Li Xuan ignored these little bastards and continued: "Although you stand on the earth and look towards the sky, you see the sun as big as the moon, it is because the sun is very far away from the earth.

And the moon is very close to the earth, relative to the sun!”

"The more we follow the coastline, north and east, it is because the earth we are on is rotating around the sun.

At the same time, the earth is also rotating itself, which means that the sun rises and sets in the east and west.

And we are moving eastward again, so the sun will naturally rise earlier and set faster and faster..."

"The earth is divided into the northern and southern hemispheres. My Tang Dynasty is in the middle of the northern hemisphere. The northward direction, the colder it becomes. It can be covered with ice for a year, or it can be daytime all day without night..."

Following Li Xuan's words, Cheng Chusi, Yuchi Baolin and others did not notice that they had slowly sat on the ground, with wide eyes and stared at Li Xuan with a stupid face.

What Li Xuan said is completely contrary to the knowledge they read from the books they have read since childhood!

However, according to what Li Xuan said, the more they thought about it, the more they felt it was very reasonable.

It seems that what Li Xuan said is correct.

However, the books they read are all the words of the wise men!

Along the way, Li Baoding, Wang Xuance, Li Chengqian and others seemed to have found a new goal in life. They surrounded Li Xuan all day long and listened to Li Xuan explaining the astronomical knowledge.

At the same time, he also asked while recording it in some books.

Fortunately, when they came, they knew that the journey was long and it took more than a year.

He also brought two large boxes of booklets and pens.

So, on the road ahead, the few people were no longer boring.

When Li Xuan was bored, he could tell these little bastards some knowledge that he had never told to the Tang people, which was also a kind of relief and a kind of venting.

in this way.

Two months later, they finally left the island of Japan and entered a small island.

"Teacher, why are these islands so small? And they are arranged so densely?"

Sitting at the bow of the boat, Wang Xuance asked curiously.

"How do I know!"

Li Xuan said angrily.

After hearing this, Wang Xuance, Li Baoding and others were not afraid, and they all laughed.

For two months, they were sailing in the sea, and they could only rely on Li Xuan to tell them about astronomy and the stars in the sky to relieve boredom.

At the same time, in order to prevent the crew and soldiers from getting bored and going crazy, a few days later, Li Xuan asked Cheng Chusi, Wang Xuance and others to go to the ships behind him to tell stories to the crew and soldiers.

Talking about pinyin letters, talking about numerical arithmetic, enlightenment, astronomy...

Anyway, along the way, the crew enlightenment class started.

With the learning goal, the soldiers and crew members are full of motivation and no longer feel boring.

"Um?"

Suddenly, a few days ago, Li Baoding, Cheng Chusi and others hurriedly found Li Xuan again, with a look of panic.

"What happened?"

Seeing this, Li Xuan was shocked.

"Master, there is a big island ahead of you that is spitting fire!"

Cheng Chusi shouted.

"Breathing fire?"

Li Xuan was stunned, quickly got up, picked up Qianliyan, and looked into the distance.

Sure enough, not far away, a small island was spraying with fiery red magma, falling into the nearby sea, and a large amount of white smoke emerged.

After a moment, the smog was shrouded in smoke.

"It's okay, send the order down. This is just a volcano eruption, so there's no need to make a fuss!"

Li Xuan said.

"yes!"

Xue Rengui quickly passed the order. As the order was passed, the soldiers and crew members on the large ships behind gradually returned to peace.

Along the way, Li Xuan completely became the backbone of these soldiers and crew members. As long as Li Xuan said that nothing big was going on, these people could calm down quickly.

However, the soldiers and crew members were still staring at the island that was spitting out of the fire in the distance, with a look of surprise.

Not only have they never seen the islands that can spit fire, they have never even heard of them.

"Teacher, what is a volcanic eruption? Could it be that these islands are all volcanoes? But there are no fires on these islands!"

Cheng Chusi asked curiously.

"It's because the inside of these islands is covered with a bun, and you can imagine it as buns. These islands are bun skins, and inside are a pile of fire and water filling. When there is too much fire and water inside, or if there is a force squeezing it inside, the fire and water will be sprayed out..."

Li Xuan explained patiently.

"Teacher, are there fire and water in these islands?"

Hearing this, Li Chengqian, Cheng Chusi and others couldn't help but widen their eyes and looked surprised.

"Without fire water, how did the fire water in these islands spew out?"

Li Xuan said helplessly.

"hey-hey……"

Cheng Chusi, who was asking questions, also knew that he had asked a very stupid question and was full of smirks.

Then, everyone raised their eyes and looked at each other in a daze.

On the side, Xue Rengui silently wrote down what Li Xuan said, then walked quickly, spreading Li Xuan's explanation to the entire fleet again.

More than two thousand soldiers and crew members suddenly realized and were no longer afraid.

His Highness King Jin is indeed amazing. He knows that the volcano’s belly contains fire water!

However, in the next few days, Cheng Chusi, Li Chengqian and others did not stop panic.

Soon, even if they were sitting on the boat, they could feel the sensation of the sea.

The wide waves hit the boat, scaring all the crew and soldiers, all their faces pale.

They could even see that the islands on the left side of their fleet were shaking.

The rocks on the island rolled down into the sea from time to time, and several islands were also erupting red fire water...

A sign of great danger!

"Master, the sea god here is angry. Are they not welcome me?"

Cheng Chusi, the bastard, began to get muddy again, and came to Li Xuan with a look of horror.

And all the crew members and soldiers on the entire fleet were also full of horror.

Even many crew members knelt on the ground and kowtowed to the sea and begged for mercy!

Seeing this, Li Xuan let out a long sigh and said:

"Where is the sea god? This is an earthquake. Could it be that you have not seen historical records?"

Seeing Li Xuan's expression, Cheng Chusi, Li Chongyi and others were also relieved.

However, he soon became confused again.

“What is an earthquake?”

"That is, the earth dragon turns over!"

Li Xuan explained.

"It turned out to be the earth dragon turning over?"

Now, Cheng Chusi, Li Chongyi and others were all full of surprise, and quickly raised their eyes again and looked at the small islands in the distance.

They also saw records in the book that during the pre-Sui Dynasty, there seemed to be six times when the earth dragons turned over, the earth's veins trembled, the earth's cracks collapsed, and many cattle, sheep, people, and their houses fell into the cracks and were swallowed by the earth's dragons!

Unexpectedly, they could still watch the Earth Dragon turn over so closely in their lifetime.

And behind the few people, Xue Rengui silently whispered these words and came to the stern of the boat.

He raised the huge iron horn at the stern of the ship and began to explain to the fleet behind him.

This time, the impact of the earthquake was too great. Xue Rengui explained for a long time before the crew and soldiers slowly calmed down.

However, each of them was still nervous and looked around carefully.

...
Chapter completed!