Datang: Stop pretending, you are a peerless expert

"I knew that you would go to the Three Treasure Hall for nothing."

"Tell me, what's the matter."

Su Yu said.

"That's how it is. Brother Xian, a group of teachers have passed here."

"Then Li Er built a special Lanxiang school."

"I thought the two sides could live in peace, but I didn't expect them to quarrel again."

"The question of this quarrel is whether two objects of different weights landed at the same time."

"Lanxiang School said that the goose feather and the boulder fell to the ground at the same time, which is too counterintuitive."

Li Shimin said.

Su Yu smiled and said, "Old Li, in a vacuum, the falling speed of any object is the same."

Li Shimin and Du Ruhui listened in confusion.

Confused about the fruit on the tree, under the tree, you and me.

Both of them were dumbfounded.

What is a vacuum?

Any speed is the same?
"My dear brother, we are not joking."

Li Shimin said helplessly.

He thought Su Yu was joking to tease him.

"I'm not kidding."

Su Yu was very helpless, explaining this to them was too much effort.

Du Ruhui asked: "Young Master Su, according to what you said, wouldn't it mean that the feather and Mount Tai fell from the sky at the same time, and their speed is the same?"

"Yeah, that's what happened."

Su Yu said seriously.

puff.
Li Shimin and Du Ruhui laughed loudly.

It was the funniest joke they had ever heard in their lives.

Feathers are the same as Mount Tai.

LOL.

Su Yu said: "Old Li, the difference in landing speed between a feather and a boulder is because there is air blocking it. If there is no air, it will be the same."

"This thing is too laborious to explain, but the verification is very simple."

"My dear brother, tell me how to verify it."

Li Shimin was still laughing.

"Master Su said, let's explain to Li Er."

Du Ruhui laughed out loud.

"If you follow what you said, the heavier the weight, the faster the landing speed."

"Then it's very simple. Take two iron balls of the same weight and let them go from the same height."

"Shouldn't the heavier one hit the ground earlier?"

Su Yu asked.

In fact, this problem has already been tested.
No, it came later.

Leaning Tower of Pisa iron ball experiment.

Having said that, Li Shimin felt that it should be so.

"Yes, since it is heavier, it should land first."

Li Shimin said.

This is obvious.

Du Ruhui nodded and said: "Although it is impossible to double the speed, it is true."

Two people are very sure.

"You two are illiterate, two iron balls hit the ground at the same time."

Su Yu said disdainfully.

Only the two of them need to explain this simple truth.

"My dear brother, my brother has never said anything against what you said."

"But this time, brother doesn't follow you."

"How could it be possible to land at the same time, teasing me."

Li Shimin finally refused to accept it once with confidence.

Du Ruhui also said: "Young Master Su was just joking, how could he land at the same time?"

Neither of them believed it.

Su Yu said: "Then seeing is believing. Isn't there a Dazhuangyan Temple in Chang'an City? You just need to drop two iron balls from the top of the tower at the same time to see if they land at the same time."

The Dazhuangyan Temple mentioned by Su Yu is a famous temple in Chang'an City. It was originally named Chanding Temple. It was established by Emperor Wen of the Sui Dynasty to pray for his beloved wife, Queen Dugu Jialuo.

The temple is large in scale, and there is a wooden tower about [-] meters high in the temple.

In the first year of Tang Wude, it was renamed "Dazongchi Temple" and "Dazhuangyan Temple".

The [-]-meter-high wooden tower is just right for experiments.

"No, Mr. Su, the wooden tower is small at the top and big at the bottom, how do you throw the iron ball down?"

Du Ruhui is at the tip of his horn.

"Simple, just use a piece of wood to stick out."

Su Yu said.

It's stupid to say such a simple truth.

Li Shimin said with a smile: "Okay, brother, I will follow you."

"Go back and tell Li Er, do this experiment and see if it is as you said."

Li Shimin had predicted that Su Yu would fail this time.

"It's good to leave."

Su Yu was busy making fireworks and had no time to talk to them.

Li Shimin stood up and asked, "Where are my two daughters?"

After entering Zhuangzi, I didn't see Changle and Xiaosizi.

"They went to play with Xue Ji, and they won't be back for a while."

Su Yu said.

The two of them fell in love with horse riding recently, and Xue Ji took them out crazy.

"Okay, I'll talk about it next time."

"Brother Xian, I will tell Li Er when I get back to see if this is the case."

Li Shimin laughed.

The two rode on horses, walked to the door, and saw a huge amount of bamboo being transported to the village.

Can this kid really use these bamboos to make paper?

Li Shimin muttered in his heart.

back to the palace,

Li Shimin ordered Du Ruhui to arrange this experiment, which was at Dazhuangyan Temple.

When the news came out, everyone knew that Lanxiang School and the Imperial College had met.

The wooden boards on the tower are set up, and the iron balls are also selected.

One weighs one catty and the other weighs two catties.

the next day,
Dazhuangyan Temple is crowded with people.

The people of Chang'an City, the students of Guozijian, and the Guozijian Jijiu Liang Cheng and a group of teachers of Guozijian.

The dignitaries in the city, as well as monks and monks.

Wu Ya pressed 10,000+ people under the tower.

Li Shimin changed into casual clothes and mixed in the crowd.

The people on the tower are ready, this time the referee is Wei Zheng.

Because Wei Zheng is impartial and selfless, the results of the experiment are determined by him as the most suitable one.

Guozijian Jijiu arrived at the scene and shouted: "Everyone, I am Guozijian Jijiu."

"Today, we are here to expose the lies of these monsters."

"They actually said that if the feather and Taishan fall, they will land at the same time."

Liang Cheng shouted at the scene.

The people who eat melons are very happy, haha ​​making fun of these new teachers.

The new teacher looked at Liang Cheng with a look of pity on him.

As a Guozijian Jijiu, he doesn't even understand the most basic knowledge of physics.

No nine-year compulsory education is incomplete.

Su Yu also arrived at the scene, and next to him was a 16-year-old monk with a decent face.

He is also watching the fun.

"Little monk, where are you from?"

Su Yu actually guessed about it.

"Amitabha, poor monk Jinchengfang Huichang Temple debate machine."

Monk Bianji replied.

It turned out to be Monk Bianji, Su Yu secretly smiled and said: Fang Yiai's cuckold has arrived.

"Does Monk Bianji have time to come here to watch the fun?"

Su Yu laughed.

"I heard that this is a dispute between the two schools of teachers. The poor monk wants to know what happened."

Monk Bianji replied.

He looks gentle and gentle, not like a lewd monk.

Su Yu smiled and ignored him.

Referee Wei Zheng climbed onto the wooden tower, and a board stretched out.

A brave young man, holding an iron ball in his hand, walked to the end of the board.

"Everyone, the experiment begins."

Jijiu Liang Cheng said happily.

It's finally time to expose the masks of these monsters.

Leave them speechless.

Wei Zheng watched the young man walk to the edge, his heart was in his throat, he was afraid that this person would fall.

"The experiment begins."

The two iron balls in the young man's hand fell at the same time.