"Cao Chong called the elephant?"

"What Cao Chong called the elephant? It's Cao Cao's son, Cao Chong, right? ”

"Aren't you talking nonsense? It must be that Cao Chong! ”

Li Chengfeng smiled: "That's right, it's Cao Cao's son, Cao Chong who is called the elephant!" ”

"Back then, Cao Cao gave everyone a difficult problem, saying, who can calculate the weight of an elephant? Cao Cao rewarded him! ”

"At the time, it was a very difficult subject! But Cao Cao has a smart son named Cao Chong! Cao Chong drove the elephant onto a large boat, and then carved a mark on the hull of the boat where the water level spread! ”

Immediately afterwards, Cao Chong drove the elephant down and put a lot of gravel into it, and when the water level reached the moment when the hull was inscribed, Cao Chong asked people to stop and put the stones, so that they only had to weigh the stones, and they could calculate the weight of the elephant! Right? ”

"Actually, where are we, it's just a very simple algorithm, called the law of conservation of weight of matter!"

"The Law of Conservation of Matter? This...... What is this? ”

Those ministers, at first, listened to Li Chengfeng's story about Cao Chong's elephant.

But when they heard the 'law of conservation of matter', they felt like they were listening to the heavens.

Because the Eight Princes can always say something they don't understand at all!

In the face of the doubts of many ministers, Li Chengfeng also smiled: "The law of conservation of weight of matter is different from the law of conservation of material energy!" For example, a pound of cotton and a pound of iron, which one is heavier? ”

"Iron, huh?" A minister who did not read much suddenly said.

Li Chengfeng suddenly slapped his forehead heavily and said, "What kind of ghost book are you reading?" A pound of cotton and a pound of iron, both are a pound, tell me who is heavy? Of course it's just as heavy, stupid! Don't be a minister, go back and farm for me!" ”

"Hahaha......"

As soon as Li Chengfeng said this, the ministers immediately burst into laughter.

Li Shimin also laughed along.

Because the moment when Li Chengfeng tells the story is really interesting, and not only is it very interesting, but you can also learn a lot of truths from it.

Yes, a pound of cotton and a pound of iron are originally the same weight.

But human beings tend to think that iron is heavy and cotton is light.

But they ignore that this is at the same weight! Therefore, it can only be said that two substances are modified in the same weight of the request, less iron, more cotton, not iron weight, cotton light.

Li Shimin touched his beard with a pleasant smile on his face.

Because he was also confused just now, whether it weighed a pound of cotton or a pound of iron.

When he came back to his senses, he realized that it was the same weight, but the concept was different!

"Haha, it's interesting and interesting, Feng'er, you go on, what kind of method will you use to get that boulder in the riverbed?"

Li Shimin thought it was very interesting to hear it, so he wanted Li Chengfeng to continue.

Immediately afterwards, Li Chengfeng said unhurriedly: "The first method is that we dig a super huge pit opposite the boulder!" ”

"This pit needs to be at least two meters deep! And then we're making a super big scale, like a scale thing, taking that huge stone, giving it out? This method is called the law of conservation of matter, I don't know if you understand this statement? ”

"Ding, surprise from Li Shimin, naughty value +188!"

"Ding, the shock from Wei Zheng, naughty value +176!"

Many ministers were shocked by Li Chengfeng's sudden statement.

Even Li Shimin himself was extremely surprised.

yes, why didn't he think of this method?

As long as you need a large enough scale, you can weigh this huge stone out!

How could I not think of such a simple method?

"Okay, well, I finally know, why did the Eighth Prince prepare iron cables, prepare stones, and prepare big tree trunks?"

Li Shimin suddenly said ambitiously: "The Eighth Emperor is to use a big scale to weigh out the boulder under the riverbed!" So, what we're going to do now is dig a pit here, dig a huge one! Isn't it? ”

Li Shimin looked at Li Chengfeng with a smile, and also wanted to show off in front of the ministers.

However, Li Chengfeng frowned, shook his head and said, "No, father, this is just the first plan I said, but what I want to use is the second plan!" ”

"Huh? It turns out that you don't plan to scale the boulder out? ”

Li Shimin immediately felt that he was very embarrassed.

Li Chengfeng shook his head and continued: "Yes, because the second plan is simpler than the first plan, at least the second plan does not need to dig a pit, nor does it need to prepare a basket that can hold 100,000 catties of stones to weigh the stones!" ”

"Then, what is the second plan you prepared?"

At this time, Li Shimin and the ministers all looked at Li Chengfeng very curiously.

Transported a 100,000-pound boulder ashore. It took more than a month for hundreds of civil and military ministers above their court to come up with a solution.

But as soon as Li Chengfeng came, he came up with several ways!

Is this the gap between people and people? Is this the gap between genius and mediocrity?

Li Shimin used to think that there was no difference between people except for birth status, but since he met Li Chengfeng, he found that there is really a big difference between people.

Some people are naturally smart, while others are naturally stupid.

Some people are born with good hearts, but some people are born without being taught, and they are extremely insidious and cunning!

Perhaps, this is the gap between people.

"Nafeng'er, tell me your second thought, okay?"

"Okay, you'll find out what my second thought is in a minute!" Li Chengfeng said confidently.

Because the first idea is much more complicated than the second.

He has to dig a big pit again, and he has to prepare a big Louzi who can hold 100,000 catties of stones, which will waste a lot of Li Chengfeng's time.

Therefore, Li Chengfeng might as well choose the second method directly, make a fulcrum, and then hang up the 100,000-pound big stone!

……

Soon, Li Chengfeng instructed his subordinates to pile up a fulcrum more than two meters high with dozens of huge stones at a location he had chosen.

From a distance, it looks like a small hill.

Li Chengfeng also deliberately dug a groove above the fulcrum, so that the fulcrum that came out of this way was not easy to slip.

Then the next thing is to wait for Cheng Yanjin and them to transport the trunk back!

"The Eighth Prince, the Eighth Prince, the old minister is back!"

Say Cao Cao, Cao Cao will arrive.

Li Chengfeng was still thinking about it in his mouth just now, saying why hasn't Cheng Yanjin come back yet?