In fact, the early word is used in the order of up and down.

The sun rises at the top and the sunset at the bottom.

The cross means to divide the morning and afternoon.

Therefore, the sun is above the cross, which represents the morning.

It's just that this five-stringed piano was added by her with four strings at some point, and it has already become a nine-stringed piano.

And on the lotus platform, flat and unobstructed, it was first used by Ah Ah to observe the sun and shadow, therefore, there is Ah Ah according to the south method, wrenching his fingers, every ten days, set a guide line due south.

And the most recent guide line she drew the day before yesterday, just in time.

Yes, the position of the true due south of the earth is always subject to change.

This is something that is rarely understood.

At this moment, the edge of the nine-stringed piano, after being placed along this guide line, the bamboo sticks on the headstock are aimed at the south, so that there is a fixed observation position.

Indeed, it is very effective to observe time in this way.

Look at the guide lines carved on the stone platform, there are more than 80 lines, it is more than two years have passed, for this reason, these guide lines have been extremely referenced.

Therefore, Ah He does not need to wait for noon to determine due south, as long as he refers to the previously determined guide line.

And the ape-man from Chu is already very sensitive to the change of seasons, much more sensitive than the wild man in the south, and Ah is even more so.

She roughly knew that it had been two years.

It was with the concept of reincarnation of the year in mind that she would try to carve the guide line so that she could use it for the next year's observation time.

After all, the south method is very patient, every time at noon, she has to sit on the stone lotus platform Guanyin, to watch for a long time, and from time to time with two chopsticks, compare the length of the shadow change, in order to compare the shortest shadow line and the position of due south.

Zhang Jingtao found that this is another meaning of the word "hand", for this reason, the hand, with the sound of "guard", is to keep that "inch" time.

It can also be seen that the south of Chu is too hot, and the four seasons are not clear enough, for this reason, those savages are not sensitive to the seasons, which is also the reason why they have not produced civilization in modern times, so they have to be cultured.

However, at this moment, Ah Ah looked at those lines and was surprised.

"Huh? Hey? "It's non-stop.

I don't know what the surprise is, I don't care that so many people around me are waiting for her to explain the problem of looking at the time.

But Zhang Jingtao at least knew that Ah Ha had definitely discovered something, not pretending to be profound.

You must know that Ah's understanding of astronomy has long surpassed that of all modern scientists.

I have to say that modern scientists are all bookish, who has the kung fu to really observe the shadow of the sun day after day?

Just imagine it according to the book, and forget it, even if it is a study.

Anyway, who knows if it's science fiction or not?

As long as you say it inscrutablely, and come up with a mess of new names and data, people will believe it.

Of course, most scientists themselves don't know that they are actually playing science fiction ridiculously, and in their opinion, they are speculating and deducing, but they don't know that the books they believe in are themselves wrong.

Therefore, after believing in these idealistic sciences, they chose 'wrong books, wrong theories, and wrong formulas' as objective references, and deduced and inducted.

As a result, the conclusion reached seems to be the Tao and mysterious, but in fact, Genben is pure science fiction or wrong science fiction.

Just like the wrong pi, between the circles themselves, can be applied, and for this reason, it seems to be very logical.

Just as they couldn't figure out why, when the sun and moon were shining together, the moon was completely unobscured by the earth and completely exposed to the sun, but this sphere, which only reflected in all the books, only showed half a moon.

The full moon is not even displayed.

Isn't it supposed to be total reflective?

One can imagine, how can modern scientists figure out how the ball turns?

Of course, when looking at the moon from the earth, there should be a slight angle deviation, but if there is a deviation, the observation should be a full moon close to the full moon, but what people see is that this moon is only half a moon.

Such a moon is so amazing, no one in modern times understands why, but Ah knows why.

Because Ah has no books to refer to, she will only observe nature by herself to gain true knowledge.

Nature doesn't lie, Zhang Jingtao once heard Ah He say that from some recent observations, she has always wanted to know why the moon is half a moon under the same sun and moon.

It's just that when Zhang Jingtao asked carefully, Ah He refused to say, just because she said that there were still some things she hadn't figured out, and she had to figure it all out before she could tell Zhang Jingtao.

At this moment, after looking at the lines on the lotus platform for a while, Ah Yu seemed to have solved her doubts, so she clapped her palms and carved a long number '1' on the stone platform, counting the last few after the 36th guide line as another year.

Undoubtedly, Ah He's surprise at the moment is because she has finally passed Guanyin and can clearly distinguish the year.

For this reason, after looking at this '1', Ah Yu thought about it, and also marked the pronunciation yi on it, undoubtedly, this vertical line according to the word 'ten', the vertical line that divides astronomy vertically, has since become the number 1.

Then, Ah Yu explained the time to the girls with great interest.

As Ah said it, Zhang Jingtao became nervous.

Because of Ah's explanation, there is a reason why she thought of using sunlight to observe time.

Of course, this will say that the surface of the lake is 'one', and the sunlight from the west is called the 'oblique cross', and then, if the light from the east is also included, then the word 'big' will definitely be involved.

If you say the word 'big', then if you don't do it well, it will immediately cause a change in time and space, and your soul will fly to the Warring States period again.

Then, if he faints at this time and makes Fu Xi become a nerd again, it will undoubtedly make it more difficult for the Silk Clan, who is all a girl, to deal with the oil-eating people, but he still has to take care of him like a nerd.

However, looking at the demeanor of the surrounding women, Zhang Jingtao couldn't interrupt, otherwise, it would affect their trust in Ah He.

Moreover, he can't tell Ah Ah the truth about himself, otherwise, it will affect Ah Ah's way of thinking.

In desperation, Zhang Jingtao could only try to think about what words should be written next on the Jade Guanyin in the sea of knowledge.

He tried his best to think about it, but he also listened carefully to A's explanation.

Because of Ah's explanation, it is likely that he will give him a hint.

In this way, I heard Ah Ah say that when she wanted to record time, she couldn't determine what to use as the starting point of the sun, and the only cardinal point seemed to be due south, so she took the southern point as the cardinal point.

Why?

Because the time of the sun rises and sets differently every day, it is not a base point.