Wang Tian was very satisfied with Zhou's observation ability, a six or seven-year-old child could find these problems, which proved that he was really thinking, but what Zhou said next shocked Wang Tian.

"However, now the shadow of the watch at noon every day is getting longer and longer day by day, which shows that the sun is now getting farther and farther away from us every day, although it does not seem to be much different, but the shadow does not deceive, and when the sun revolves around us, it is also moving around, and it is getting farther and farther away from us."

After saying this, Wang Tian couldn't help but look at him with admiration.

Nima! Although this statement is not quite correct, he at least grasps the essence of things, and even the relativity theory of motion comes out.

You must know that he is still a 6~7-year-old primitive villain, this wisdom is a bit demonic, Wang Tian carefully thought about what he was doing when he was six or seven years old, and finally came to the conclusion: peeing, mud, playing with mud!

If such talents are placed in later generations, after receiving systematic education, it is a pity that Newton, Einstein, and Nicholas Truss are properly placed in the primitive era.

Wang Tian himself is also half a bucket of water, although he knows very little, but he has decided to cultivate Zhou well, everyone is half a god stick, if others dare not say it, it should not be a problem to communicate between the two god sticks.

As far as the potential of the universe is concerned, it may be able to bring the tribe directly from the primitive age to the industrial age, just like the unknown first inventor of the United States: Nikolai. Truss.

This man, who is known as the man closest to God in the 19th and 20th centuries, has made countless inventions beyond the times in his nearly 90 years of life, giving him a god-like aura.

Many people think that he is the son of the plane, because many of his inventions and discoveries have greatly jumped out of the limitations of the times, which makes people feel incredible.

And in the Tianlong tribe, there is such a demonic figure now, how can it not make Wang Tian feel excited, you know, Wang Tian just asked Zhou to measure the length of the shadow before, just asked him to record it, and nothing else was said.

And Wang Tian himself seems to have only taught the universe how to use the meter ruler, and no other astronomical knowledge has been mentioned, a 6~7-year-old child, who can explain such a complex thing, does make people feel demonic, and the summary of this theoretical knowledge is no worse than Einstein, it is simply a demonic existence.

It seems that his crossing may be an accidental event, but the rise of the Tianlong tribe, because of the presence of the sky, is almost inevitable, and the Tianlong tribe is really a race favored by the gods.

Because of the addition of Zhou, the work of drawing lines gradually kept up with the rhythm of cutting, and Wang Tian could also have leisure to explain to the universe the astronomical and geographical knowledge he knew.

Wang Tian knows very little about this piece, the level is still in the geography textbook of junior high school, and he himself knows little about the gradually formed lunar calendar in ancient China.

In short, the conversation between the two gods is as direct as possible, Wang Tian wants to let Zhou take as few detours as possible, and Wang Tian will also mention the problems that Zhou can't understand, not asking for directions for him, just to open his eyes.

Of course, what they are discussing now is the issue of the lunar calendar, the meal has to be eaten bite by bite, things have to be done one by one, and it is impossible to achieve it overnight, even if Wang Tian, a time-traveler with thousands of years of civilization accumulation in later generations, is still struggling to come to the primitive era.

In the five-person costume production team, Wang Tian and Zhou were discussing the mysterious earth, the relationship between the moon and the sun, and the other three people were like listening to a book from heaven, and they couldn't understand what the two were talking about.

But Wang Tian found that Zhou was able to keep up with his train of thought, and he was a good teacher. Or is Zeus a genius student, the answer is self-explanatory.

It was close to noon, and Zhou pointed to the watch and sundial, signaling that he was ready to measure, and lunch was ready, and several women from the tribe were putting the prepared food on the dining hall table.

Wang Tian asked the animal skin sewing team to sort out the various materials cut and put them in the No. 5 hall of the pavilion, and after lunch, they continued to work, and now they had to empty the canteen for everyone in the tribe to eat.

Zeus got up and went to the place where the watch and the sundial were placed, and there was a clear mark on the ground, which was where the shadow was located at noon yesterday, and he not only recorded the length, but also carved it on the ground, and according to the calculation, the shadow distance today would be longer.

Wang Tian didn't bother him, there were still 7 little beasts under his heels, these 7 little guys, Wang Tian found that he would only entangle Ling'er when eating, and follow him all the rest of the time.

When Wang Tian was doing things, they were playing with each other on the side, and as soon as he had the intention of pulling his legs to leave, they would immediately come like shadows, and Wang Tian was thinking about how to get rid of the two little tiger cubs tonight.

5 little wolf cubs, as soon as they came to the tribe because they could eat independently, Wang Tian let them stay in the pavilion at night, and the two little tiger cubs were held in Wang Tian's arms as soon as they were born, and they have been kept in their own beds since then.

I also slept with Wang Tian at night, Wang Tian slept on one side, and the two little tiger cubs lay on the other side, sleeping with his head resting on his head, and now I want to separate them from myself, can it really be done?

Alas, try it at night, if you are not worried that one day, you may die in the tiger's kiss, Wang Tian is willing to stay with them all the time.

Wang Tian came to the new room, touched the lime layer on the wall with his hand, at a glance, the wall can no longer see the water stain print, but the hand touch can still feel the tide, the whole room is filled with a lime smell, it seems that the conditions for staying are not enough.

He wandered back to the tribal ancestral hall, which was now the tallest building in the tribe.

The gate of the ancestral hall is facing the gate of the wall, and the highest roof reaches 6 meters, and the height of the eaves in the front and back is also 5 meters, which is already a two-story height in later generations, and the overall momentum is magnificent.

The two houses built, in order to prevent rain, the front and rear eaves, all beyond the wall two meters, so that the general wind and rain can not hit the wall at all, and the paper on the windows of the house does not have to worry about being wet and damaged by the rain.

In the event of a particularly heavy wind and rain, a waterproof cloak larger than the window was propped up on the top of each window with a wooden stick.

The reason why it is called a waterproof cloak is because Wang Tianshi could not find a name to describe it, in fact, it is made of double layers of bamboo pieces woven with a curved square dough at the bottom.

The middle is filled with a large waterproof dumpling leaf, and in the case of strong wind and rain, you can simply remove the wooden square that supports it, and you can hang it down and fasten the window tightly.

In this way, it can be ensured that no amount of wind and rain can invade the house. It also protects the paper used as glass on the window sash from being wet and damaged by rain.

In order to improve the lighting of the house, the front and rear frontal walls of the house, in addition to the windows, there are only doors left, the warmth of the house in winter, now it is not enough, if the room temperature in the house is too cold in winter, it means that the warmth of the windows is too poor, and then you only need to buckle all these waterproof cloaks.

The reason why Wang Tian designed it this way is because all year round, the cold winter only accounts for 1/4 of the time, if in order to ensure the temperature in the house during this 1/4 of the time, there are no windows.

Then the light in the house will be very dim, the new house will be no different from the cave, such a house will not be comfortable to live in, with the current design, can ensure the amount of light in the house throughout the year.

As for keeping warm in winter, if the temperature in the room cannot be stabilized after the rain cloak is fastened, then it is time to apply a whole sheet of white paper and paste the window tightly.

There is still white paper in the tribe's current inventory, which is used to paste these dozens of windows, and as for the straw paper for wiping the buttocks, because it is constantly making hemp grass, there are even more.