This is a piece of the world located above the imperial city, what is the top of the Forbidden City? When the Dao Court stands, Li Bai just entered the Dao Court World, he only feels that this is a palace, yes, the whole world is in a palace.

"Follow me. ”

The master of the Gongge Pavilion walked in front to lead the way, and the two of them walked through the huge palace, but they never met a single person.

"Pavilion Master, why haven't I met a living person after walking in the palace for so long?"

Li Bai couldn't help but ask, feeling that such a large place was sparsely populated, and it seemed a little gloomy.

"The guards of the Chen Mansion will all have the art of concealment, how can the guards of the Dao Court be bad? they are all just in the shadows, as for the other pavilion masters and deacons, they all stay in the pavilion to which they belong, and they usually don't move around. ”

Hearing this, Li Bai couldn't help but nodded, indeed, who knows what kind of energy the Dao Court will have as the strongest force of the human race? I'm afraid that the guards are all frighteningly high.

"Li Bai?"

Just as the two of them were walking towards the Gong Pavilion, Li Bai saw an old acquaintance, Lin Jinglei, the deacon of the Punishment Pavilion.

"Lord Lin. ”

Li Bai bowed, and Lin Jinglei saw that the pavilion master next to Li Bai was also busy saluting, although he did not belong to the same pavilion, but after all, he was two levels higher than himself, and the highest official of each pavilion was the pavilion master, and there was a pavilion elder under him, and then he was the deacon. It's like the same agency, where a subordinate of one department meets the head of another department, he still has to be in awe.

"What are you doing here?"

Li Bai looked at Lin Jinglei's appearance and didn't seem to know that he had invented the train, but it was normal, now the train can be regarded as a high secret of the human race, and it is only known to the high-level officials of the Gongge and the Mo family.

"The Pavilion Master invited me to the Pavilion for some things, let's meet again next time. ”

When Lin Jinglei heard this, he didn't ask in detail, knowing that since Gongge was looking for Li Bai to come to the Dao Court, there was definitely a big matter, so he said goodbye and left in a hurry.

Li Bai and the pavilion master were left tossing and turning for a while, and then they came to a door, and the words "organ room" were written on the door beam, and the two doors were very heavy, and they were not cast with ordinary materials at first glance.

"When the meteorite fell in the southern suburbs of the capital, our Gongge took it to study, and all the craftsmen spent a hundred days refining 19,998 catties of nine heavens of dark iron, and cast two dark iron gates weighing 9,999 catties respectively, and the hardness of this dark iron is amazing, if this door is locked, even if the demon emperor can't break it with all his strength. ”

Li Bai looked at these two dark iron gates, and was shocked, this is the handiwork of the Gong Pavilion, and even the Demon Emperor can't enter the cast gate.

And the Pavilion Master walked directly to the door and knocked on the iron door.

"Boom, boom!"

A huge sound sounded, countless gears began to operate, and I saw two huge iron doors begin to slowly open outward, and it lasted for five minutes before the two stone doors were completely opened.

"Please come in. ”

The master of the Gongge Pavilion took the lead in the door, and beckoned to Li Bai, Li Bai walked into the door step by step, Li Bai just came in, and the door behind him slowly closed, but Li Bai had no heart to take care of these, he was already completely impressed by the scene in front of him.

This is an extremely large hall, the height is at least 100 meters, and the shape is similar to a circle, the diameter is more than 500 meters, the walls are filled with wall lamps, countless wall lamps will reflect the whole hall as if it is day, the yellow light shines, it looks extremely mysterious and simple. What frightened Li Bai the most was the people and things in the hall, Li Bai was now on the top of the steps, and under the steps were dense with all kinds of machinery, but the main body and shell of the machinery were made of wood, only gears and the like were made of iron, and there were no less than 100 workers in the entire hall, they were the real essence of the workers, representing the highest technology of this era.

"Wow!"

Li Bai followed the master of the Gongge Pavilion to visit the hall, and let out exclamations from time to time, is this still ancient? Sure enough, it is not a world that is different, electric drills, cutting machines, compressors and other modern equipment are readily available, but the only deficiency is that they are not driven by electricity, but connected to the underground, as if the underground is a power system.

"Pavilion Master, I wonder what provides the power of these machines?"

Li Bai asked, did he believe that there would be mechanical power now, otherwise Gongge would have researched a means of transportation similar to a train a long time ago.

"To tell you the truth, beneath this hall is a huge basement, and every day tens of thousands of laborers constantly turn huge gears to power our Pavilion. ”

The Pavilion Master said, and then looked at Li Bai's eyes full of expectation, Li Bai knew that if the steam engine was successfully invented, it would not only be the train that could come out, but that the human race would have a stable source of power in the future, which would have an extremely far-reaching impact on all aspects.

"Everyone, please stop your research!"

The Pavilion Master suddenly used his tongue to bloom the Spring Thunder, and all the craftsmen put down what they were doing for the first time, and all looked at the Pavilion Master in unison.

"You have been working day and night on the steam engine for a long time, so today I specially invited the inventor of the steam engine, Mr. Li Bai. ”

All the craftsmen applauded, they all looked at Li Bai with admiration, they could hardly believe that such an epoch-making invention was actually made by a young talent, but this was the case.

"Everyone obeyed the order, immediately vacated the hall, and we carried out the final experiment, and by the way, let Mr. Li guide it. ”

As soon as the master of the Gongge Pavilion gave the order, all the craftsmen moved, including many craftsmen of the rank of Ru Linlang, so he quickly moved all the instruments and equipment to the top of the steps, leaving the entire open space.

"Boom!"

Several craftsmen worked together to carry over a machine and put it on the ground, that was the steam engine, Li Bai looked at this machine with a satisfied look, and even admired the Gongge in his heart.

This...... This is too powerful, isn't it? With one of his own drawings and simple instructions, he made a steam engine? But it was also inevitable, Li Bai couldn't help but look at all the machines on the steps, these instruments and equipment were much better than Watt's time, so it was not an exaggeration to make a steam engine, even if he didn't say it, sooner or later he would have studied these engines, but Li Bai advanced the time when all this came.

"Mr. Li, how is this steam engine done?"

Li Bai nodded hurriedly when he heard this, this is simply perfect!

"Boom!"

A few craftsmen moved a locomotive over, Li Bai went up and stroked it a few times, a little amazed, he had never seen this kind of primitive locomotive in his previous life, he had only seen it on TV. Now I see it in this world, which makes people feel emotional.

"But a steam engine and a locomotive are not enough, so you can prepare something as I say. ”

Li Bai quickly told the people of Gongge about the boiler and the train car plus the track, and they quickly understood what Li Bai said, and immediately ran out to prepare, which made Li Bai sigh a little, Gongge and the people of the Mo family are simply born scientists, and they just said it again, and they immediately understood.

Li Bai asked people to find some gears and levers, and soon the boiler was also sent, and several craftsmen connected the boiler and other devices with the steam engine according to Li Bai's instructions, and added a long stick to the steam engine, on which a piece of weight weighing 100 catties was tied.

"Now that the coal can be burned, I'm going to test the thermal efficiency of the machine. ”

Li Bai motioned for several craftsmen to start the fire, but all of them did not understand the thermal efficiency.

"As for thermal efficiency, simply put, how much energy the steam engine burns, and then how many times it lifts this heavy object, it's like a waterwheel, hey, I can't tell, you just do what I say. ”

Everyone was confused, so they had to do what Li Bai said, and Li Bai used a pen on paper to calculate the work done by the heavy object to overcome gravity, and began to calculate the thermal efficiency with the combustion value of the coal that he vaguely remembered.

Hundreds of people did not know what to do, but they looked at the rising and falling weights, and their eyes showed brilliance, and they knew that today was destined to be an epoch-making day, and the productivity of the entire human race would enter a new era.

Ten minutes passed, Li Bai signaled to stop adding coal, Li Bai took the pen and calculated on the paper for a while, looking at the percentage behind the equal sign, petrified in place, this Nima fake!

Thirty-five percent!

Li Bai crumpled the paper, threw it aside, and calculated it again, and everyone was silent, looking at Li Bai silently, and when Li Bai calculated the value again, it was still thirty-five percent!

"Hahahaha!"

In the silent hall, Li Bai's laughter echoed, and the rest of the people were also smiling, they knew that the steam engine was a success, but they didn't know what it meant to have a thermal efficiency of 35 percent.

In the previous life, the steam engine had just been invented, and the thermal efficiency was less than 10 percent, and it was only 20 percent after Watt improved the steam engine, even if there was some error in this 35 percent, but even if it was 30 percent, it was much stronger than the best steam engine in the previous life, which was destined to promote the productivity of the human race indefinitely.

"Mr. Li, how's it going?"

The Pavilion Master was the first to break the silence.

"It's perfect! This machine is more capable than I expected!"

Li Bai shouted, and the rest of the hundreds of craftsmen also hugged and high-fived excitedly, compared to Li Bai who only provided drawings and theories, then they had paid infinite effort, this steam engine was like their children.

And Li Bai looked around, and was once again shocked by the efficiency of the Gong Pavilion, at this time, a track about three hundred meters long had been laid in the hall, and the locomotive had been placed on it, and now as long as the steam engine system was installed, it could be put into trial operation.

Today, all of you here will witness the dawn of a new era!