Time is merciless and passes secretly.

Before I knew it, more than ten days had passed.

The walls were built, and the huge Tiance Academy was surrounded by walls, and the high walls made it impossible for people to see the outside, and people outside could not see inside.

At the same time, the walls were painted white, and slogans were written one after another.

"Struggle, hard work, not afraid of sacrifice, not afraid of difficulties!"

"It is everyone's responsibility to be loyal to the monarch and love the country."

"Fight for the rise of Datang!"

"Datang is my home, and it depends on everyone to care for you!"

“……”

A banner embroidered with a golden dragon fluttered high in the air, facing the wind, making a hunting sound.

The first batch of more than 1,000 sets of new military uniforms has been distributed to the students, and every student wearing military uniforms seems to be in good spirits.

In each classroom, there is a picture of Li Shimin or Li Yuan's half-length military uniform hanging on the opposite side, and there are slogans on the walls on all sides of the country, love the Tang Dynasty, and love the people.

The rest of the training grounds are also under construction.

Li Tai is committed to building a military academy that is close to modernization.

It's another day of pilgrimage.

Li Tai did not go to Tiance Academy in the morning, but walked into the main hall with sleepiness.

Li Shimin came to meet the rising sun, and the day's great court meeting began.

The ministers played a meeting, and it was very lively.

Li Chengqian was a little proud today, he looked around, then stood up, and said, "Father, son-in-law has a plan to play." ”

"Oh? What's the matter with the prince? Li Shimin smiled.

"Father, sons, Li Chunfeng, Yuan Tiangang and others, together made an armillary sphere, this thing is a rare treasure in the Tang Dynasty, specially dedicated to the father." Li Chengqian said.

"Oh?"

Li Shimin's eyes couldn't help showing a hint of joy, and he hurriedly said: "Come up quickly!" ”

Baby!

Li Shimin is very interested in all treasures.

"It is rumored that Li Chunfeng brought the armillary sphere to the temple!"

"It is rumored that Li Chunfeng brought the armillary sphere to the temple!"

"It is rumored that Li Chunfeng brought the armillary sphere to the temple!"

“……”

One roar after another rang out, and after a while, I saw Li Chunfeng walking in from outside with a spring breeze on his face.

is dressed in a Taoist robe, with the touch of a fairy wind and bones.

He was followed by several wrestlers, who were carrying a huge thing at this time.

It's huge, much bigger than a carriage.

It was covered with a red cloth, and I don't know what it was.

"Minister Li Chunfeng pays a visit to Your Majesty." Li Chunfeng approached Li Shimin.

"Li Qingjia, this thing is the armillary sphere you made?" Li Shimin asked, pointing to the behemoth.

"Exactly." Li Chengdao was a little proud, walked to the behemoth's side, grabbed the red cloth with his hand, and then pulled it.

Crash~

The red cloth fell, and a large round object appeared in front of everyone.

Li Tai involuntarily approached, and then breathed a sigh of relief.

What did he find?

What did he find?

Globe!

That's right, he found a globe!

The innermost one is a globe made of copper and inlaid with gold wire!

The gold wire is woven into the earth, and the silver characters mark all places, among which there are the Tang Dynasty, Goguryeo, the Wa Kingdom, and other countries, which are obviously taken from those world maps in the Qinzheng Palace.

Although this globe is not as accurate as later generations, it is about the same.

And outside this huge globe, there are also circles of copper bars, and there are some scales on the copper bars, but Li Tai can't understand what it is.

It always feels very powerful.

"What is this?" Li Shimin asked, pointing to the huge bronze globe.

"This is where we dwell." Li Chunfeng said with a slight smile.

"How do you know that the earth is round?" Li Tai couldn't help asking, do you know that the statement that the earth is round was not put forward by foreigners? Could it be that the ancient Chinese people already knew about it?

"The sky is like a chicken, the celestial body is round like an egg ball, the earth is like a chicken in the yellow, the sky is full of water, the sky is supported by air, and the earth floats on the water." Li Chunfeng smiled slightly and said, "Don't you know, Uncle Qingque?" ”

"Yes, of course I know, I just wanted to test your knowledge, it seems that you are all very knowledgeable, hehe......" Li Tai smiled a little embarrassedly.

In particular, I didn't expect that thousands of years ago, the ancients in China already knew that the earth was round.

The earth is like an egg yolk, wrapped in the atmosphere, and the water holds the earth up...... This is a proper saying that the earth is round!

"It's like a chicken. The celestial bodies are round like projectiles, the earth is like a chicken in the middle yellow, and it lives alone in the sky, the sky is big and the earth is small. There is water in the sky, and the sky envelops the earth, and the shell is yellow. Heaven and earth stand by air, carrying water and floating. Three hundred and sixty-five degrees and one quarter of the week, and one of the middle of the day, then half one hundred and eighty-two degrees and five of eight minutes covered the earth, half around the ground, so the twenty-eight nights were half seen and half hidden. The two ends are called the North and South Poles. The north pole is also in the middle of the heavens, and it is thirty-six degrees above the earth due north. However, the diameter of the North Pole is 72 degrees, which is common and not hidden. In the middle of the Antarctic world, it is also in the south, thirty-six degrees into the earth. The seventy-two degrees of the southern gauge are often missing. The two poles are one hundred and eighty-two degrees apart, and half stronger. The sky turns like the luck of the hub, the circumference is unprovoked, its shape is muddy, so it is called the sky. Li Chengqian recited endlessly, and the whole person was very proud.

"Those who have passed through this have not yet known. Those who do not know or know the universe are also said. The surface of the universe is infinite, and the end of the universe is infinite. ”

Didn't you Li Tai say that you know everything?

I don't even know that the earth is round, so how can I fight with it!

"Gao Ming is really knowledgeable, kind, good, good." Li Shimin happily stroked his beard.

His son is very knowledgeable, and his face is also very bright.

"Your Majesty, this is the ecliptic ring, the horizon ring, the meridian ring, the hexagram, the white ring, the inner equatorial ring, the right ascension ring, ......" Li Chunfeng gushed in.

The crowd gathered around the armillary sphere, squirting in amazement.

Although the armillary sphere has been around for thousands of years, this is the first time they have seen such an armillary sphere.

"I will hold a banquet in the palace at noon tomorrow to entertain all the heroes." Li Shimin said very happily.

"Your Majesty, tomorrow at three o'clock in the afternoon, there will be a solar eclipse, which is a great omen." Li Chunfeng hurriedly said.

"Huh?" Li Shimin's brows couldn't help frowning slightly, and he said: "Li Qing's family is too worried, how can there be such a big omen?" ”

"Your Majesty, the minister has never said anything, this is calculated by the minister according to the armillary sphere, and it is absolutely true." Li Chunfeng said.

"Father, the son thinks that what Li Qintianjian said is true." Li Chengqian said loudly.

"Father, the sons and daughters think that what Li Qintianjian said is simply speechless, the father is the master of the world, a natural saint, under the governance of the father, the Tang Dynasty is becoming more and more prosperous, how can such a murderous thing happen?" Li Ke stood up and said.

"Your Majesty, the ministers don't think that such a murderous thing will happen." Xiao Yu stood up and said.

"Your Majesty, Li Qintianjian is simply nonsense!"

"I think this armillary sphere is just an ornament, and it doesn't have any effect at all."

"Your Majesty is a saint in heaven, and tomorrow the sky will be clear, how can such a great omen happen?"

“……”

The ministers stood up, apparently none of them believed.

"Qingque, what do you think?" Li Shimin frowned and looked at Li Tai.

"Dad, I'll stand and watch." Li Tai said with a smile.

"Huh?" Li Shimin couldn't help frowning.

"I'll lie down and watch, and it's okay." Li Tai's smile is bright!

"Green Sparrow!" Li Shimin's voice was a few points higher.

"Dad, in fact, whether it is a dog eclipse or a solar eclipse on this day, it is just that the moon moves between the sun and the earth, if the three are exactly in a straight line, the moon will block the light of the sun to the earth, and the black shadow behind the moon will fall on the earth, and then the solar eclipse phenomenon will occur." Li Tai explained, saying: "Because the celestial bodies are moving, such things basically happen every few years, and they have nothing to do with the great murderer at all. ”

"However, such things usually happen on New Year's Day, and tomorrow is not the first day of the first lunar month, how can such a thing happen?" Li Tai said with a smile.

"What Qingque said is indeed reasonable, according to historical records, this solar eclipse mostly occurred on the day of Zhengshuo." The eldest grandson Wuji said with a smile as he held his beard.

"What if there is a solar eclipse tomorrow?" Li Chengqian looked at Li Tai unkindly.

"If there is a solar eclipse, he will eat live!" Li Tai pointed at Li Ke and said.

Li Ke was stunned.

The ministers in the hall were also quickly shocked.