As soon as I said this, several women laughed at me with some disdain: "But the question is, where is the Yangtze River? Where is it? We are now on Qiongzhou Island in the direction of the South China Sea, but the Yangtze River is in the direction of the East China Sea! The distance between them is 108,000 miles! How can we 'walk the Yangtze River' method?"

I didn't care, and continued: "You come to compare the distance on the map, is the distance from the mouth of the Yangtze River to the Hanyang area nearly half less than the distance from the Leizhou Peninsula to the Seoul area?"

A few women, chattering.

Su Wu said: "Yes, such a comparison is indeed nearly half." But Lele, I don't understand, our Qiongzhou Island is far from the mouth of the Yangtze River, but it is much farther than Qiongzhou Island from the Hanyang area. How can we get from the mouth of the Yangtze River to the Hanyang area?"

However, my cousin was smarter, and by this time she had already understood my thoughts, and said, "What do you mean?" Do you want to take a boat by sea, walk along the southeast coastline of our country, start from the Leizhou Peninsula, go all the way to the mouth of the Yangtze River, and then follow the Yangtze River to Hanyang?"

"That's right, that's it!"

In fact, just now, I had this idea in my heart.

Tian Xiaxia said: "But if you go this way, judging from the map, we have made a big detour! That distance is more than twice as much as the direct route from the Leizhou Peninsula to Hanyang." ”

I laughed, "Even if it's twice the distance." It's also going to be much easier and much less time-consuming. Do you believe it or not?"

Tian Qiuqiu said: "But rowing is also very strenuous!"

I shook my head and said, "No effort! We don't have to row, we can make a sailboat and let the wind blow us all the way to the mouth of the Yangtze River!"

My cousin's eyes narrowed: "Build a sailboat?"

I said, "yes, that's a good idea, right? In fact, sailboats go very fast, one or twenty kilometers per hour. The speed of the sailboat we built can only travel 10 kilometers per hour. ”

"We traveled during the day and stopped the boat to rest at night. Every day we set off at nine o'clock in the morning, bring lunch, do not dock at noon, and then anchor at four o'clock in the afternoon, and go ashore to set up camp for the night. If you do the math, in seven hours, we will be able to walk 70 kilometers in one day! Excluding some people who cannot sail in stormy weather, in fact, we will be able to reach the mouth of the Yangtze River from the Leizhou Peninsula in less than three months. ”

"Because it's mostly the wind, it's my business to take the sails. You don't have to put in the effort, so it's going to be easy for everyone. If any of you have a stomachache or a menstrual period or something, it won't get in the way, just stay in the boat, and it won't affect our daily itinerary at all. ”

Several women knocked me on the head with red faces: "Can you, don't keep mentioning this matter!

Holding my head in my hands, I continued, "And this sea route is much safer than the land route. We walked close to the coast, not afraid of trekking, not afraid of sea beasts, and quickly avoided wind and waves. It's just to prevent a typhoon from making landfall. Food is abundant by the sea, and water is easy to find on the shore. All kinds of conditions are very favorable to us!"

"In addition, after arriving at the mouth of the Yangtze River, a section of the waterway in the lower reaches of the Yangtze River has a very slow current, and we can still hang our sails and move forward, saving our leg strength. By the time we really need to go ashore and walk, it is estimated that there will only be the last 100 or 200 kilometers left. ”

"At that time, we walked along the alluvial plain on the edge of the Yangtze River, all the way was smooth, basically did not need to climb over any mountains and ravines, and there was the entire Yangtze River on the side to be a guide, so we were not afraid of getting lost at all. It didn't take a month or two to get to our destination. ”

"The overall time is calculated as two or three months of shipbuilding, including three or four months of sea voyages, plus two or three months of land travel, we will be able to reach our destination in less than a year! This is at least half of the time and half of the physical strength compared to crossing directly from the land to Hanyang. safety and security, not to mention. ”

"Let's talk about it now, what about my plan?"

I licked my lips and explained for a long time, my mouth was dry.

The women were smiling and didn't want to praise me, but they had to admire the way I looked.

"Of course you're up to the mark!"

"That sounds really good. ”

"It seems to be a lot easier. ”

"The main thing is that you don't need to walk much, and you can take a boat, which is the best. ”

My cousin raised doubts: "But Lele, do you know how to build a ship? To build a ship that can hold six of us and can carry at least two or three storms at sea, it takes a lot of technology." We don't have the technology to build ships, and we don't have the sheet materials for shipbuilding, so how can you build them? You see, on the coast, there are waves of one or two levels at any time, and our sailing ships must have at least four or five tons of displacement, right?"

I said, "It's easy. The technical difficulty of the ship is too high, and we will definitely not be able to build it. But I can build a bamboo raft! A bamboo raft can't turn over, and it can carry wind and waves, which is much better than a boat. I'll build it a big bamboo raft with seven or eight tons of drainage, not to mention the first or second level wind, I dare to carry the fourth or fifth level wind!"

My cousin said, "That's fine." Bamboo rafts are indeed safer. But what about the sails?"

I said, "Don't we have two big canvases at home? That's big enough! It's just how to do this, we have to study it carefully, I don't know how to do it yet." Lady, you should know that, right? I heard that this sailboat can go against the wind, and what is the principle of it?"

My cousin muttered, "I know a little bit. Walking against the wind seems to take advantage of the Bernoulli effect, similar to an airplane. It is the side where the air flow speed is fast, and the pressure is small. One side is big and the other is small, and naturally there is force. So that the plane was lifted into the sky. And the sailboat, too, was pressed forward in this way. In fact, the biggest source of power for sailboats is the Bernoulli effect, which is not just pushed by the wind. We can go back and make a model to test it. ”

I said, "That's fine." Oh, and the knowledge of the currents and monsoons on the coast of our country, remember?"

My cousin groaned again: "This ......"

On the other side, the girl rushed to say: "I remember, I remember! I haven't been learning for long in geography textbooks!"

And they all looked at her together.

Kexin raised a small face and pointed to the map: "The southeast and southwest winds blow in summer, and the northwest wind blows in winter." If we want to go from the Leizhou Peninsula along the coast to the mouth of the Yangtze River, summer and autumn are the best, and it is a good wind. As for the currents, they must also be in response to the monsoon, and they will flow as the wind blows!"

"Oh, really?"

After listening to the hearty explanation, a relatively complete travel plan came to my mind!

(End of chapter)