The round piece of paper is marked with the four directions of east, west, north and south.

And between the directions, the degrees are evenly depicted, and nine spaces are carved out between each interval.

That is, there are 10 degrees between each space.

In fact, it can be portrayed in more detail and more precisely.

However, the compass that I first tried to make was still a little small, and if I continued to depict it with a quill pen, it would be too bloated and cluttered, and it would not be easy to recognize.

However, these are small problems, as long as you want to be meticulous, and when you make it later, you can divide and plan it carefully.

Now that this has been made, these are minor issues.

This round piece of cardboard has a small hole in the middle, just enough to fit on this small round bronze pillar, and the size matches the round bronze base underneath.

The bottom of the round piece of paper has been coated with a layer of fish maw glue, and after pressing it, it just matches the bronze bottom below.

After getting this done, Han Cheng took the magnetized iron needle again.

This needle is not an ordinary needle, but Han Cheng asked the people in the tribe to customize it.

The two ends are pointed, wide in the middle, and there is a hole in the middle, just enough to fit it on the small bronze pillar in the middle that is used as a shaft.

After some adjustment, I got something like a 'hat' and put it on top of the bronze pillar to fix it.

Of course, this kind of fixation is the kind that is not next to the pointer.

The purpose was not to fix the needle, but to prevent the compass from slipping off the bronze pillar if the compass was held upside down.

This time, before the assembly was carried out, Han Cheng made some adjustments and experiments in advance, and did everything as well as possible.

So after this set of processes, after assembling these things, there is no embarrassment when making a simple compass before.

After Han Cheng installed it, made some minor adjustments, and placed it flat, the half of the pointer that was dyed red by Han Cheng was already firmly pointing to the north that was also marked by Han Cheng with a red pen.

Han Cheng shook it back and forth a few more times, then put it down, and then went to look at the effect of the compass.

The purpose is to check the quality of the compass.

At present, the quality of this newly manufactured compass is still very good.

After being shaken by Han Cheng like this, there was nothing like falling apart.

Han Cheng placed it flat on the table, and the pointer quickly pointed to the north and south sides.

Seeing this, Han Cheng couldn't help but smile with satisfaction again.

In fact, this compass still has some shortcomings.

The downside is the lack of a transparent lid.

If you make a transparent lid and seal it on it, it becomes perfect.

In this way, the transparent cover can be used to protect the parts of the compass from external forces as much as possible.

In Han Cheng's impression, there are nothing more than several people who can take on this important task - glass, plastic, and some extremely high-quality crystals!

But these things are not available in the tribe now, and it is useless to think about them.

What Han Cheng could do was to use some good quality and more suitable leather to make an opaque lid and cover the compass firmly.

Open it when in use and close it when not in use.

Although it is convenient and beautiful to use without those transparent lids, it can still play some protective role after all, which is better than no lid.

Holding this soft lid with a leather cover, how to look at it looks a little awkward, Han Cheng couldn't help but feel a little moved in his heart.

Perhaps, in addition to using this kind of leather cover, my tribe can really get something transparent as the cover of this compass!

Certainly not pure and flawless crystals with excellent transparency.

To be honest, there is no such thing in the tribe now, and it is not uncommon to see very good quality jade, as well as jade rough stones, and there are piles of them in a house.

Although plastic was extremely common in later generations and once became an important part of pollution, at this time, Han Cheng couldn't feel this kind of happy trouble......

Han Cheng's heart is glass!

Because just now, his heart suddenly moved, and he remembered a book he had read on the Internet.

Some of the protagonists rubbed the glass out, and then reaped a lot of people's amazement, and at the same time, there was a rapid increase in wealth and status.

In later generations, Han Cheng was a person he liked more, he was a fairy at the beginning, and then he slowly transformed into a history class, and later he basically watched history.

And many of them have a characteristic.

That is, many people who have traveled back in time can remember how many things were made, such as the making of glass, horseshoes, efficient modern steelmaking, and so on.

These things will become a big gain to promote the development of the plot, and by the way, there will be a large wave of pretending to be slapped in the face, making a fortune and so on!

As a person who has been immersed in this kind of thing for some time, Han Cheng remembered some things about glass manufacturing at this time, which was also in the past.

After all, there are all kinds of strange and strange knowledge in these books.

Even Han Cheng himself believed that if he could memorize all the strange knowledge written in the historical books he had read, then he would definitely be able to lead the Qingque tribe to quickly take off one after another!

It can even take a rapid step into the industrial age!

After all, there are so many strange things in there!

As small as needles and threads, mosquito coils, toilet water, bras, aunt towels...... From redcoat cannons, flintlock pistols, and battleships...... And so on, it's all-encompassing, everything!

Of course, in addition to these, there are many poems and songs that are specially used to pretend to be forced to slap the face and enhance fame.

However, Han Cheng is not envious of these things.

This is not only because he has memorized a lot of these things in his own mind, but also because this thing is really unusable in this era.

Think about it, you chanted a song to a group of primitive people, 'When is the bright moon, ask the wine to the sky'.

In such a case, nothing will be received except for a circle of primitive question mark faces.

As for what 'the moon is on the willow tops, people about after dusk'' Guan Ju dove, in the river island. My Fair Lady, Gentleman. At this time, the effect is really far less good than the effect of a sentence such as 'I want to sleep with you and have a baby'......

According to a history book that Han Cheng once read, glass was fired with sand.

As for the glass bottles, they are blown out of a tube or something.

When it comes to the rest of the things, Han Cheng himself doesn't know.

He couldn't remember it himself, whether he had forgotten it, or if it wasn't written on it.

But that's enough.

Wait a minute, I will tell Heiwa, the guy who wants to throw everything into the fire and burn it, and let him study and explore.

Today's black baby is already familiar with things such as pottery, porcelain and mold making.

As an exploratory talent, these things have long been unchallenging for him.

So Han Cheng could expect that when he told Heiwa about this new direction of exploration, this guy would be very excited!

I will be very happy to accept this matter!

After all, this is a thing that has a certain connection with the kiln, and after it is completed, it is also a test of people's skills.

There are a lot of people around, after all, these days, as Han Cheng has explained the various tasks of making a compass, and has also personally cooked for the trade team led by Han Yousan, as a reward, the people in the tribe have brought back a very useful magnet for the people of the trade team, and the fact that the Divine Son is also ready to use these things to make something very magical has already spread among the tribe.

Even after such a long time, the people in the tribe still haven't changed their habit of following the Son of God to see the strange.

Even in the eyes of the old people in many tribes, it is strange to follow the gods, which is much more interesting than the model plays performed in the tribe.

After all, after such a long time, many of them have already watched the model drama many times.

Visual fatigue has already appeared.

And following the Son of God to look strange is completely different.

Because Miko can always make a lot of strange things, people can't help but be dazzled by it.

For example, at this time, everyone present felt extremely curious and novel when they saw that no matter how they moved and finally stopped, they would point their pointers straight to the compass in the north and south.

I feel that this time I and the others are not here to watch in vain, which is really worth it.

Looking at the reactions of everyone present, Han Cheng suddenly had a feeling of doing a live broadcast.

If you are doing live broadcasts in this era, judging from the way everyone is showing now, it is conceivable to make a lot of money.

Of course, it is very likely that this will be the case - you receive a lump of dried meat from a pine branch, and you receive a reward of two dried vegetables from a stone......

Not all of the people who stand here to watch the excitement are here, and some people are here with thoughts and a strong desire to learn.

For example, the stone that has been prepared for many years.

Speaking of this, Han Cheng sometimes really remembered that one day the stone would cry and say the sentence 'How can there be forty years of preparation in the world' with a sad face.

This guy is a part-time teacher in the tribe, and his curiosity is still as strong as ever.

After standing here and watching for a while, he finally spoke up and asked Han Cheng for advice.

"Son of God, why can the needle of this compass always point to the north and south? Why don't you point to the rest of the place? ”

When the stone opens, it will pick up the thick fish, and you will be able to ask the point when you ask.

After thinking about it, Han Cheng smiled and said to the stone, "This is because the whole earth is a big magnetic field.

The North Pole of the South Pole is equivalent to the poles of this large magnetic field.

I don't know if you've found a more interesting phenomenon these days.

It is impossible to break the same magnet and then try to match it from this fracture without relying on external forces such as squeezing it by hand.

Moreover, even if they are forcibly put together by hand, as long as the hand is released, they will still separate, then change some direction, and then suck together.

The reason why this is the case is because magnets have a characteristic of opposites attracting and repelling the same sex.

The broken magnet has changed from the original whole to two individuals, and it is natural that there is a distinction between the same sex and the opposite sex.

In other words, even above this magnet, there is also the North and South Poles.

When two South Poles face each other, they repel each other, and one South Pole faces the other North Pole, and they attract each other.

As for the needle of the compass, although it is iron, after my operation, it has become magnetized and has the characteristics of a magnet.

That is, in its body, there are also the South Pole and the North Pole.

Under the effect of the exclusion of the same sex and the attraction of the opposite sex, the pointer will naturally turn into a north-south direction.

Also, the part that is dyed red and has the characteristics of the South Pole points to the North Pole, while the part that is not dyed points to the south......"

The small class of the gods of the Qingque tribe has started again.

Han Cheng, the god son of the Qingque tribe, based on what he knew about magnets and compasses, and then added his own understanding, and the comprehension ability of the tribesmen present, to explain this to the stone in as easy to understand as possible.

When Han Cheng started speaking, everyone present stopped speaking one by one and listened very seriously.

However, the effect of hearing the same words is completely different to different ears.

Just like the stone, after Han Cheng finished saying this, it didn't take long for him to understand these things.

But although more people were also present, they knew what every word Han Cheng said, but after connecting them together, they couldn't understand it, and they didn't understand anything.

What Antarctica and North Pole, what same-sex repulsion, what Antarctica absorbs the North Pole and so on, it makes people feel big when they hear it, and after a while, they will make people dizzy......

However, the more this is the case, the more the people in the tribe feel that the Son of God is powerful, and they feel that the Son of God is unfathomable!

Think about it, if what the Son of God said, he and others can easily figure it out, then how can he get it?