The greening of Guanshishan Academy is very good, and it is close to the Wei River, surrounded by mountains and rivers, and has a beautiful environment.

Even though it was a hot summer day, it was only half past nine in later generations. Standing on the roof, you didn't feel how hot it was.

Li Kuan looked at at least a thousand people eating melons below the Gewu Building, and a smile appeared on his face that Xu Jingzong couldn't understand at all.

"Remind me again, please open your eyes and see clearly!"

Seeing Li Kuan pick up an iron ball in each hand and extend it beyond the railing, Xu Jingzong quickly yelled.

In later generations, a seven-story building would not be considered tall at all, it could even be said to be short. After all, it was only over twenty meters.

Around the Gewu Building, a bunch of people stared at Li Kuan's hands with wide eyes, and some were staring at the ground, waiting to see which iron ball would hit the ground first.

"boom!"

It only took a few seconds. As Li loosened his hand, two iron balls, one large and one small, fell to the ground at the same time.

"Look at this iron ball and don't let anyone change your mind. I think there may be something weird about this iron ball."

Changsun Chong said to a guard beside him.

"One is an iron ball weighing half a catty, and the other is an iron ball weighing three catties. Why do they seem to hit the ground at exactly the same time?"

"Strange! Could it be that the landing times were too close and I didn't see clearly who came first and who came last?"

"Could this be what His Highness King Chu said about subverting everyone's understanding?"

For a moment, the ground fell into silence.

However, soon after the first person asked the question, there was a buzzing noise.

"Everyone must have questions about this result, right?"

Li Kuan leaned his upper body on the guardrail, raised his voice slightly, and said loudly: "Then, I will conduct two more sets of experiments. You must see clearly."

"bump!"

"bump!"

There was no change in the result, the two iron balls still hit the ground at the same time.

"I will change another piece of wood and let go of the big iron ball at the same time. Let's see which one hits the ground first."

Li Kuan simply did everything he could to make everyone give up taking chances.

"bump!"

Many people on the ground were already staring at the place where the iron ball was about to land in advance, wanting to accurately confirm whether it really landed at the same time.

result……

"Interesting, this result is interesting."

Li Yan also stood among the crowd, looking at the large and small iron balls scattered on the ground with gleaming eyes.

Although I still can't figure out why they landed at the same time, there must be something I don't understand.

The prince said that he wanted to subvert everyone's perception, and it turned out to be true.

"Can you let me go up and give it a try?"

Du He couldn't help but yelled when he saw that everyone seemed to be accepting this result.

"Your Majesty, this kind of person obviously doesn't trust us, so don't pay attention to him."

When Xu Jingzong heard the voice below, his face darkened.

"It doesn't matter if you don't trust him. Then let him do it himself. Is that Du He? It just so happens that many people in Chang'an City know that I don't deal with him. It would be best if he does the experiment again.

Already."

Li Kuan didn't think it was unacceptable for someone to question the experimental results.

Today I want to increase everyone's interest in Gewu Academy. If there are more controversies and debates, maybe the response will be greater.

Li Kuan's frank attitude made Du He frown.

Today I came here just to see a joke. Judging from the current situation, it seems that I can’t understand the joke.

"Du Langjun, there are large and small iron balls, wooden blocks and stones here. You can take any of them."

Soon, guards took Du He to the roof of the Gewu Building. Although Xu Jingzong was unhappy with Du He, he dutifully explained there.

Du He glanced at Xu Jingzong and Li Kuan, said nothing, bent down, and picked up various things on the floor one by one.

You don't seem to find anything wrong?

Although he was confused, Du He didn't say anything, and finally picked two large and small iron balls and came to the railing.

It was the first time he stood on such a high building. Du He was a little unaccustomed to it, and his legs were shaking involuntarily. But he didn't want to lose face in front of Li Kuan, so he gritted his teeth, held the iron ball with both hands, and stretched out the railing.

.

"bump!"

Although it was unclear whether the two iron balls really hit the ground at the same time, Du He only heard a landing sound.

This is not the result you want.

"Du Langjun, do you want to do another round of experiments?"

Xu Jingzong couldn't help but let out a mocking laugh.

"This is unreasonable. When leaves and fruits fall to the ground at the same time, the fruits fall to the ground first. I have never seen leaves fall to the ground first."

Du He felt that he seemed to have caught the loophole of this experiment, and couldn't help but breathed a sigh of relief.

"You can go down now. I will give you a brief speech to help you understand the meaning and principles behind today's experiment."

Li Kuancai had no interest in arguing with Du He on the rooftop. It was a waste of his time.

Seeing Xi Junmai staring at him with an unkind expression, Du He didn't dare to say anything, and left the roof of the building dejectedly under the watch of the guards.

"Everyone has seen this little experiment I just did, and you must be full of questions, right? Why did the weight of the two things obviously differ, but they actually landed at the same time? Why is this result not in line with everyone's knowledge?

Woolen cloth?"

Without a speaker, Li Kuan had to sacrifice his voice.

Fortunately, I was standing high enough that the people below could not hear anything.

"I wonder if you have ever thought about a question: why does the iron ball fall downwards instead of upwards after I let go of it? Why do some feathers float slowly in the air after I let go of them, or even

Getting higher and higher?"

After hearing what Li Kuan said, the melon-eaters outside the academy basically looked like they were watching the excitement; however, the students inside Guanshishan Academy, especially those from Gewu Academy, fell into deep thought.

The question the prince asked seemed very simple, but I had never thought about why?

Just like why one plus one equals two.

I just think it's a natural thing.

However, it is natural to think that the big iron ball hits the ground before the small iron ball, but this is not the case.

This also means that what is taken for granted may not necessarily be correct.

"In my opinion, the reason is actually very simple. That is because the earth has an attraction for objects, attracting them to fall to the ground. I call this attraction gravity, the power of weight."

When you talk to so many people, your words are too profound and meaningless.

Li Kuan's purpose today is just to spark people's curiosity. As long as this purpose is achieved, future matters will still have to be left to these students.
Chapter completed!