The eldest brother was absolutely right. Han Cheng had indeed thought of a way to solve the problem.

This thing is about installing sails on the boat!

Whether it is the poem I learned when I was a child, "The lone sail disappears into the blue sky, and only the Yangtze River is seen flowing across the horizon", or the various TV pictures, or the paintings on the side wall of the living room at home, which often have a welcoming pine, a big river, a boat with a sail, and a plaque with the words "smooth sailing"...

This was also one of the main reasons why Han Cheng slapped his forehead hard with his hand.

After all, installing sails on a ship and using the wind to move the ship forward is common sense for people in later generations.

It was only now that I remembered this matter.

How can this not make people feel annoyed?

After a while, Han Cheng calmed down a little and thought of some reasons why he had such a blind spot in thinking.

First of all, it is influenced by the environment in which later generations live.

In later generations, the place where he lived was either driven by machines to pump river sand, or by large iron boats that ran back and forth on the river, picking up people from both sides of the river to go to the market in the town downstream.

Or you might encounter small wooden boats or iron boats docked at various ferry crossings, used to ferry people to the other side.

He had never come across a ship with sails in real life.

Another reason is that over the years, the Fire Tribe has been transporting the woven linen on rafts to the Green Bird Tribe.

The Qingque tribe rarely rowed long distances along the waterway, and the rivers near the main tribe were narrow, so there was no need to use sails.

Under such circumstances, Han Cheng subconsciously did not think about this aspect.

Now, I was leading the people of the tribe downstream. Since I was in a hurry to travel, I quickly thought of the sail.

"Stand the reed mat upright and support it with sticks or something to prevent it from falling over.

If you can't hold it up, two people can come and lift it up with their hands and carry it with their bodies.

Please note that people need to face the direction of the wind. "

Han Cheng said this to everyone.

In fact, at the beginning, Han Cheng wanted the people in the tribe to pull up the cloth and use it as a sail.

However, apart from the clothes people wore and some bandages for emergency use, there was no extra cloth on the ship for Han Cheng to use.

Moreover, even if there was extra cloth, it would not work because these cloths were all linen and very breathable.

The wind will leak out through these small holes. If such cloth is used to make sails, even if there is a strong wind, it will not provide much propulsion for the boat.

It was precisely because he realized this that Han Chengcai did not directly ask people to try using linen. Instead, he used his imagination and asked people to use reed mats instead of linen to make a sail that was incredibly simple.

When everyone present heard Han Cheng's order, they felt strange and wondered what the Son of God meant by asking them to do this.

If you want the boat to go faster, shouldn't people row hard and use bamboo poles to push the boat?

Why didn't the Son of God ask anyone to do these two things now, but instead asked himself and others to set up the reed mat?

However, due to the habits formed over a long period of time and the various miracles they had witnessed with the Son of God, the people of the Qingque tribe still did as Han Cheng said.

While doing it, I kept paying attention, fully expecting a miracle to happen.

A miracle happened soon.

After the dense reed mat is stretched out, the wind blows on the reed mat, and the reed mat leans against the person's body or the stick supporting it from behind, creating a thrust.

This force is much greater than the force that the wind had on people and ships before.

Driven by such force, the ship suddenly accelerated and moved forward.

The boats that had already set up reed mats soon left the boats that had not yet done so behind and kept some distance between them.

Seeing this scene, everyone's eyes lit up immediately, whether it was the people sitting on the boats with reed mats set up, or those who were thrown away because the reed mats were not set up.

The method of the Son of God is really a good one!

It didn't take any effort at all, just putting the reed mat on the boat like this, and the boat suddenly went so fast!

This is much faster than paddling by hand!

More importantly, even if people row desperately and work themselves to death, their speed may not be faster than the current sailing speed of the boat!

The Son of God is worthy of being the Son of God!

It's impossible not to admire it!

Always able to find ways to make things extra useful using simple tools!

With their hearts full of emotion and their minds full of surprise and admiration, those on the boats that had not yet set up their reed mats also sped up their speed and set up their reed mats so that the wind could blow on them and carry them faster...

Han Cheng sat on the boat, feeling the speed, and a smile appeared on his face.

Solving the problem so lightly is more in line with one's identity and status as a latecomer.

Thinking so conceitedly, Han Cheng gradually had some other ideas.

The idea was that after returning from the Fire Tribe, he would begin to gather together Bo and other outstanding carpenters from other tribes, especially those who were very experienced in shipbuilding.

Let them start researching on sailboats and try to build them.

In terms of long-distance sailing capabilities, sailboats are undoubtedly much more powerful than the current ships in the tribe.

The existing ships in the tribe are OK for short distances, but they are really outdated for long distances and cannot keep up with the demand.

Before, after Han Cheng came to this world, the tribe was very poor and had no many things. In that situation, no one cared much and they thought it was good to have a bamboo raft.

Later, when Bo and others made the wooden boats that would flow on the river in his hometown when he was a child according to his drawings, Han Cheng became even more satisfied.

However, one characteristic of human beings is dissatisfaction.

When you get something good, you want something better.

For many things, satisfaction is only temporary, while dissatisfaction is the norm.

So now, Han Cheng is beginning to be dissatisfied with the small wooden boats his tribe already has and wants to build a sailboat.

This dissatisfaction, generally speaking, has more advantages than disadvantages.

Because of this characteristic, it is not easy for people to be content with the status quo.

Don't become complacent after achieving some results and lose the motivation to make progress.

If it weren't for these dissatisfactions, human beings would probably continue to live in an era of eating raw meat and drinking blood, and would not be able to move forward.

Developing sailing ships in the tribe is of great benefit to the tribe, as it can greatly enhance the tribe's ability to sail long distances.

As a person coming from the future, he knew clearly the significance of large ships!

Moreover, compared with long-distance land transportation and faster and more advanced air transportation, long-distance water travel has the lowest requirements and is the easiest to achieve.

Land transportation seems easy, and people can walk on foot when they are two or three years old.

But this is only for short distances.

Long-distance things involve all aspects.

Not to mention anything else, just the idea of ​​building roads is enough to discourage people if all conditions are not met.

Building roads through mountains and bridges over rivers is a breeze when it comes to doing such things.

The investment and technical requirements are simply too high.

Of course, it is not the roads that have high technical requirements, but the vehicles traveling on the roads.

For long-distance transportation, ox carts, donkey carts and other such things are not cost-effective.

But Han Cheng couldn't make a car that ran on oil or electricity.

Just thinking about the various processes, technologies, and materials involved in the various components of a car, Han Cheng's heart was filled with cold despair.

He really didn't have the ability to produce these things in his lifetime.

As for the more technologically advanced aircraft, he also felt as if there was cold icy rain hitting his face.

Compared with these two modes of transportation, water transportation is much better.

There is no need to worry about building roads. The many rivers and lakes that are spread across the land are the best waterways.

All we need to do is continuously improve the shipbuilding technology and navigation means.

Not to mention steamships, wooden sailboats alone are enough to travel the world.

The huge fleet that Zheng He used on his seven voyages to the West was composed of wooden ships.

Magellan, whose fleet seemed extremely shabby compared to Zheng He's, also accomplished the feat of sailing around the world by relying on wooden ships without any machinery installed!

Because he knew history and some miscellaneous things that people in later generations somehow knew, Han Cheng knew a lot about these things.

Be able to distinguish which one is feasible under current conditions.

This matter is settled like this!

After Han Cheng thought about it for a while, he patted his knees and made the decision.

When it comes to long-distance transportation, the priority is water transportation!

As for land transportation and air transportation, they will develop slowly.

Of course, Han Cheng said that he really could not do anything to make it reach the level of the great country where he lived in later generations.

However, just because you can’t figure it out yourself doesn’t mean the tribe can’t develop.

When I have nothing to do, I can record what I know about car and aircraft manufacturing, as well as the various effects that can be produced after the successful construction of cars and aircraft, and their significance to the tribe.

Then when I have nothing to do, I will tell and record some stories about these aspects to the people in the tribe, so that they can know these things and develop a yearning for them.

With aspirations and a direction to work towards, there will be hope.

Humans are often creatures with amazing and terrifying perseverance.

Driven by hope in our hearts, miracles can often be created.

Han Cheng was thinking this in his heart, and suddenly remembered a similar joke, but it made a lot of sense.

It is said that there are three types of stupid birds in this world.

One is the bird that tries hard to fly first and eventually succeeds.

The other type is the lazy and stupid bird that lies in its nest and doesn't fly.

The last type is the most hateful. They are too lazy to fly, so they lay eggs in the nest. After the baby birds are hatched, they let them fly towards their lofty ideals.

Han Cheng felt that his current mentality and what he was about to do were very similar to those of the third kind of bird.

If you can't do it yourself, leave it to future generations and let them do it.

Thinking this in his mind, he found it quite interesting, smiled and shook his head, throwing this rather strange thought out of his mind.

Then he took out a folded and stretched-out piece of paper from his backpack.

Then he took out a smooth wooden board similar to a drawing board.

Fix the paper to the drawing board with a few small bronze nails and start painting.

Seeing Han Cheng lay out these things and start to paint, the people on the same boat with Han Cheng and the people around him suddenly became quiet.

He always speaks in a low voice and does things very quietly.

The boat sailed on the river, the scenery on both sides was picturesque, and the clear river water was rippling with waves.

Time passes by as the river flows.

It is true that time flies like an arrow, passing day and night.

A world map appeared on the paper in front of Han Cheng who was painting.

Of course, it's just an outline.

As a liberal arts student with a good grasp of geography, it was not a difficult task for him to draw the outline of a world map that was not very standard by hand.

Especially things like this, after he had done it more than once since coming into this world.

After drawing the outline, Han Cheng held the pen in his hand and looked at it for a while. After thinking, he began to write on the map.

He wrote on a continental plate that there was a kind of tree here called the rubber tree. If you cut a hole in it, you can get rubber from it and make rubber tires, which are the best choice for making car wheels.

After making this mark, Han Cheng thought about it and drew the equator.

And draw the tropical range.

At the same time, he also wrote down some of the things he knew about the growth habits of rubber trees and what they looked like.

After writing this, Han Cheng's gaze stopped on the Eurasian plate, and then he drew a circle closer to the southwest.

It is marked that there is a lot of oil here. The oil is buried underground and is a black and sticky substance that will catch fire when it encounters fire.

Gasoline, diesel and kerosene lamps can be separated from it.

Among them, gasoline is an indispensable fuel for automobile operation.

It is like the grass that a bullock cart feeds to a cow...

…

Time passes, and Han Cheng is still marking on the world map.

At this point, many things have been marked on the map.

He had marked down what he knew of the raw materials needed to build a car, and the places where they were found in greatest abundance.

Han Cheng wanted to put the map away, but then his eyes fell on an island not far to the east of the Eurasian continent...

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