The propeller is the propeller, and Li Yi didn't take any detours when he designed it.

The calculation of the propeller was also calculated by him little by little, and at the same time the data was given.

When the craftsmen were making the mold, they picked it a little bit and finally figured out a mold.

When there is no problem in terms of transmission, the propeller rotates, and the thrust generated is incomparable to other propellers.

"My Zhuangzi's craftsman is the most awesome, what is the five-axis linkage? What to print? Do I need to be that precise? ”

Li Yi was excited, this speed, in a water battle, can scare the enemy to death.

Li Chengqi, three adults and a child, obviously couldn't understand what Li Yi was talking about.

"Big brother, I figured it out, don't build steam engine trains first, if you want to build a steam engine ship."

Li Yi came to inspiration, and he didn't bother with the railroad tracks.

Transportation requires speed, while power is needed when the current is countercurrent.

Paddle steamers can provide power, with a large force surface and a lower power conversion ratio than propeller ships.

If you install propellers and steam engines on a ship of thousands of stones, the section of the Yellow River to Hukou Waterfall can save dozens of times the time.

The Yangtze River is even more powerful, and the slender man has to change his career.

Seafood can be eaten without water, and all rivers that can pass steam engine ships will be an important channel for transportation.

Everyone still doesn't understand what steam engine trains and steam engine ships are, the only thing they understand is that Li Yi has always been able to come up with technology that people dare not think of.

Ships that don't care about the direction of the wind can sail against the current at will, and now there is a ship that can go against the current at a faster speed.

"Brother Yi, build this ship a little bigger, and the merchant will take the initiative to pay taxes." Li Longji came up with a great idea.

Merchants pay taxes, and with receipts, they can use such ships.

If you don't pay it, pull it slowly.

Fiber pulling is not free, to give money to the slender man, the same goods, one ship arrives first, the other ship arrives several days late, the difference in price is estimated to make up the tax back.

"San Lang, is it possible to eat fresh Shudi with a lychee? Walk the Han River, and then relay with horses. ”

Queen Wang has never eaten fresh lychees until now, and what she thinks of is the lychees in Shudi.

Historically, Yang Guifei ate lychees from Shudi, not from Lingnan.

Lingnan's lychees are too late to be expedited even if they use 800 miles.

The lychees in Shu can be delivered by flying in two days.

"Sister-in-law, it's easy to eat lychees, I have a way to keep lychees fresh for twenty or thirty days."

Li Yi thought of something important, the previous method of storing things was to use candles to consume oxygen, but carbon dioxide existed, and ethylene was also produced.

But there is another way, to preserve the lychee is to control the growth response of the lychee, so that it is in a dormant state.

"What's the best way?" The queen's eyes widened, and the little ones glared together in tacit understanding.

Another person dares to say that if the lychee is kept fresh for twenty or thirty days, the queen will kick people into the water with one kick.

"Flute, refrigerated. Wrap the lychee tightly with flute film, then put it in a jar with ice cubes on the outside. ”

Li Yi said what he could do, the cost was high, but it was less than using a fast horse to transport money.

The flute film is peeled out of the reeds, how expensive is the ice cube?

Queen Wang blinked: "Chilled on the flute film?" ”

Li Yi nodded: "Yes, many fruits can use this method, such as bananas." ”

Li Yi swallowed his saliva as he spoke, of course, he wanted to eat more than just bananas.

He doesn't have plastic film, he can put a few more layers of reed film.

If you feel that the reed membrane will be breathable, brush a layer of glycerin after several layers of reed membrane, and then paste the reed membrane.

In order to eat, you can fight.

Otherwise, what kind of emergency can I send to such a thing as a banana?

Green bananas in a backpack and riding a horse?

Four people, no, the little ones don't count, three people have heard of such a way of keeping fresh for the first time.

"Brother Yi, easy to use?" Li Longji was moved, he also loves to eat good things.

"Take the cucumber first, pick the cucumber, wrap it, put it in a place with ice cubes around it, you can't stick it, and keep it at about four degrees above zero."

Li Yi wasn't sure, he had to try.

In the past, he wrapped cucumbers in plastic wrap and put them in the refrigerator for half a month.

Switch to a flute film, if you can, then a lot of fruit will do.

With the addition of new ships, fruits from the south can largely be tried to be transported to Chang'an.

The premise is that others in the middle are not allowed to stop, and the road is unimpeded.

Li Chengqi showed an excited look, he found a money-making business, generally too far away, Brother Yi is not in a hurry to operate, it is all for him This alliance.

Brother Yi's view of money is that when you need money, you can take something out and make a lot of money.

When you don't need it, you sell things slowly and normally, and the money never seems to be very much, but it is never lacking.

"Brother Yi, can you put it aside first, find a boat, why is the propeller you said in the water, the speed is fast?"

Li Chengji wants to learn this.

Li Yi was speechless, big brother, you want to learn this? Work done and pressure differential? Where shall I begin with you?

Do you want to learn the principle of propeller blade surfaces? Do you still have to learn the distance ratio?

Even no, it's not a field that can be involved even evenly.

After thinking about it, Li Yi decided to use a popular method.

"Big brother, look, the paddle wheel rotates, half of it will be on the water, and when you turn to it, it's like swimming, can you paddle with your arms on it?

A person is always paddling underwater, a person is above the water half of the time, and the paddling time is different.

When the paddle wheel sinks into the water, when the wheel rotates, the water will be fixed first, and the propeller will always recede.

The place where it retained the water was only a small piece, that is, with the same force, it was used to push, and half of the paddle wheel was idling. ”

Li Yi can only introduce it like this, otherwise it will be too profound and others will not understand.

Li Chengqi listened, smiled and nodded, meaning...... I went back and thought about it slowly, but I really didn't understand.

Li Yi controlled the rudder, slowly turned a big corner, and the boat returned to the dock on the side of the Li family Zhuangzi in Bashui.

The thin ice on the river was all loaded, and everyone disembarked.

The little guy was held by the queen and kicked, and his two little legs imitated the appearance of the adult just now.

"Brother Yi, when the river above Hukou Waterfall circulates after the beginning of spring, put such a boat on it, transport the troops, and go directly to Tubo."

Li Longji no longer thought about the transportation of fruit crisper boxes, and he found that the ship of this propeller was fast.

It is easy to go downstream, but the difficult thing is to go against the current, and it turns out that it is a steamer that is ready to use paddle wheels.

Now that it has changed, Brother Yi is idle and bored, and he actually came up with a new thing.

The boat track test of Hukou Waterfall was successful, and the upstream and downstream can be connected.

The propeller boat placed underneath does not need to take the track, the two sections are separated, and the other boats are used to walk, and it can be reloaded when the time comes.