"That's the way it is." Bi Gou found Li Yi and repeated Song Jing's words.

"Of course, the gears cast in pig iron can be used, and the wear resistance is good, but it can't withstand high strength, and the one in Zhuangzi is steel."

Li Yixian admitted that the gears of cast iron are fine, and the quality is not very good, unless they are replaced with ductile iron.

"In the application of crankshafts, pig iron casting is not good, and manpower pedaling is okay. Coupled with the cast iron half-shaft, the overall torque is too great, which is not very good. ”

Li Yi introduced the structural characteristics of propeller ships and the material properties of pig iron.

It was concluded that pig iron can be used, but it is easy to break, and it can be pedaled by all human power and can last for a while.

"In that case, why rent?" Bi couldn't figure it out and asked.

"When you talk about renting, I'll just test whether it works or not, and the new drawings that can change gears have been handed over to the workshop.

After the workshop is made, the power and speed can be adjusted, for example, when the water flow is too fast, you need to adjust the gears, otherwise you can't withstand it. ”

The principle that Li Yi said is the same as the bicycle speed change when going uphill, and you can no longer use the front big wheel and the back small wheel.

"Not renting?" Bi Gou found that everyone was worried in vain.

"That thing is expensive, who dragged the boat up, the thing was dismantled, where can I find it? The new propeller will be used by the army in the future, and Zhuangzi will also use it. ”

Li Yi told the truth, things are too precious to rent, and he is afraid of losing them.

Bi Gou put his mind at ease: "It can be loaded on a big ship, and more people will step on it." ”

"No, the material can't withstand that force, and it's possible to disperse the propellers, but it has its own weight.

Later, I made a steam mechanism, drove it with a steam engine, and loaded the ship with coal to boil water.

Carry a seawater filtration device and sail the ocean for a long time, just go further afield. ”

Li Yi has a full set of technology, waiting for the ship, in recent years, the navy has been abandoned.

Even if it is not deserted, the ocean-going ship should be larger and have sails at the same time.

Then build a steam engine ship as a flagship.

On the way, ships can be abandoned and money can be exchanged for the lives of seafarers.

At that time, these seafarers who went to the Americas and came back alive will be a valuable asset, so that they can bring more people to familiarize themselves with the route.

Mainly where the currents are more detailed now, and which islands have fresh water.

There is really no fresh water on the island, so go up with drilling equipment and try it.

Li Yi told Bi Wei his thoughts, and he had told Li Longji and Li Chengqi before, and the two of them expressed their full support.

"So, your mind is not on Tibet?" Bi Gou drew a conclusion from Li Yi's words.

"The matter of fighting Tibet for a few years, it will be settled directly with the start, and there are Turks.

The Turks are not as good as the Tibetans, and the Turks are not developing well internally, and they are fighting everywhere.

So far, what is the background? With a force of martial arts, there is no technology to be used, and there is no reserve to be reserved.

Tibet was a completely slave society, with farming and planting technology, handicraft processing technology, and the ability to produce its own weapons. ”

Li Yi didn't look down on the Turks and didn't take the Turks seriously, but Tubo needed to fight for two years.

Now belongs to the period of accumulating national strength, endure it, and then hit Europe.

"As long as the key technology is not passed on, Lao Bi, we can fight all over the world, and no one is our opponent."

Li Yi is confident that if he suppresses Tianzhu and Da Shi in the next ten years, the loss of his side will be very small.

Bi Gou heard the technique and pondered for a moment: "Xiao Yi, you tell me the truth, your Zhuangzi is not what you exchanged for your life, how powerful is it now?" ”

"A generation of manual lathes has come out, converter steelmaking has come out, and chemistry and physics are teaching children.

Don't look at them going out to be officials, just learn from me. I will take the exam, and if I fail, I will remove him from the office.

Biology is teaching nurses, and they will gradually improve.

The production of glass and the gradual progress of finishing are able to provide basic optical instruments.

Sextants and theodolite can appear at any time, and a few more theodolite will be produced this autumn to measure the terrain, which is better than the current method. ”

Li Yi didn't directly answer how powerful it was, and he couldn't say how many years he was ahead.

Anyway, the foundation has been being laid, and what is really powerful is not what he has produced under his guidance, but what the students have learned.

Especially the farmer and the craftsman, the noun of the craftsman sounds like a low-level existence.

In fact, the craftsmen of Zhuangzi have learned a lot of things, and any craftsman who takes them out is a treasure.

To have a theoretical foundation, to have a craft, not to go out of the Zhuangzi alone on weekdays, so as not to be arrested.

Bi Gou didn't understand, anyway, he felt that it was not ordinary, and his understanding of the technical side was limited.

"It's warm, bring more hot sauce to the old man, it's hot, it's hot, it's on the fire, and you have to eat the water." Bi Gou instantly changed the subject.

"Isn't it hot to eat hot sauce?" Li Yi wanted to talk about it from a medical point of view.

"Hurry up, when the cow is killed again, send me beef sauce, don't send it to the political affairs hall, unless you prepare more, they will rob me of my things."

Bi Gou didn't want to listen to the doctor, so he wanted to eat hot sauce.

"It's there now, send it home for you, or do you take it?" Zhuangzi got a new dead cow yesterday.

When ploughing the land, he suddenly wanted to top the master, but fortunately there was a plow on his body, and the master ran away, found someone to kill the ox, and sent it to the Li family Zhuangzi.

Li Yi has tested it, no problem, I can eat it.

As for why the cow should top the owner, it is not for him to consider.

It may be that the owner is too harsh on the cow, or it may be that the cow itself is depressed, either way, the cow must die.

At that time, he still had an old husband and wife, and he bought cattle to raise and work.

When it's time to sell, the cow will be on top.

There was also a single person who wanted to sell the cattle, and the price was not negotiated, and he took the cattle home, and the cattle were topped.

It may be that he feels that his master is going to sell himself, and he will be killed.

What is the state, Li Yi doesn't know, he is not a cow.

The oxen on the Zhuangzi are very good, and they say that when they are working, they should plow the oxen, and the oxen will stand and wait, and then they will start plowing the land.

After ploughing the land, the cow should be bathed, and the cow will also stand and enjoy, and then eat.

I haven't had a bullish temper and get along well with people.

When Bi Gou heard about it, he didn't express his opinion, he left with the beef hot sauce, and was ready to go home to eat noodles in the evening.

In the evening, the news spread that Li Zhuangzi had a new boat that could fly close to the water.

In the end, it was said that the boat of the Li family Zhuangzi encountered the shore barrier, flew off the land for a while, and returned to the water.

This is more restrained, otherwise it can be transmitted to fly to the sky, fly higher and higher, and fly to the sun.

In the evening, Li Longji's family of three arrived, and by the way, they sent a freshly killed cow.

He knew that Li Yi was unwilling to kill the livestock that worked, and he was soft-hearted and timid, so he arranged for people to kill them, and he didn't do it himself.

In fact, this cow is not a working cow, it is specially raised for the royal family.

It is fatter than the cattle that work, and it is estimated that there will be problems when used for work.

Generally, cattle raising and working should be taught from an early age, otherwise cattle will not understand.

It is better to have a big cow to work, and a small cow to watch, grow up in a working environment, and then let it plow the land, it will cooperate better.

"Brother Yi, Hukou Waterfall has started sailing, and it is very successful." Li Longji came specifically to report the good news.