Da Ming started to ascend the throne

"System, you cheating thing, you just reward these things? Mine is 50 points. Nima is too dark, too greedy!"

"Ding, the host must know how to be content. Everything you have now is given by the system. Can't the system receive some benefits? System upgrades also require points. If there is no 100% discount, these things need [-] million points! "

"I go……"

Zhu Youjian scratched his head and felt that what the system said made sense. Although the prizes were super expensive, they could understand because of the different era.

Besides, if there is no system support, he would have hanged himself on Meishan Mountain now.

"Hey, forget it, I don't care about you, I'm giving you [-] points to upgrade!"

Zhu Youjian also generously donated [-] points to the system. The stronger the system, the stronger he is too. It's worth it!

But after half a day, there was no movement in the system.

"Fuck, the system is still angry."

Zhu Youjian hurried into the system to check the points.

It turned out that the points had been deducted by [-] points.

"Damn it, I received the benefit, and I didn't even say thank you..."

Regardless of the system, Zhu Youjian first has to check the prizes he has drawn.

When the mind enters the system warehouse, the first thing that catches the eye is General Nashimen Shenwei.

Zhu Youjian was immediately taken aback by the ten cannons.

This mighty general is so big that a large living person can enter through the muzzle of a cannon.

Looking at the [-] Shenwei General's special shells piled up next to him, they are also extraordinary.

Each cannonball weighs more than five hundred catties, almost as tall as an adult.

Looking at the manual, the cannon can be disassembled and shipped, and then reinstalled when it arrives.

Zhu Youjian nodded, he was very satisfied with General Shenwei.

Looking back at the steam engine, this thing is actually really good.

Zhao Shizhen was given the steam engine blueprint a while ago, but they haven't figured it out yet.

Now that there is a sample for them, the steam engine problem should be solved.

A steam engine is a reciprocating power machine that converts the energy of steam into mechanical work.

The advent of the steam engine caused the Industrial Revolution in the 18th century.

Until the beginning of the 20th century, it was still the most important prime mover in the world, and then it gradually gave way to internal combustion engines and steam turbines.

When a steam engine works, it needs a boiler that boils water to generate high-pressure steam. Through the combustion process, water boils into steam, and the steam expands to push the piston to do work.

The world's first steam engine was a spinning ball invented by the ancient Greek mathematician Hero of Alexandria, which was the prototype of the steam engine.

In 1679 the French physicist Denis Pabon, after observing steam escaping from his pressure cooker, built the first working model of a steam engine.

The contemporary Samuel Moran also proposed the principle of the steam engine.

Thomas Seville in 1698 and Thomas Newcomen in 1712 built early industrial steam engines.

They all made their own contributions to the development of the steam engine.

As for the principle of the propeller, it is very simple, and the blacksmiths of the Ming Dynasty were able to manufacture it.Mobile terminal../

Zhu Youjian didn't have any idea when he heard the system report rewarding water trucks and dining trucks.

He thought this thing was useless, but when he saw the water truck dining truck, Zhu Youjian suddenly smiled.

The so-called waterwheel is a large iron tank with some water taps underneath.

But the chassis is very beautiful, all of which are made of six wheels, made of pure iron, because the bearings are very good, the waterwheel is very flexible.

He thought for a while, this thing should be best given to Yue Fei.

The Mongolian Yuan Dynasty has a vast geography, and the water source is not very sufficient. It can be used in an emergency when marching and fighting.

The structure of the dining car is similar to that of a water wheel, like a small house. When marching and fighting, there is no need to dig holes and bury pots on the ground to make food.

Put some coal on the car, and cook directly by lighting a fire. Compared with the original cooking method, there will be no traces left, and it is also suitable for war.

Looking at the remaining walkie-talkies and miner's lamps, Zhu Youjian was angry and funny.

The miner's lamp is still somewhat useful, it can illuminate at night, and the worst is to throw it away when the battery is used up.

But what's the use of the walkie-talkie? It can't be used at all now.

But thinking of the magic of the system, he decided to give it a try.

So I took out two walkie-talkies and turned on the switch, and there was a buzzing sound.

Zhu Youjian was overjoyed, and immediately adjusted the walkie-talkie to a frequency, and said to Yue Nu:

"Ah Qing, take this thing and go outside, and when you hear what I say, you must answer, hurry up!"

"obey"

Ah Qing took the walkie-talkie, turned it up and down, left, right, and looked at it several times, but couldn't understand anything.

"Your Majesty, what is this thing, can it kill people?"

Ah Qing's words made Zhu Youjian almost burst out laughing, but thinking about Ah Qing's era, he stopped smiling.

"Pfft... No, no, it's for dialogue, you will know what's going on soon, go out quickly, at least five hundred steps away from me."

"Oh, Ah Qing obeyed!"

Ah Qing agreed, and disappeared in front of Zhu Youjian in an instant with the movement of her feet.

Zhu Youjian got up to see the distance between Ah Qing and him, but found that Ah Qing's beautiful figure floated out of the Qianqing Palace by itself.

"You silly girl, why did you run so far!"

Zhu Youjian shook his head. He felt that Ah Qing ran too far, and it was very likely that the walkie-talkie could not be contacted.

Turning on the walkie-talkie, Zhu Youjian began to speak:

"Ah Qing, where are you now, please answer..."