Datang broom star

Page 3330

Jia Pingan said with a smile: "Sit down."

Li Xian nodded, "Mr. Jia's study of heaven and man, I admire very much."

A child who is only six or seven years old speaks so old?

Looking at the eldest nephew, his eyes are full of love for his younger brother, which is so sincere that it makes people speechless.

Jia Pingan smiled, "Class."

"The lesson is the world."

Jia Pingan taught a new class called the world, which was a blockbuster in mathematics at that time, attracting everyone's admiration, and the director of the Imperial College even knelt down to worship the teacher immediately.

But Jia Pingan went to Liaodong immediately, and the class was suspended for a long time.

Li Hong's eyes glowed, Hao Mi was very excited, and Cao Yingxiong squeezed out the appearance of the bustard last night from his mind

Zhao Erniang's beautiful eyes moved slightly, and she looked at Master Jia intently.

Li Hong's personal lady, Wang Xia, even forgot her duties, and took two steps forward, wanting to hear more clearly.

The servant next to the prince, Zeng Xianglin, coughed dryly, and Wang Xia rolled his eyes at him.

Jia Pingan didn't care about their affairs, and said: "Some people say that the world we live in is only that big, so how big is this world?"

"As early as the former Sui Dynasty, some people said that we are on a spherical land, and many people scoffed at this."

At this moment, Confucianism has not yet formed a situation similar to Confucianism, and speech cannot form a monopoly, so all kinds of whimsical ideas can be freely proposed.

For example, there are various theories about the shape of the earth.

"Some people say that the ground under our feet is flat and stretches across. Some people say that the ground under our feet is like this"

Jia Pingan turned around and drew a square on the blackboard, turned around and said with a smile: "If this is the case, how do we go down to the side? The new point of view is the land under our feet."

He drew a ball on the blackboard, "It's a sphere!"

Zhao Erniang was startled, thinking if it is a sphere, why is it a sphere?

"Of course you want to ask why." Jia Pingan said with a smile: "Others will quote the scriptures, but Xinxue doesn't need it. Xinxue thinks that the ball under our feet was not like this before. It's hard to say what the original sphere looked like. Maybe it was a ball, or It is a piece, but eventually it gradually turns into a sphere as it rotates."

Li Hong said: "Grandmaster Jia talked about his autobiography and attraction, but he just thought of the caramel just out of the pot. If you wear it with a small bamboo stick and turn it, it will become rounder and rounder. This is like turning it round."

Li Jingye would probably be interested in this theory.

"Yes, the prince is wise."

Jia Ping'an has never been stingy in praising his students.

"The entire earth experienced a lot in the early days. At that time, the four seasons were not so clear, and the day was not so long. The whole land was covered with ice and snow."

Everyone listened with gusto.

"After a series of very complicated changes, the temperature rose, the ice and snow gradually melted, and with liquid water, life gradually began to evolve. Don't think that all of this appeared suddenly. Facing the earth, we need to be in awe. Heart"

"Think about those natural disasters, earthquakes, floods, droughts, it's just the earth sneezing, and volcanic eruptions. The depths under our feet are not land, but molten lava."

The students were all stunned.

"Some people say that there are people living in the center of the earth. Without people, the center of the earth is just a big ball of molten molten material. Let's not discuss the deeper part of the earth's core."

Many people in later generations firmly believe that there are people living in the heart of the earth.Scientists also said that the outside of the earth's core is molten iron, and the molten iron wraps iron cores with different structures. Note that it is a solid iron core.Who will believe this?

terrible!

Just thinking about the molten liquid under their feet, everyone couldn't help but look down at their feet.

Jia Pingan smiled, "The ground under our feet is thick enough to cover the lava."

"Then why does the lava erupt?"

Zhao Erniang unconsciously regarded herself as a student, and fixedly looked at Master Jia.

Jia Pingan said: "The ground under our feet is one piece, not a whole piece, that's impossible. The land pieces are actually moving. When they hit together, the ground will vibrate. This is an earthquake." the reason."

"Is that so?"

Zhao Erniang found this statement unassailable.

That look couldn't help but have some admiration.

You can't handle this cult of personality!

Jia Pingan's eyelids twitched, "Gaps appear between the plots, and the lava from the ground will rush up along the gaps and out of the ground, and the soot and ash in the sky will be sprayed out, and then flow out along the exit. , where nothing grows

After the spewing is over, the magma will cool and solidify, and then form a cone, and it will be quiet.But this is only temporarily quiet, some are accumulating lava, waiting for the next eruption, some are silent, and gradually covered with vegetation, it looks like a beautiful cone-shaped hill. "

"I see."

Thinking of that wonderful scene, Li Hong couldn't help being fascinated.

"get out of class off!"

Li Xian got up with everyone, Jia Pingan nodded and left.

Just now, while he was teaching, he was observing Li Xian and Li Hong.

Li Zhi is really a good father.

He loves his kids and that never changed.This is relatively rare among emperors. After the prince became an adult, the father and son basically became rivals, wary of each other, plotting against each other, and finally turned against each other.

And the root of everything is power!

"Quan! You are a knife that kills without blood!"

Jia Pingan hummed a song and walked slowly in a happy mood.

"Mr. Jia!"

Jia Pingan stopped and turned around.

Zhao Erniang staggered as she ran, twisting her body left and right, she looked good, but she was worried about falling.

Just thinking about this, Zhao Erniang tripped and threw her body over.

I go!

Jia Pingan subconsciously wanted to get out of the way.