Zhang Zheng found that after following himself for a period of time, Li Tai was a little floating. It is manifested in the eyes.

Since learning chemistry, physics, and arithmetic with Zhang Zheng, Li Tai thinks that he has mastered the principles of heaven and earth.

Then, the entire academy from top to bottom, up to the head of the Sixth Academy, down to the hanging children, in Li Tai's eyes, all became fools.

When Li Tai looked at them, his eyes were always unconsciously filled with three points of contempt, three points of arrogance, and four points of carelessness.

Whenever a teacher or child said something unscientific, Li Tai would always snort coldly on the side, and then glance at them with mentally retarded eyes, leaving a sentence: "Oh, ignorance." Then he walked away in the confused and confused look of everyone.

To put it simply, except for Zhang Zheng, Li Tai no longer takes anyone in his eyes. That's why when Li Taifang said that sentence, Zhang Zheng warned him not to do anything crooked.

is afraid that he will suddenly have a brain convulsion, and he will go to have an intellectual storm with His Majesty, and then be hung up by Li Shimin and smoked.

Li Tai lay on the bed boringly, with a numb expression. He finally understood why Zhang Zheng before, no matter who he looked at, even if he was smiling, there would always be a trace of contempt in his eyes.

Now he understands that when the people around him are stupid, the sense of superiority in his heart can't be suppressed at all.

"Life troubles begin with literacy~" Li Taiwei screamed. Just now, he really had a crooked mind, wanting to verify the knowledge he learned from Zhang Zheng, whether he could get a few of those death row prisoners out under the nose of his father.

However, considering the consequences of what Zhang Zheng said, he suddenly coaxed again. If you can't get it, it's a shame, and if you do, you won't be able to escape with a whip.

The so-called gentleman does not stand under the wall, and Li Tai now understands the meaning of this sentence very thoroughly.

"If you have nothing to do, just do the question." Zhang Zheng flipped through the newspaper in his hand, lazily replied to Li Tai and stopped talking.

"I want to do it too, but it's not like there are no tools, the microscope you said can really magnify everything a thousand times? If you don't make me one, you know, I'm at a bottleneck now, and it's really hard for me to do it if you always tell me theoretical knowledge and don't take me to practice. "Li Tai is not interested in what he does now, and he learns very quickly the small experiments that Zhang Zheng took him to do.

Now, he's able to fully grasp those things. Therefore, Zhang Zheng could only spread his hands helplessly and said: "The conditions of Datang are like this, many things can't be made at all, and I am also very helpless, if I can get those things, why should I teach you." What Zhang Zheng said is also the truth, with the industrial conditions of today's Tang Dynasty, Li Tai can master the knowledge of the junior high school period in later generations at most.

Once he entered high school knowledge, Zhang Zheng could only teach him theory. Because of many chemical elements, Zhang Zheng couldn't find them to do experiments for him.

There are many sophisticated instruments that Datang can't make at all. Take the microscope that Zhang Zheng mentioned to Li Tai as an example, don't look at the simple structure of the microscope.

But Zhang Zheng knew that even if he could burn glass now, there would be no way to polish the burned glass to the precision needed to make a microscope.

It also contains all kinds of messy optical knowledge such as wavelength, film thickness, aperture, etc. In Zhang Zheng's previous life, he watched some time travel, traveled to the Tang Dynasty, and made this and that at every turn.

It's almost time to build nuclear weapons and aircraft carriers. But Zhang Zheng himself came to this era and found that it was all nonsense.

Not to mention making those things, according to Datang's technology, you can't even build a microscope. Zhang Zheng knows the technology of later generations, the key is that there is no electricity, no instruments, can Zhang Zheng be built by hand?

Don't talk nonsense, Zhang Zheng doesn't have that ability. The traverser is not omnipotent, so Zhang Zheng can only say that he can't help.

"Alas, there is no dragon slaying skill, but there is no dragon to slaughter, life, it's really lonely." Li Tai cried with a sad face, thinking that he had learned some earth-shattering knowledge, and he was waiting to use these things to push himself to the throne of a generation of Wenzong.

But he suddenly found that these earth-shattering things only exist in theory, and Datang simply does not have the conditions to support itself to turn these things into reality.

Li Tai only felt the sadness of Dandan.

"Okay, don't talk nonsense, I'll teach you a novelty today." Zhang Zheng threw away the newspaper, and he really couldn't stand Li Tai's pretentiousness.

Li Tai turned over with a hopeful glint on his face: "What, what novelty?" Zhang Zheng replied expressionlessly: "Burning glass, oh, that is, the glass in your mouth." ”

"Hiss~Ruri?" Li Tai gasped, and his face suddenly showed greed. You must know that glass is a precious thing in this era, and I have never heard of anyone in Datang who can make such a thing.

The glaze of the Tang Dynasty is imported from Persia and other countries, and the price is enough to make ordinary people daunted.

Li Tai knew that his father had a glass cup that was so pure and transparent that there was no trace of variegation. It was the fifth year of Zhenguan, and the Fanbang of the Western Regions came to the Tang Dynasty to pay tribute to their father.

On weekdays, they are treasured like treasures, and they refuse to let outsiders take a look. Li Tai rubbed his little hands and said excitedly: "Teacher, you can still burn the glass, then we won't be rich." ”

"No, to be precise, I'm going to get rich, you, why do children want so much money." Zhang Zheng's tone can be described as quite bad, but Li Tai still posted it with a hippie smile: "Teacher, how did the glass burn?" Zhang Zheng got up, walked to the Dongyang River with his hands behind his back, and asked as he walked: "Do you remember what I told you, what is the composition of sand?" Li Tai hurriedly trotted to follow, thought for a moment and replied, "Remember, silica." Zhang Zheng's voice echoed in the air: "Silica is glass." ”

"Huh?" Li Tai was stunned, his face full of disbelief.

"Teacher, don't lie to me, you mean that you can make glass with sand?" Zhang Zheng asked rhetorically: "When did I lie to you?" ”

"Ah, the teacher means that those monkeys in the Western Regions Fanbang actually used things burned out of sand to fool my father, and they used some things burned out of sand to make my Tang Dynasty's money?" Knowing the truth that the glass was actually burned out of sand, Li Tai suddenly became surprisingly angry.

Zhang Zheng didn't look back, and the old god replied: "You said it, but I didn't say it, now you know the importance of knowledge......

"I*, these ***" Li Tai couldn't stop cursing at those black-hearted foreign businessmen as he walked.