In the quiet of the night, a faint light flickered quietly in the carpenter room of the Qingque tribe.

Under the faint light of the fire, a figure was busy with caution, not daring to make any excessive movements, nor daring to make any noise, and even walking was extremely careful.

It's as if I'm worried that if I move too much, I will disturb the quiet night.

In the quiet of the night, time passed quietly, and this figure had been busy here.

It was not until the chickens fed by the tribe crowed several times that the fire was extinguished.

Then a man quietly groped out of the courtyard of the carpenter's room, and then groped his way through the courtyard towards the place where he slept.

In the process, he walked very slowly.

On the one hand, he was worried that if he walked fast, he would make footsteps and wake up those who lived in the courtyard, and the other reason was that there were many mats in the courtyard, and there were many people who were sleeping.

This walking body swayed back and forth, deliberately slowing down, a heavy and a light person, groping in the night.

After a while, he had to admit a fact that made people feel extremely helpless.

The thing is, he couldn't find where he slept before......

After standing here and hesitating for a while, he finally gave up his resistance, groped his way to the wall, and then found a place where there was no one, sat down with his back against the wall, stretched his legs straight, folded his hands in front of him, and soon fell asleep......

By the time it was dark, some people in the tribe had already begun to rise, and it was the people of the tribe who were ready to continue fighting for the ongoing harvest.

Leaning against the wall, the lame asleep was woken up by the noise.

He rubbed his head and stood up from here.

At this time, with the light that is still relatively weak, I can barely see things.

Lame found the mat where he slept outside, and after lying down, he soon fell asleep again.

By the time the limp woke up again, the sun had already risen quite a bit.

Many of the tribes have already gone to the ground.

Those who are in charge of cooking are cooking there, and the smoke rises one after another, with a smell of fireworks, which makes people's hearts feel comfortable to look at.

Woke up with a limp, and soon heard some conversations, the words of those who had been involved in the shipbuilding with him.

They wondered why everyone had gone to sleep, and why, when they woke up, the rudder of the sailboat had been improved.

After someone suggested that someone got up in the middle of the night and secretly did it, some people began to speculate about who did it.

Listening to the discussion of these people, the lame who was still lying there couldn't help but show some faint smiles on his face.

Then he sat up slowly, pretending to have just woken up, rubbing his eyes with the back of his hand, and then squinting in the direction of the carpenter's room, and the people who were talking there.

It's like not knowing what they're talking about......

Han Cheng already knew about this.

Standing at the door of the carpenter's room, he saw that he limped here, and then pretended to be the same as the rest of the people, looking at the modified sailboat with a look of surprise, as if he didn't know anything, and couldn't help but smile helplessly.

This guy!

It's been such a long time, and I still can't get rid of this habit of rushing to work.

For such an act of lameness, Han Cheng was moved and felt particularly distressed......

"Boom la la ......"

With the sound of water, the sailboat, which had been lowered its white sails, was once again lifted out by the tribesmen and lowered into the water.

Four sailors who had been piloting the ship for most of the day had been on board.

On the shoulders of one of them, he also carried a large rudder in the shape of a fish's tail.

The man who carried the rudder went straight to the stern of the sailboat.

Standing on the edge of the dock, he gave the man a voice instructing him on how to install the rudder on the stern.

It was not a difficult task, and under his guidance, the man quickly completed it, attaching the rudder to the stern.

Only at this time, before last night's revision, the junction between the rudder and the stern post had changed considerably.

One of the most striking changes was that the iron rod that had been used to hold the rudder and the wooden posts together was gone, replaced by a thumb-thick rope made of several thin strings.

After the sailor had mounted and tied the rudder, the other three sailors quickly hoisted the three lowered sails.

Seeing that everything was ready, one of them went up to the bow of the boat, jumped onto the dock, untied the cable, and threw it onto the bow.

Then he stretched out a leg and kicked on the bow of the boat, and without much force, the whole boat left the dock and slid backwards.

And he also took this opportunity to put a little force on the dock with his other foot, and the whole person came to the boat.

The sailor, who stood at the stern of the ship and held the handle of the rudder with both hands, began to hold the handle of the rudder with both hands and began to imitate the way a fish swims in the water, and swayed the rudder from side to side in order to make the sailboat turn.

At this time, the rudder, the wooden plank underneath that was made in the shape of a fish's tail had been inserted diagonally into the water, and the whole thing was submerged in the water.

As the man swayed from side to side, the submerged fishtail rudder swung from side to side, plucking the water, and it really looked like a fish's tail swinging in the water.

By replacing the iron bars worn there, the leather ropes at the joints allow the rudder to sway from side to side to the maximum.

Although it is not as high as the real fish, it has made a big breakthrough compared to the previous time.

This is the result of thinking about it for a long time and spending a while trying to transform it.

With the movements of the sailor at the helm, whether it was the people standing on the shore or on the dock, or the three sailors on the sailboat, they all suddenly lifted their spirits, and looked at the sailboat with blazing eyes, wanting to see if this kind of rudder was good or not, and whether it could bring them miracles!

Sure enough, the miracle happened quickly!

"Bang!"

A bang rang out here on the dock by the river.

The sailboat that had just left the dock actually returned to the dock at this time and made a very intimate contact with the dock.

It's like he's reluctant to part with the dock like this.

Looking at the bow of the sailboat that collided with the pier, a group of people standing here waiting to witness the miracle couldn't help but look at each other.

I didn't know what to say, and there was a bit of silence for a while.

Didn't you say that the rudder is for turning?

How, after this rocking, the sailboat not only did not turn, but returned again?

How does this thing, which I and others have spent a while researching and manufacturing specifically for the turning of a sailboat, not look like it makes a sailboat turn at all, but rather like a thing that specifically pushes the sailboat forward?

Han Cheng was also a little confused.

Logically speaking, whether from the perspective of biomimetic biology or from the knowledge of the rudder that I remember, such a thing should not happen.

A rudder is something that is really used to control a ship to steer......

But looking at the sailboat in front of him that had made close contact with the dock, the affirmation in Han Cheng's heart became less firm again.

Could it be that I really remembered this mistake?

However, such doubts did not last long.

It didn't take long for Han Cheng's heart to move, and a picture suddenly appeared in his mind-

In the night, a great river stretched here like a pitch-black abyss.

Snowflakes kept falling in the sky.

Both sides of the river are covered with white snow.

The dry and crumbling reeds and the branches of the trees that had lost their leaves and turned bare were covered in snow and lost their original shape.

It was at such a time that there was a faint sound on the silent river that resembled the creaking sound of wood rubbing against each other.

There was also the soft sound of some water waves.

A man stands at the stern of a ship, facing the side of the ship.

His hands were pressed against a diagonal wooden pole at the stern of the boat, and he swayed from side to side.

With the man's movements, the boat floating on the river kept moving forward.

When the boat reached the middle of the wide river, the man spread the wooden handle, threw the anchor down the river and stopped.

Then he crept into the cabin with another man on the ship, quietly tied up a sleeping man, and took out a knife from under a plank, and put it on the neck of the awakened man, and robbed him.

and asked the man if he wanted to eat chaos or ......

This is a scene from "Water Margin".

It tells the story of Song Jiang who had a serious illness and was in danger, in order to save Song Jiang's life, Zhang Shun crossed the river overnight to find the earth spirit star, and the divine doctor An Daoquan came to treat Song Jiang, because he was too sleepy, he fell asleep in the cabin when crossing the river, and was tied up by the gangsters who robbed the river to rob the gold and silver, and threw it into the river.

This TV picture that Han Cheng watched in his later life appeared in Han Cheng's mind like this.

Han Cheng's attention was not on Zhang Shun, but all on the vague ship.

To be precise, it was placed on the wooden pole that was rocked by the boatman and controlled the ship forward.

Moreover, the wooden pole in my memory is now gradually overlapping with the wooden pole behind the tail of the sailboat in front of me......

This thing doesn't seem to be called a rudder, but a oar!

It's the kind of oars that are small and pleasant, big and hurt, and the trees are gone!

It's also something that controls the boat's navigation in the water!

Unlike the oars, they were not on the sides of the boat, but were mounted on the stern of the boat, just like the ones on the sailing boats of their own tribe......

After remembering these memories, Han Cheng once again fell into a state of confusion.

What is this?

I obviously wanted to get the rudder out, but in the end, I got something like a rug?

Han Cheng was confused, and everyone present was also confused.

In this confusion, several people on the boat looked at the technical bosses on the shore, and saw that these bigwigs did not speak to explain the current situation, so after waiting for a while, the man standing at the bow of the boat came to the dock, and once again stretched out his feet, kicked the sailboat away from the dock, and retreated to the back.

And once again, he stepped onto the sailboat.

The sailor, who did not know whether to call it a rudder or a oar, waited until the force of the sailboat to retreat was completely gone, and the sailboat was about three or four meters away from the pier, and then he began to shake the wooden handle again hesitantly and slowly.

As he swayed, the sailboat soon moved again, and continued in the direction of the dock.

Seeing this, the man quickly stopped shaking to prevent the sailboat from sliding forward too much and hitting the dock again.

When maintaining this movement, the 'rudder' held by him did not remain in the center, but was subconsciously pressed tightly on the wooden post, and the wooden fishtail in the water deviated to the right to the greatest extent.

The boat is light and fluttering in the water, especially the small boat with a small draft, and can still slide forward for a long distance after stopping the push.

So even though the man behind him who was rocking the 'rudder' had stopped and stopped what he was doing, the sailboat was still slowly gliding towards the front.

The object you want to hit is still the dock in front of you.

The man standing on the bow of the boat had already lifted one of his legs.

Preparing to wait a little longer for the sailboat to get close to the dock and still not stop, he pedaled the dock with one foot and used his strength to stop the boat, lest the ship hit the dock again.

It was at this time that he suddenly found that the bow of the boat, which was originally crashing straight towards the pier, was actually turning slowly, and the direction of the boat was to the right, that is, the depth of the river.

In the end, the man's raised foot did not kick on the dock.

When the bow of the boat was less than 30 centimeters away from the pier, Kankan turned all around, and instead of crashing into the pier before, it headed towards the river.

The people on the boat couldn't help but look up at the sails, wanting to see if the wind was blowing the sailboat, and the sailboat turned around.

Apparently not, because the small strip of cloth that was the weather vane at this time did not flutter much.

"It's the rudder!"

Han Cheng on the shore pointed to the fishtail that was biased to the side and said out loud.

It was at this time that he realized that the fishtail tail could not only be used to turn, but also to drive the fish forward......