Su Yu calmed down and took a good look at the technology tree.

The technology tree is divided into military technology and people's livelihood technology. Among them, even the cheapest technology projects require millions of people's energy to light up.

But as long as the lighting is successful, you can get all the theoretical knowledge of the technology and the relevant design drawings and so on.

On the science and technology tree, it is roughly divided into the steam age, the electric age, and the information age...... In the future era of science and technology, Su Yu's current permissions cannot be viewed.

According to Su Yu's original plan, he wanted to directly accumulate enough people's energy to directly make the scientific and technological level of the Yanhuang Empire skip the steam age and enter the electric age.

But at present, it is a little difficult for more than 30 million people's energy to light up several key core technologies in the steam era!

The Steam Age is the basic technology era of the technology tree, and there are not many technology leaves in it, but it needs to consume a lot of people's energy.

Su Yu touched his nose and shook his head with a wry smile: "System, open all the technological leaves of the Steam Age." ”

"Huh~!"

The system screen flickered, pulling the camera to the branches below, on which there were many leaves that were still dimly lit in front of Su Yu.

There are [Principle and Design Drawings of Steam Engine], [Steam Train], [Steam Ship], [Steam Loom]......

There is no doubt that the steam engine is the core foundation of the scientific and technological items in the steam age!

In Su Yu's previous life, the steam engine was a sacred object that appeared in the first industrial revolution, and it was also a key item that opened the curtain of the steam era!

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

The working process of the steam engine is as follows: first, the heat energy of the fuel combustion process boils the water in the boiler (gasification), second, the generated steam has a certain pressure, and third, the pressure of the water vapor pushes the piston to move.

The energy conversion of each step: first, the chemical energy of the fuel is converted into heat energy through combustion (in fact, it is a chemical reaction); second, the heat energy of combustion is transferred to the water in the boiler (this step is the transfer of energy, there is no conversion); third, the water vapor produced by the heating gasification of water has a certain pressure, and this pressure is mechanical energy, that is to say, the heat energy is converted into mechanical energy; fourth, the mechanical energy of water vapor pushes the machine to operate.

The whole process of the steam engine is that the chemical energy of the fuel is finally converted into the mechanical energy that pushes the machine to work, and in Su Yu's previous life, the steam engine mostly used coal and other combustibles.

And in the Sifang Continent, or the Eastern Continent, there are many items, raw materials, coal, and other items that are different from the previous life.

The most abundant in the Four Continents are energy ores and Warcraft crystal nuclei, from which excellent blacksmiths and alchemists can extract energy and use chemical effects that conform to the rules of the world of the Four Directions to produce and create some magical items.

Such as elixirs, enchanted weapons, armor, carriages, scrolls, and so on.

Therefore, even if Su Yu vaguely understands some knowledge of the principles of the steam engine, he will not be able to make a steam engine, after all, no matter how much fuel is needed for a small steam engine, it itself represents the development of a society.

Many steam engine parts, gaskets, and other things were not something that the Yanhuang Empire could create at this time.

However, Su Yu doesn't need to worry about this problem if he has a technology tree, as long as he can light up the [Principle and Design Drawings of the Steam Engine], he can obtain the design drawings of the steam engine optimized by the system according to the special world conditions of the Four Continents.

This drawing, as long as it is placed in the virtual building blacksmith shop, can produce more design drawings and assembly processes, detailed to the manufacturing method of each gasket and part, and also comes with an instruction manual.

However, the premise is that Su Yu has to light up the two technological leaves of [Scientific and Technological Equipment and Internal Qi, True Qi, and Immortal Qi Fusion and Enhancement Theory Research and Development], and [Combination and Improvement of People's Livelihood Technology and Internal Qi, True Qi, and Immortal Qi Lifeforms], and then he can open and light up the [Principles and Design Drawings of Steam Engine] leaves.

That's right, these two kinds of leaves are the prerequisites for lighting up all the technologies in the entire technology tree, and they must be equipped to allow the steam engine to use energy ore and Warcraft crystal nuclei to burn and convert energy substances and generate mechanical energy.

Even when necessary, a good warrior can use the combustion of his own internal force to provide powerful mechanical energy to the steam engine.

Su Yu was on the science and technology tree and had a preliminary understanding of the process.

He opened the three leaves and took a detailed look at the energy needed to light them.

[R&D of scientific and technological equipment and internal qi, true qi, and immortal qi fusion enhancement theory]: To light up the leaf technology, 10 million points of people's energy are needed.

[The combination and improvement of people's livelihood technology with internal qi, true qi, and immortal qi lifeforms]: To light up the leaf technology, it takes 10 million people's hearts to energy.

[Principle and design drawings of the steam engine]: To light up the leaves of this technology, it takes 10 million points of people's energy.

The people's energy of these three science and technology leaves adds up to 30 million people's energy!

If this is all lit up, all of your "deposits" will be gone!

However, these are core technologies, and the people's energy required is naturally high, and they can be regarded as entry-level technologies, which are much cheaper than the high-tech technologies of [laser theory and basic knowledge].

Su Yu glanced at his people's energy balance, and couldn't help but cover his forehead and sigh, how else can he choose, light it up!

A steam engine can bring great benefits to Su Yu, and it can also make earth-shaking changes in the Yanhuang Empire.

Su Yu has always reminded himself that although the Yanhuang Empire is militarily strong now, it does not mean that the Yanhuang Empire is strong in other aspects, and at most there is only one economy that is good. The strength of an empire and a nation needs to be improved from all sides.

And technology is Su Yu's best weapon.

With the steam engine, Su Yu can bring the Yanhuang Empire into the industrial age!

Do what you think!

"System, I'll light up these three tech leaves!"

Su Yu took a deep breath and whispered to the system in his heart.

[Order Adoption ......]

【People's Heart Energy Detection......】

[The people's energy is enough!]

[It's lighting up!]

As a series of system prompts sounded, Su Yu's stored people's energy began to be deducted quickly!

Of the 33.9 million points of people's energy, only a fraction of 3.9 million remains.

As the energy of the people's hearts continues to decrease, strands of milky white silk threads appear on the system screen, and wisps of energy silk threads fill the technological leaves until the leaves are completely lit up, emitting a milky white light!

Not glaring, it's a gentle force.

As the three technological leaves were lit up, streams of energy could be seen through the system screen and appeared in front of Su Yu, and then this energy floated down on the desk, slowly condensing into three exquisite design drawings on the desk.

Su Yu reached out and picked up the design drawings, the touch was soft and delicate, he didn't know what material it was, but he knew the preciousness of these things.

Can it not be precious?

These are three pieces of paper exchanged for 30 million people's energy!

The expensive price made Su Yu's flesh ache.

"Open the blacksmith!"

Su Yu didn't say a word, and ordered in a deep voice.

"Huh~!"

The system screen transitioned, jumping to the page of the virtual building blacksmith shop, and then Su Yu put the three drawings on the altar in the center of the blacksmith shop.

The light flickered, and the blacksmith absorbed three drawings, and then a series of parts construction, design drawings, and detailed theoretical data all popped up!

Su Yu can obtain any detailed technical information about any of the three tech leaves through the System Blacksmith, including the detailed process of building a steam engine.

It worked!

Then it's almost time to build!

Su Yu took a deep breath, endured the tremor in his voice, and shouted to the outside: "Come on! Come on!"

"Emperor, the ministers are here!"

Several brocade guards and the Imperial Forest Army hurriedly rushed into the study and knelt on the ground, extremely respectful.

"Go! Let Chen Qun mobilize a group of the best alchemists, blacksmiths, and craftsmen from the Ministry of Industry for me!

Su Yu commanded in a deep voice.

"Whoa!"

The Jinyi Guard and the Imperial Forest Army were stunned, they thought that there was something important about the emperor's eagerness, but they didn't expect to find a few alchemists and craftsmen.

However, since it was something ordered by the emperor, they couldn't think it through, and they had to strictly implement it.

Because, Su Yu is the sky, and the emperor is everything!

The second more.

Someone in the family is hospitalized.,The author needs to be visited and taken care of.,I can only update two chapters today.,I hope you'll forgive me.。

(End of chapter)