still added it. Because he likes the shape of Pluto.

With the experience of encountering Newton last night, it is much easier for everyone to understand today's lesson. Wang Xijia took everyone to the deck, pointed to the stars in the sky, and began to explain Einstein's theory of relativity, explaining the speed of light, light years......

So the starry sky, which was familiar in the past, also has a special meaning for everyone. At this state, everyone will believe what Wang Xijia says.

This is the best time to set up an imaginary alien enemy! Wang Xika seized the opportunity and told everyone the story of the Three-Body Man as he saw it from the science fiction novel "The Three-Body Problem."

talked about Zhizi, talked about curvature drive, and focused on the theory of "dark forest", as well as logic, and the story of Cheng Xin as a sword wielder. It's just that I'm afraid that everyone will have negative thoughts, so I didn't talk about things like "dimensionality reduction strike", "singer", and "bixiang foil" in the third volume.

Everyone has not experienced a period of rapid development of science and technology, and they can't tell whether Wang Xika is talking about reality or fiction. In short, after listening to this story, everyone felt that they were still worried about what water source they were worried about every day, and the matter of land was too small. The top priority is to rapidly develop science and technology and achieve a technological explosion as soon as possible, so as to meet the challenge of aliens.

Taking advantage of this opportunity, Wang Xijia proposed that the three major tribes in North America quickly reach an agreement and no longer fight.

The Grey Beaver, Bloody Fang, and Saleman agreed without thinking.

The three tribes reached an agreement, and Wang Xika was ready to go to the North American land again to take a look and take a walk.

After all, the threat of aliens is still early, and I just want to travel, enjoy the natural scenery, and meet the Native American elders by the way.

It seems that every tribe has an "elder", and this type of person is usually older, although he has not read much, but he has a lot of life experience. For example, the Great Elder of the Wolf Clan, Gallo, and the Elder of the Gills, Gelahard. Communicating with such people, Wang Xika always feels that he can learn something.

This time, the team to explore the Americas increased, in addition to Garrincha and Peng Lianhu left behind to guard the ship, even the gills A Snake also went to the Americas with the species.

Snake is well-informed, and has been to the Americas before, but he usually wanders on the shore, and has not penetrated deep into the heart of the Americas.

Wang Xijia's expedition team was fully equipped, with camping tents, weapons, and, of course, cameras and camcorders to shoot their own vlogs.

Peng Lianhu and Garrincha were in charge of driving the ship to the Isthmus of Panama in Central America and waiting, so that Wang Xijia's expedition could return to the big ship after exploring the Perfect Continent. There was no Panama Canal in this era, but that narrow section was still easy to find.

European colonists used to park their ships here. After all, this place is great for shipping. If he had time, Wang Xijia would also like to open a canal here, of course not now, now he only wants to explore the entire American continent, first of all, North America.

With everything in order, Wang Xijia embarked on a journey to explore North America. When Wang Xijia first went ashore, he was not familiar with the Americans, but now it is different, the three major North American powers, Inuit, Komochi and Apache, are all "brothers" with him. With acquaintances, of course, the feeling of traveling is different.

First of all, he explored from the Bering Strait, and first took Saleman back to the Inuit camp.

The Inuit in the camp were so surprised that their jaws almost dropped when they saw their patriarch holding the Komochi people shoulder to shoulder—when their patriarch went out, he planned to attack the Komochi with the Apaches, why did they walk together so affectionately now?

The Apache who remained in the Inuit camp saw their great enemy, Bloodfang, and jumped out to learn a lesson, but were stopped by the grey beavers. The Apache looked at the grey beaver in confusion, as if they didn't know each other: didn't they discuss how to deal with the Komochi two days ago, why didn't the enemy do anything today?

The gray beaver said coldly: "From now on, we will be brothers with the Komochi." We need to develop technology and prepare for the alien challenge. ”

Such a disobedient sentence came out of the mouth of the gray beaver, and Wang Xika couldn't help laughing. But also happy for this scene of solidarity – all thanks to that night.