My cultivation disguise has been exposed by Xiao Sizi.

In the secluded and quiet courtyard of the Prince of Qin's residence.

Li Chen's enticing words, "Want to learn? I'll teach you," were like a lightning bolt cleaving through the sky, directly shattering the dark and confused world of King Wei, Li Tai.

Li Tai's massive body trembled violently, and his small, beady eyes, which had been somewhat dim due to the blows he had suffered in the past few days, suddenly burst forth with an unprecedentedly fervent light!

"I want to learn! Qingque wants to learn!"

Li Tai was so excited that his voice was trembling. If it weren't for his excessive weight and difficulty moving around, he would have kowtowed three times to Li Chen on the spot.

"Don't rush, have a seat first."

Li Chen pointed to a stone block next to him, then sat down in a grand chair with an air of authority, picked up a teacup, and moistened his throat.

"The methods I used when I was refining the weapon just now, in addition to my own spiritual power, also contained the most fundamental and supreme Dao in this world."

Li Chen deliberately kept Li Tai in suspense, looking at him with a deep gaze.

"The Great Dao? Could it be immortal magic?!" Li Tai's breathing quickened.

"No. This is a great path that even mortals can master; I call it—physics and chemistry!"

Li Chen stretched out a finger, pointed to the sky, and then pointed to the earth.

"Physics, in essence, is the exploration of the principles governing all things. Why do ripe apples fall to the ground instead of flying into the sky? Why can't water and fire coexist? Why does a piece of pig iron turn into molten iron at a specific temperature?"

Li Chen casually picked up a piece of ice. His palm warmed slightly, and the ice quickly melted into water, then turned into a cloud of white water vapor that dissipated into the air.

"This is called the three states of matter."

Li Chen used an extremely popular and easy-to-understand approach, combining the Tang Dynasty's concept of "investigating things to acquire knowledge," to begin a revolutionary popular science lesson for this greatest talent of the Tang Dynasty.

He started with the most basic principles of levers and pulley systems, then moved on to the boiling point of water and the expansion of air pressure; from the nature of combustion to the amazing chemical reactions that occur when different metals are smelted.

Li Chen originally only intended to make a casual remark and fool the fat man.

but!

As the explanation went deeper, the shock Li Chen felt was even greater than that of Li Tai!

This King of Wei, who compiled the "Kuodi Zhi" in history and had an extremely high talent for astronomy and geography, was actually a super genius in science and engineering!

"Sixteenth Brother!"

After hearing the principle of water vapor expansion, Li Tai slapped his thigh, his fat face filled with a look of ecstatic enlightenment.

"If what you say is true, water turning into vapor will increase in volume hundreds of times. So if I boil water in an extremely sturdy, sealed iron pot, leaving only a small hole for steam to escape, wouldn't that force be enough to propel a giant waterwheel? Perhaps... even enough to make a wheeled iron cart run on its own?!"

Holy crap!

Li Chen nearly dropped the teacup in his hand, staring at Li Tai as if he were a monster.

He had only just introduced the concept of "steam," and this fat guy had already extrapolated and deduced the basic idea of ​​a steam engine!

"What if you mix several highly flammable powders in a specific ratio and ignite them in a sealed iron can..." Li Tai's eyes grew brighter and brighter as he frantically imagined the scenario in his mind, "The instantaneous expansion force would have nowhere to go, and the iron can would explode! Wouldn't that be a hundred times more terrifying than a catapult?!"

Li Chen gasped.

Good heavens! He's even figured out the applications of gunpowder and bombs!

"We've struck gold! This is absolutely priceless!"

Li Chen inwardly burst into wild laughter. With such a near-monstrous intelligence as a tool, how could he possibly worry about the Tang Dynasty's technology tree not going astray?

Li Chen forcibly suppressed the elation in his heart and put on a mysterious, compassionate charlatan's expression.

He stood up, walked up to Li Tai, placed his hands on Li Tai's broad shoulders, and stared intently at him.

"Qingque," Li Chen said earnestly.

"You used to desperately want to become the crown prince and sit on the dragon throne. But think about it carefully, is being the emperor really that good?"

Li Chen began his ultimate brainwashing operation, a "pyramid scheme" style operation.

"Look at Father Emperor, working from dawn till dusk every day, reviewing endless memorials, and having to put up with the rudeness of those old aristocratic scoundrels. A hundred years from now, history books will at most record his 'civil and military achievements,' and in the vast river of history, he will be nothing more than a slightly larger ripple."

Li Chen suddenly waved his hand, pointing to the vast sky, and drew an unprecedentedly huge pie!

"But if you master these fundamental principles of physics and chemistry, you can create them!"

"Imagine it! In the fields of the future Tang Dynasty, there are iron oxen that can plow the land themselves without being pulled by cows! In the sky, there are giant steel birds that can carry people! In the darkness, there are glass lamps that can shine as brightly as day without the need for lamp oil!"

Li Chen's voice was like a demonic whisper, striking directly at Li Tai's pride, which was already desperately craving recognition and a place in history.

"By then, you, Li Tai, will be a pioneer who has ushered in a completely new era! You will be the 'Saint of Mechanics' worshipped by every household in the world!"

"When future generations mention the Tang Dynasty, the first person they will think of will definitely not be Li Shimin, but you, Prince Wei, Li Tai! Your name will shine as brightly as the sun and moon, your fame will last for eternity, and you will be immortal!"

boom!

"A name that will last forever! Even more famous than my father!"

These words were like a precision-guided nuclear weapon, exploding directly in the depths of Li Tai's soul!

Li Tai's entire body of fat was trembling violently. He was panting heavily, and his eyes were no longer glowing green, but were now blazing with a frenzied fire like that of a hungry wolf!

Isn't this a million times better than being some lousy, subservient emperor?!

"Sixteenth brother! Teach me! Please, please teach me all of this!"

Li Tai knelt down in front of Li Chen with a thud, tightly hugging Li Chen's leg, tears and snot streaming down his face, "From today onwards, you are my mentor! I will do whatever you ask!"

"Hey, my brother, get up, get up quickly."

Li Chen's smile almost reached his ears as he quickly helped this perfect, top-notch research tool up.

He slapped the storage bag with his backhand.

"Splash!"

A mountain of jade slips and a thick book of paper illustrations suddenly appeared in the open space of the courtyard.

These are some cross-generational knowledge outlines that Li Chen casually compiled based on his memories from his previous life when he was bored out of his mind in the cold palace.

General Outline of Agricultural Yield Increase and Fertilizer Purification Technology

Illustrated Guide to Winter Clothing and Textile Machinery

Basic Chemical Engineering and Anti-inflammatory Medicine Theory

Water Conservancy Projects and Urban Transportation Infrastructure

A Beginner's Guide to Military Border Defense Firearms

……

Li Tai stared at this treasure trove of knowledge, his eyes nearly popping out of their sockets, swallowing hard.

"These are all theoretical outlines I wrote down in my spare time. Although they cover a wide range of topics, they only contain the general direction and principles."