Datang: Acting as a celestial mystery at the beginning

Li Dejian and the three of them also gave Changsun Chong a disdainful look, so they didn't care about him anymore.

Chang Sun Chong felt as if he was about to be abandoned. If he had known this, he wouldn't have sneaked around just now and pretended to be smart.

The other ministers looked at His Royal Highness and suddenly said that there was a way, but they couldn't figure out for a while what they were trying to do.

Then, many ministers also saw them bring back buckets, utensils, gold, and a scale.

Li Shimin didn't stop them, they had nothing to do anyway, other people, such as Kong Yingda and the others, hesitated for a while and didn't say anything, waiting to see how Li Chengqian performed.

It's just that Neptune was a little nervous when he saw this, and thought to himself how could they understand these things, and asked tentatively, "Your Highness, what are you doing?"

"Help you identify the crown."

"How should it be identified?"

"Just use this water!"

Li Chengqian said: "Everything actually has a density. The density of gold is different from other things such as copper, so the volume will also be different. If the crown is pure gold, the amount of water overflowing in the water will be equal to the same weight of pure gold. Gold is the same, if it is different, it means there is a fake in it."

He still clearly remembers that when Mr. Zhang taught the lesson of buoyancy, he said that a Westerner named Ahami used this method to appraise the crown of a king.

Li Chengqian looked at Neptune suspiciously, thinking, aren't you from the west?How do not know about it.

Neptune felt a little guilty, but he was so surprised that he didn't know how to describe it.

The Romans inherited the knowledge of the Greeks and understood Archimedes' principle of buoyancy.

How did the prince of the Tang Dynasty know that he was thousands of miles away from their country?

Could it be that Datang's level has far surpassed them.

Soon, Cheng Chumo cut off gold of the same quality as the crown, and put it into the water at the same time as the crown.

I saw that the water overflowing from the crown was more than half of their pure gold.

"Envoy Neptune, your crown is not pure gold!"

Li Chengqian said decisively.

After he finished everything, except for Neptune who turned pale with shock, everyone else was puzzled, unable to understand why the crown was not made of pure gold.

They didn't understand what density and volume Li Chengqian said just now.

Li Shimin was also puzzled, and could only glance at Changsun Wuji.

Changsun Wuji immediately understood and asked, "Your Highness, what is the basis for this?"

"It's density and buoyancy!"

Li Chengqian was still young, so he didn't know how to convert it for a while, and didn't know how to repeat it in words he could understand.

Chang Sun Chong felt that this was an opportunity for him to express himself, and said quickly: "That's right, metals such as gold, silver, copper, and iron have the same weight but different sizes. If the sizes are the same, the weights are different."

The principle of buoyancy was also learned by Chang Sun Chong from Li Yi'an, and he quickly said: "If the gold of the crown is not pure, it must be different in size compared with pure gold of the same weight. The shape of the crown is not neat, and the size cannot be measured. The amount of gold and the crown are put into the water together, and the crown overflows with more water, which proves the difference in size, and the crown is larger than pure gold."

After hearing Chang Sun Chong's words, everyone finally understood and suddenly realized.

Changsun Wuji nodded slightly, thinking that this Nizi would still seize the opportunity.

Then, I won't beat him when I go back tonight.

Li Chengqian nodded and said, "That's right, that's it."

"I also heard that in your west, there is a name..."

He just can't remember the name.

"Archimedes!"

Chang Sun Chong said again: "Archimedes explained the principle of buoyancy. You Westerners, Neptune's envoy, how could you say you don't know? You brought this impure crown on purpose, right?"

How... how do they even know about Archimedes?

This Western envoy was immediately stunned!

Neptune has never heard of it. It is unbelievable that an Easterner has been to the West!

Are these orientals all gods?

Especially His Royal Highness the Crown Prince!

"I……"

Neptune had no idea how to explain it next.

This time, he asked for trouble and dared to challenge Datang's authority.

"okay!"

Li Shimin finally saw through the other party's thoughts, and was a little upset, but in order to show his image as a big country, he didn't argue with Neptune, and waved: "Nipton's envoy, go down!"

He didn't even want a crown, let alone blue and white porcelain.

Hearing Li Shimin's voice was a bit unfriendly, Neptune opened his mouth, but he still couldn't say anything in the end.

"Kong Gong, amazing!"

Among those ministers, many people's eyes fell on Kong Yingda in unison.

He is the prince and grand teacher, Zhan Shi of the East Palace Zhan Shifu, and everyone recognized him as Li Chengqian's first and best teacher.

Where does the prince get his knowledge from?

Of course it is from Kong Yingda!

As for Li Yi'an, they simply ignored him.

"I didn't expect Kong Gong to learn everything, and to understand Western knowledge thousands of miles away!"

"His Royal Highness is taught by Kong Gong, the blessing of the Tang Dynasty!"

"The pillar of Kong Duchy is beyond our reach!"

Kong Yingda was a little dazed when he heard what they said, and he had never taught His Highness this before, and he didn't even know how to do it.

But once a person is flattered, it is easy to drift away, especially someone like Kong Yingda who values ​​his own reputation the most, also ignores Li Yi'an, and bows his hands triumphantly as an admission.

"As the prince and grand teacher, I will teach His Highness what you should do!"

Kong Yingda narrowed her eyes and said happily.

Li Chengqian made a big show for the second time and was about to sit back when he happened to pass by Kong Yingda. Hearing these words, he couldn't bear it, and dared to pretend to be credited to Mr. Wang.

He admired his husband more and more. For Kong Yingda, for some reason, he just disliked and resisted him. He immediately asked, "Master Kong, please explain what buoyancy is?"

"Of course I..."

Kong Yingda was about to respond, but found that the person who asked him was Li Chengqian, and he couldn't say anything after that, he didn't know what buoyancy was.

Li Chengqian decided to seek justice for his husband today, instead of just sitting down, he walked up to Li Yi'an decisively under the eyes of everyone, and said: "The knowledge about buoyancy is all taught by my husband, and how hot air balloons can fly people into the sky." , was also taught by my husband, and all of what I have learned has nothing to do with Master Kong.”

Li Yi'an originally wanted to keep a low profile and leave after a meal here, but Li Chengqian dragged himself into trouble.

Hearing Li Chengqian's words, all those who flattered Kong Yingda just now blushed.

This face slap came too fast!

"why is it you again!"

Seeing Kong Yingda, his old face blushed.

He felt that his reputation would be discredited today.

"No, no, it's not me!"

Li Yi'an waved his hand and said, "Your Highness is really not my teacher, but Kong Gong. I'm just a county magistrate, and I don't understand anything. How can I be qualified to teach His Highness? This is all due to Kong Gong, and it has nothing to do with me."

"Li Yi'an, you dare to insult me!"

Kong Yingda felt that these words were not much different from humiliating herself.

For a man with such an excellent reputation, being humiliated in front of many people, with foreign envoys around, is more uncomfortable than killing him.

Finally, I couldn't hold back the anger and felt my eyes go dark, and I fell down straight.

"Kong Gong!"