What Bo thought of was that when they were discussing how to make a sailboat sail against the wind, the Son of God once said that when the wind is weak, the sails should be lowered and people should use oars or bamboo poles to row the boat forward.

When the wind is strong, just drop anchor and leave the boat in the water, or moor it on the shore and wait for the wind to die down.

For this purpose, he and others specially made a lot of oars and other things that match the sailboats.

How come it has become like this now?

Bo really wanted to ask the doubts in his heart.

However, after so many years of living like this, Lame is still the same Lame, but some things have become different, such as the ways of dealing with people.

"Son of God, didn't you say before..."

Lame thought of these things, and other people also thought of this.

But they are different from the lame ones.

With the attitude of asking if you don't understand, someone soon asked out the doubts in his mind.

Han Dashenzi, who was secretly rejoicing in his heart, was stunned when he heard this.

The corners of his mouth twitched involuntarily.

Can we not be so straightforward?

…

In the river in front of the Qingque tribe, the tied-up sailboat was once again untied.

Four people who often row flat-bottomed boats and are good at swimming control it on the boat.

Because there had never been such a ship in the tribe before, and there was a lot of gap between this crudely made sailboat and the mature sailboat, the sailing was not very smooth.

When several people took control of the boat, they seemed very unfamiliar with it.

"Take control of the boat and head downstream. The water here is too narrow and difficult to control."

Han Cheng stood here and waited for a while before speaking.

After hearing his words, the sailor, who was already sweating, began to control the sailboat and turn it toward downstream of the river.

The wind was blowing from the east at this time, and this section of the river also flowed from east to west.

When the bow of the sailboat had not been completely turned, the wind blew on the sail from the front diagonally, and the sailboat was still moving forward diagonally. But after several people on the boat used bamboo poles to straighten the bow and face the wind, the sailboat stopped moving forward.

Not only did we not move forward, we even went backwards.

Such a thing made the rowers a little confused, and the others watching on the shore couldn't help but feel a little confused as well.

By the way, didn’t the Son of God just say that if the bow of the ship faces the wind, the wind will generate some force behind the sail?

Why doesn’t this work now?

Han Cheng, the son of God of the Qingque tribe, was also a little confused when looking at the scene in front of him.

What the hell is going on?

How did it become like this now?

The memories that appeared in my mind were indeed like this.

After being confused for a while, Han Cheng was basically certain that he was deceived by his own unreliable and vague memory that was like a burst of inspiration.

The wind blew onto the sailboat from the front and passed through the two sides, and then formed some kind of thrust at the back. In all likelihood, I got it mixed up.

"Use the oar to push the boat so that the bow tilts diagonally forward toward the opposite shore!"

Han Dashenzi's insight is still very good.

Although he was basically certain that what he remembered before was wrong, he still saw something else from the previous voyage of the sailboat.

He immediately shouted out loud.

After hearing his voice, several people on the boat immediately did as he said.

Use the oar to turn the sailboat around so that its head is facing diagonally forward of the opposite bank.

Then, to the people of this era, something that seemed like a miracle happened.

The sailboat, which had just been moving backwards uncontrollably under the influence of the wind, not only stopped its backward trend, but also began to sail diagonally forward!

It can be seen that the people on the boat did not use bamboo poles to support the boat, but relied entirely on the wind to sail forward.

Because the river here is not wide, after the boat sailed diagonally towards the opposite side for a distance, it was basically reaching the other side.

These people did not feel too panicked. They inserted the bamboo poles in their hands into the water and exerted a little force with their hands, and the sailboat changed direction.

The bow of the boat quickly straightened and was parallel to the river.

With the previous experience, this time Han Cheng on the shore didn't need to say anything. They had already turned the bow of the boat towards the shore where Han Cheng and others were.

After adjusting the direction, they pulled the bamboo pole out of the water and dragged it on the water, allowing the sailboat to move forward at an angle under the influence of the wind.

When the sailboat approached the shore where Han Cheng and his team were again, they once again used bamboo poles to poke the riverbed to turn the boat.

The sailboat zigzags along the way, heading downstream.

Han Cheng and others followed the sailboat along the river bank and went downstream.

During this process, the people on the sailboat became more and more familiar with it, and those who were operating it gradually became more proficient.

The group walked down like this for about three or four miles, and the water surface became much wider.

As if it knew that the people of the Qingque tribe wanted to test the sailboat they had finally built, the wind was very responsive and never stopped.

The water surface is wider, making navigation more convenient.

Several sailors also became much more skilled.

They used bamboo poles to control the direction of the sailboat, trying to make the sailboat sail sidewind, with the wind, and against the wind.

Although it is said to be against the wind, it is not really against the wind.

When the boat is sailing against the wind, it needs to make some tilt to let the sail face the wind at an angle. Accordingly, the sailboat needs to move in a zigzag direction.

Moreover, except when the wind is particularly strong, most of the time, the ship's navigation will deviate, which requires people to use bamboo poles to adjust the course from time to time to prevent it from deviating.

After half a day, I watched the people becoming more and more skilled in controlling the sailboat, and the sailboat continued to sail under their control.

Han Cheng gradually frowned.

The reason why he frowned was because she suddenly remembered something.

The thing is how to control the steering of the ship.

Nowadays, people in the tribe use bamboo poles, which seem to be very convenient and easy to use.

But Han Cheng still found problems in it.

The purpose of asking people in the tribe to make sailboats was to eventually let the tribe's sails sail on the rivers and oceans.

The water there is very deep, so deep that you can't see the bottom.

By that time, it would be unrealistic to use bamboo poles to control the direction of the ship.

Because there is no bamboo pole that long.

Moreover, even if there was such a long bamboo pole, no one could ignore the buoyancy of such a long object in the water and insert it to the bottom of the water to control the direction of the boat.

So after thinking about it for a while, Han Cheng gave new orders to the people on the sailboat.

He told them to stop using bamboo poles to steer the boat and use oars instead.

On the rivers and seas, bamboo poles cannot reach the bottom, but oars, which are originally undulating on the water surface, can still be used.

After hearing Han Cheng's words, several people on the boat abandoned the bamboo poles and began to use the oars on the sailboat to control the direction of the sailboat.

Compared with using a bamboo pole to control the direction of the boat, using an oar to control it seems slow and rigid.

You need to paddle the water on one side continuously, and the sailboat will turn slowly, but the speed is not fast.

Moreover, people standing on the boat and holding bamboo poles in their hands can control the direction of the boat at will, but this is not possible using oars.

Of course, the narrow one where one person can hold two oars and the oars are on both sides of the boat is an exception.

When the time comes, Han Cheng wants to make the sailboat very big. It is obviously impossible for one person to control two oars on a sailboat.

So the four people each held a paddle in their hands, and stood in groups of two on both sides of the boat, controlling the direction of the boat by paddling.

If the boat wants to turn in a certain direction, the two people on that side will start paddling hard with the oars in their hands, while the other two people will remain still.

Because of the wind direction, the course of the boat needs to be adjusted more frequently, which is much more troublesome than using a bamboo pole.

It didn't take long before these people were sweating profusely...

Han Cheng stood here, looking at the sailboat sailing under the control of several people, and frowned slightly.

He still disliked the current steering method.

This method seems too clumsy.

It requires a lot of manpower and material resources, and the steering effect is not very good.

Currently, the experiment is still being conducted on a small sailboat. If this is the case, then when the tribe has a large sailboat, how many people will be deployed on both sides of the sailboat to control its direction?

And the place where we are now can be described as calm and peaceful.

If you are in a rough river or sea, or encounter some emergency situations, then using such means to control the turning of the ship will be even more inadequate.

In addition to using bamboo poles and oars, are there any other ways to control the turning of the boat?

Han Cheng frowned and fell into deep thought.

At noon, at Han Cheng's signal, several people on the boat began to steer the boat upstream, while Han Cheng, Bo and some other people who were visiting on the shore walked back along the river bank.

Several sailboats stopped at the dock.

In order to prevent the sailboat from running around, they not only tied it up with ropes, but also lowered the sails at Han Cheng's signal.

This will effectively prevent the sailboat from moving around in the wind.

After finishing these tasks, several people got off the sailboat. Their legs were a little weak and they felt exhausted.

After half a day of this, they were exhausted...

"Tell me, what do you think of this sailboat after half a day? What do you think is not working well and needs to be changed?"

Under the shade of a tree by the river, Han Cheng, who had washed his face and upper body with clear river water, sat down on a rock and looked at the people around him who had mostly washed their faces with river water or were in the process of washing their faces, and spoke out loud.

After hearing Han Cheng say this, Bo thought for a moment and then spoke first.

"I find it difficult to steer a sailboat, especially since I can't use a bamboo pole and can only use an oar, which is very strenuous."

After Bo said this, he immediately attracted everyone's approval.

Especially the four sailors who had been operating the sailboat for the whole morning, they nodded their heads like chickens pecking at rice.

They definitely empathized with the problem that Lao Lao mentioned.

Because now if they raise their arms slightly, they can feel the fatigue transmitted to them.

I feel very uncomfortable even washing my face.

These are all used to control the direction of the ship.

"The sail seems to be a little uncomfortable, and it's not easy to face the wind..."

"Sometimes, it's not easy to find where the wind is coming from, and it's difficult to adjust the sailboat quickly..."

After Bo spoke first, the others also started talking, expressing some of the problems they felt during their experiences this morning.

Bo and some other carpenters wrote down all the problems raised by everyone. What they needed to do next was to figure out how to solve these problems.

After solving these problems, the sailboats in the tribe can be further improved and their performance will improve accordingly.

However, there are some things that they don't need to worry about, because the moment Han Cheng heard this question, who has the memory of future generations, has already thought of a solution to the problem.

For example, it is difficult to find the wind direction.

"You can tie a small piece of cloth or other light objects to the mast or other parts of the ship, and see the direction in which they are blown by the wind. This way you can know where the wind is coming from."

Han Cheng said this.

As for the weather vane, he definitely hadn't thought about it before.

Now that someone said this, I immediately realized this matter and remembered the weather vane.

Of course, in addition to this method, there are many other ways to identify wind direction.

For example, some experienced sailors only need to wet their fingers with saliva and feel the wind to accurately know where the wind is blowing from.

Of course, such mature sailors do not exist in the Qingque tribe.

Therefore, they can only accumulate experience based on simple basic methods and gradually become experienced sailors.

After hearing Han Cheng say this, everyone present couldn't help but brighten up their eyes.

In many people's minds, the image of the tribe's green bird flag rustling in the wind emerged.

The issue of the weather vane was also resolved with everyone's reactions.