When Changsun Xin came to the river, there were many people standing on the shore, all looking at the boat.

Compared with other ships, this ship is 20 zhang long and about 4 zhang wide.

There was a chimney on top of the ship, and black smoke was gurgling.

No oars, no sails, no big wheels on either side, it should be the kind of boat with propellers underwater.

But the boat is too big, how many people step on it?

And the ship seems to be made of iron, not wood.

"Quick, how fast can this be the fastest?" Li Longji stood on the deck at the bow of the ship, feeling comfortable.

"It's faster than stepping on your feet, you can run more than 20 miles in half an hour, and if you are the fastest, 30 miles." Li Yi introduced.

Along the way, he introduced many things, including boilers, pressure gauges, and how to weld iron boats.

The pressure gauge uses a spring tube, which is the simplest one, but it does not need to be filled with silicone oil.

How to measure the pressure value of the spring tube? Isn't that the medical oxygen cylinder he exchanged, and the one that has a pressure gauge?

Use that table to detect and locate the current steam engine pressure gauge value, so that it can be determined, and more can be manufactured.

The welding technology belongs to fire welding, which is made with acetylene and made by itself.

Anyone who has the technology to make calcium carbide acetylene can make steel, because the temperature required for the manufacture of calcium carbide is higher than the melting temperature of ordinary steel.

Then the acetylene was made with calcium carbide and welded with an oxygen cylinder, so that the iron ship appeared.

He also specially made out the water compartment, and what others saw was the boat, which actually reflected the technical background of the Li family Zhuangzi.

Just this ship, I wrote a paper and sent it to people in other countries and the state of Fan, but after reading it, I still couldn't build it.

At present, the maximum speed of the ship can reach seventeen knots, and the propeller in this situation has too much pressure on the shaft and is prone to breakage.

Just keep the speed of twelve or thirteen knots, and run twenty-two kilometers in half an hour.

If the ship is going to the Americas, it needs to go through the Strait of Magellan, because there is no Panama Canal.

It's like going to Africa without the Suez Canal to enter the Mediterranean, and you have to go around the Cape of Good Hope.

Take the western route from Datang, and before going to Africa, you have to cross the Strait of Malacca, because when Li Yi came over, there was no Kra Canal, which was the one in Thailand.

In fact, if the resources are sufficient, you can go directly to South America from the Cape of Good Hope, across the ocean, the Atlantic.

To the east, you will take the Pacific Ocean, and you will arrive in Peru, Ecuador, and Chile.

Bypassing the Strait of Magellan to Argentina and continuing up to Brazil, there are plenty of good things to do here.

Buds, peppers, tobacco, and everything are here, silver and gold.

If you deviate a little, the Mexican cactus is also very good, big enough to be roasted and eaten.

Of course, if you really go east to the Americas, you can't go there directly, you need to go a little south.

First to the Philippines, Indonesia, Papua Guinea, Solomon Islands, Fiji, Tonga, Cook Islands, French Polynesia, Pitcairn Islands, Easter Island......

Anyway, the islands along the way have to be walked to replenish fresh water.

If others want to go to sea, they will have to fight their lives all the way, and maybe they will walk to the Hawaiian Islands.

Li Yi has a map, and the latitude and longitude of all the places that can be replenished are marked and the location is determined.

The fleet itself thinks about which island to supply and makes the auxiliary like this, and if it still can't get by, it's stupid to die.

Theodolite, sextant, simple desalination equipment for seawater, and so on are all ready.

Including barreled fresh rice wine, if there is really no water to drink, drink alcohol.

It is even possible to bring ice in the cabin, as well as saltpeter.

Carrots, oranges, and Chinese medicine are equivalent to following the route to look at them and find something to bring back.

The mine does not need to be searched by the people of the past alone, and the place is drawn.

"How long will it take to get to where you said it would take at this speed?" Li Longji discovered the benefits of the steam engine ship, which can always run.

"According to the mathematical calculations, half a month, according to the actual situation, God knows.

Theoretically a month, it should be about the same, but it needs to be winded.

You don't get to the other side of the shore locally, and if you cross by land, people will die. ”

Li Yi wanted something, not to send someone over to take a look.

Disembark from the West Bank and walk through the Amazon rainforest? The feather forest flying rider can't stand it, even if he marks the local harmful animals and insects.

Not to mention the Amazon rainforest, where did Shennongjia, Hubei organize a team to go over and have a look?

"In that case, can you go back and forth for three months?" Li Longji was anxious about the potatoes that Li Yi said, he had eaten the potatoes and thought it was good.

"In the past, there may not have been corn seeds, potatoes, sweet potatoes, rubber trees and other things, let's go and bring back more at a time, gold and silver don't matter."

Li Yi is also anxious, wanting to eat tomatoes and kidney beans, kidney beans are beans and green beans.

Including some nuts, as well as the big apple, and as for marijuana, yes, marijuana can be used as medicine.

Forget about tobacco, take it back and teach the Tang people to smoke dry tobacco pouches?

"Yes, gold or anything is not as good as eating for the people." Li Longji also wants to open it now.

The problem of money is not a problem, if you want money, look for Brother Yi.

"When I come back for the first time, tell the big family and those who are willing to take the risk about the situation there." Li Yi said casually.

"Give them benefits? Let them stop in Datang? Li Longji frowned, no one was willing to compromise.

"It's an excuse, they go out, we set the rules, and if we violate the rules, it's convenient for us to do it." Li Yi had a smile on his face.

"Huh!" Li Longji suddenly smiled, very comfortable.

In the eyes of the people, the proprietor of the Li family Zhuangzi in Bashui, Chang'an, is a very kind person.

The big family felt that Li Yi was indecisive in some aspects and was not ruthless enough.

Actually? Brother Yi acted for the sake of the overall situation of Datang, and there was no situation where he couldn't do it.

He can kill people in person, and continue to live a normal life after killing.

One moment you smash the enemy's head, and the next moment you return to Zhuangzi, you can pick up the little doll and kiss it and lift it high.

Killing, in Brother Yi's opinion, doesn't matter, if you want to kill, you can kill it.

Killing a chicken to eat, will there be a psychological touch?

Brother Yi's killing is like killing a chicken.

"Brother Yi, can you kill a child and a pregnant woman?" Li Longji asked suddenly.

Li Yi shook his head directly: "No, some people kill people to train their courage, that is, to break the moral bottom line and code of conduct when killing their own kind."

My purpose for killing is clear, you should be damned, your existence has seriously interfered with me, so I kill you, or you want to kill me.

Children and pregnant women are not a threat to me, what is the point of me killing them? Prove to others that I am cruel and that others are afraid of me? ”

Li Yi always feels that the difference between humans and animals lies in the fact that human beings have their own judgments and bottom lines.

Indigenous people kill people for food, people can eat too, civilized people kill innocents, the other party doesn't threaten you, why do you do that?

When innocent civilians are killed for the sake of courage, then such people are not actually human.