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Long Tianyu's simple introduction of the wooden ladder, the basket, and the hot air balloon surprised all the generals present. They were all dumbstruck.

With Zhang Zi Fang's experience, Yu Wan'er's profound arts and techniques were all moved by Long Tianyu's few new words, and her curiosity rose, especially Wan'er, who since a young age had been studying astronomical geography, medicine and astrology, living in seclusion in the valley for a long time, not eating or eating in the mortal world, with a pure character and extraordinary status, ordinary people and things did not enter her eyes. But at this moment, her beautiful eyes were brimming with vitality, staring at her husband with deep emotions, hoping that he would be able to say some unique profound knowledge.

Long Tianyu looked at Yuan Ying and said: "General Yuan, take out the airbags and the related tools from the chariot, and prepare to install the flying machine."

Yuan Ying replied as he turned around and instructed his subordinates to bring the mysterious chariots with seals. As they unsealed and unloaded the bags of goods, they all thought that it was some kind of precious treasure. When they opened it, they found some big air bags, fan wheels, steel troughs, etc.

Long Tianyu demonstrated in public, ordering them to support each other by opening an oval cloth bag, which was tightly tied to the basket. Then, he connected the fan wheel, the worm, the drive shaft and the burner, and explained: "This thing is named the hot air balloon, created by using the principle of hot air being compressed and inflated by the hot air inside the burner, producing hot air into the bag. The hot air bag would expand and expand, and the hot air would float above the cold air.

If it was spoken from the mouths of others, they would definitely snort in contempt, thinking that it was a wild fantasy. But when it came out from Long Tianyu's mouth, it was especially impressive, and when everyone saw that their master was extremely confident, they all became hundred of times more confident and agreed in unison.

Zhang Zi Fang and Wan'er analyzed every word that Long Tianyu said, especially the principle of the fan wheel, the drive shaft, and the heat expansion and cold shrinkage, and the words that he said were imprinted in their minds and branded into their hearts.

Yi Yi had toured around the seven nations' old lands to perform, all sorts of noble generals, sages and foreign delegates had seen many, many of them arrogant, conceited, flaunting their own abilities, deliberately mystifying themselves, but such a brilliant and unfathomable person like Long Tianyu was rare. Pointing to a pile of black stones, she asked, "Long Lang, what are those?"

Long Tianyu smiled and picked up a piece of black stone: "This is a coal mine, the forest and trees deep underground have undergone hundreds of thousands of years of accumulation and have been turned into coal resources, it is currently our army's fuel for flight, its burning time is very long, it's a pity that we don't have the technology to extract natural gas and petroleum gas, if not we can solve the major energy problems, and even complete the industrial revolution in advance."

In one breath, he explained many industrial science knowledge. To the people of the Twenty-first Century, these were just child's play, and anyone with a little education would know that life was closely related, but to the generals present, these new words were shocking. These words made all the generals furrow their brows, constantly chewing on its meaning.

Pure Yu Wan'er was also aroused by her husband's words, and she asked in confusion, "What is the Industrial Revolution?"

"Huh?" Long Tianyu was stunned and didn't know how to explain it properly.

"The Industrial Revolution. This … As for industry, it includes smelting iron and steel, forging weapons, manufacturing tools, bronze and steel tools, and so on. It is a part of the industry, and the 'industrial revolution' is a general sense of industrial development, similar to the reform of the Qin Nation during the Spring and Autumn Warring States period. It changed the old production pattern and used semi-automated machinery, such as steam engines, until at that time, not to mention unifying the seven countries, it would even be a matter of several dozens of times larger than the base of the Qin Nation. "

"Huh?"

This time, it was the people's turn to be astonished and speechless. They were all dumbstruck, thinking that their lord's goal was too big, that he was not satisfied even with the unification of the seven empires, and that he still had to expand his territory to fight the Huns, barbarians, and people of the Western Regions.

Her beautiful eyes were full of worship. She mumbled, "Steam engine, semi-automatic machine, just who is my husband? Why is his every word surpassing any previous world's opinions and opinions? Is he really a saint compatible with hundreds of ideas?"

When Long Tianyu saw everyone's shocked expressions, he secretly laughed. Not only were they shocked, they were also scared silly, and treated me like a monster, which was enough for them to even think of me as a monster. They immediately commanded their hundred elite soldiers to install the components of the hot air balloon.

Gradually, the air bags, baskets, and burner on the ground were assembled together and placed under the wooden rack. At the same time, the firefighting equipment was all prepared and placed in the basket. Xiahou Ying, Zhang Yun, Ge Li, Guo Dian, Xiao Chuan and the other generals of all sizes with excellent skills from the cavalry regiment gathered together with the thousand elites selected for the special operation tonight.

Long Tianyu also divided the group of five into a small team, each team used a flying machine to first explain the basic usage to the people, then analysed the locations of the Hangu Pass's grain depots and other important camps. Regarding the enemy's intelligence, they had already sent their own people to Hangu Pass to infiltrate the Chu Army, and after finding out the information, they used eagles to spread out.

The entire valley was filled with elite Dragon Cavalry. This time, the battle was different from what it had been in the past, as they were split into one thousand night raiders, ten thousand siege soldiers, and twenty thousand cavalry soldiers. Guan Ying, Fan Kuai, Xiahou Ying and the other high-ranking officers were all given the task of preparing for the Lightning Flash Battle.

Long Tianyu stood on top of the platform, and looked up into the night sky. The clouds moved secretly, but no wind blew, and he sighed: "Wan'er, tonight's southeast wind will definitely come, right?"

Chunyu Wan'er chuckled and said, "What, you don't have any confidence in your wife anymore?"

I am just asking, but at the moment, everything is ready, and there is only the east wind. Let us properly enjoy the peace before the storm, and after a while, everything will change.

Yi Yi said from the side: "Long Lang seems to be a little nervous too, is he worried that the war will hurt a lot of the citizens in the city?"

Long Tianyu nodded. "Frankly speaking, I really want to break through the Chu Army as soon as possible, and I don't want to break through either.

Pure Yu'er looked at him for a while, and said: "Long Lang wants to defeat Chu Army as soon as possible, rush to Xianyang, eliminate Qin Yi, take the law of the heavens, and establish an unrivalled achievement for the people, but Chu Army is brave and fierce in battle, and also relies on Heaven's danger, for sure it will become a fierce battle. will use fire to attack the enemy, and his methods will be the best amongst all the soldiers, it's just that the so-called fire at the city gate will affect the fish, causing a portion of the citizens inside to be affected, thus Long Lang found it hard to let go."

Long Tianyu sighed: "At this point in time, there is no other way. In the historical tides, a person seems exceptionally small, only using the smallest sacrifice to exchange for the happiness of the people of the world is the way of the king!"

Suddenly, the wind chimes sounded in the valley. The flags were all fluttering towards the northwest. The southeast wind was coming as planned.

"The wind is blowing... "The wind is picking up …" The soldiers cheered in unison.

At this moment, Long Tianyu's gaze turned ruthless and full of domineering aura, he shouted: "Pass down the order, light the fire!"