Father can be an enemy to the country

When Lao Liu's carriage returned to Jilong Mountain, it was already dark.

"Your Highness, there is a monk who has been waiting for a long time." After King Chu got out of the car, the guard guarding the door hurriedly reported.

"Yes, I saw it." Lao Liu nodded. As soon as he got out of the car, he saw a shiny bald head shining in the moonlight.

"Amitabha, the poor monk Daoyan, pays homage to His Highness the King of Chu," the fat monk put his hands together and bowed to Prince Pang Pang, and said with tears in his eyes: "I finally meet His Highness. Fortunately, the poor monk did not give up."

"Haha, Master Daoyan, I have long admired your name." Lao Liu looked at Monk Daoyan and asked with a smile: "Master, have you been waiting for a long time?"

"Yes, I have been waiting for two hours today, but before today, the poor monk had been waiting for His Highness for six years." Dao Yan said excitedly: "Today I finally got what I wanted."

"Oh, really?" Lao Liu was a little surprised. How old was he six years ago? Dao Yan is now wise enough to recognize pearls?

However, he didn't ask in detail, and he smiled and invited Dao Yan into the school: "Master probably hasn't eaten yet. If you don't mind, you can have dinner with me."

"Haha, I was about to ask the prince for a meal." Of course Dao Yan would not be polite to him. He followed Lao Liu with a smile and said, "To be honest, I just had breakfast today."

"Didn't you eat twenty boys' urine and boiled eggs at my master's place?" Lao Liu exposed him rudely.

"Uh..." Dao Yan said without embarrassment: "A mere twenty eggs can only be regarded as snacks."

"Haha, Master, you have a good appetite." Zhu Zhen laughed and said, "I like it. He is as good at cooking as me."

Then he gave an order: "Let the canteen work overtime and only serve the hard dishes that we are good at."

~~

In the Arctic Pavilion, a huge mahogany table in the hall was filled with large plates and bowls of big fish and meat.

Daoyan held a soy sauce elbow in his left hand and twisted it fiercely. With his right hand, he moved it as fast as flying. He stuffed the diced chicken and meat slices in the dish into his mouth. He ate it like an evil ghost reincarnated and ate it, which stunned the palace maids passing the dishes around.

They felt that they owed their Highness an apology. Normally, they felt that His Highness was gobbling up food and eating in an indecent manner, but compared with this monk who seemed to be mouthing three times faster, His Highness's eating appearance was simply delicate.

"Eat slowly, there is plenty." Even Lao Liu was surprised. He didn't expect him to be like Yao Guangxiao.

"Woo, you have eaten some meat..." Monk Dao Yan nodded, but his eating speed did not slow down, and he could still say vaguely:

"The poor monk is under strict control by the abbot. He doesn't allow me to eat meat, otherwise he will expel the poor monk from Tianjie Temple..."

"Hahaha, if Master loves eating meat so much, why do you still want to be a monk? Just return to secular life." Zhu Zhen said with a smile.

"As expected of master and disciple, His Highness and Uncle Chengyi asked the same questions." Dao Yan said with a smile: "The poor monk found a monk with great difficulty. He can eat and drink for free in the temple, and he can also fight in the big world when he goes out. The guise of the temple is ostentatious...oh no, it is to be respected."

"That's right, it's a golden job no matter what." Lao Liu nodded and said no more.

After eating dinner for about eight people, Daoyan burped and his lips were glossy, feeling full. "Comfortable, I haven't eaten this well in a long time."

"Master can come to give you a tooth ceremony at any time." Lao Liu said with a smile: "I will get you a meal card later. When I am not here, you can go to the cafeteria to eat."

"Thank you, Your Highness." Dao Yan thanked him happily.

~~

The two of them moved to the study to have tea. Dao Yan was very interested in the furnishings of King Chu's study.

Not to mention the huge variety of books, just the long-tube telescope, the big rotating ball, and the huge sailboat model are all eye-catching.

"It's okay, just look and move as you like." Seeing that he wanted to spin the big ball, Lao Liu agreed with a smile. The king is so majestic.

Dao Yan pushed with his thick fingers, and the big ball began to rotate around a through axis. He looked at the patterns and words on it. There were familiar country names such as Ming Dynasty, Japan, Siam, and Persia. There were also some names that he had never heard of, such as 'Folangji', 'Yinjili', and 'Honglanxi'. place name.

Zhu Zhen stood behind him, ready to give the monk a little geographical shock.

But I heard Dao Yan ask with a surprised look on his face: "Is this the round earth instrument?"

"I'll rub it..." Lao Liu almost did the splits. If it had been a year ago, he would most likely have asked Dao Yan, 'Master, did you also come through time? ’

But now that he had done in-depth research on the history of ancient science, there was no need to make a fuss. He asked calmly: "Master, do you know that the earth is a sphere?"

"Yeah, yeah." Dao Yan nodded happily, pointed to a set of books on the bookshelf and said, "Mr. Yuandu's "The New Book of Gexiang" was taught by my master. Shilin attaches great importance to it. I didn’t expect His Highness to be involved in it.”

"Hahaha, the master is so knowledgeable..." Lao Liu took the set of "The New Book of Gexiang" from the bookshelf and said: "Such a treasure of China was almost buried in silence. Fortunately, my master is well-read and learned a lot from the book." The king recommended it.”

Before last year, Lao Liu always thought that the ancients believed that the sky was round and the earth was round. But last year, when he began to research and sort out existing academic results in order to compile teaching materials, he suddenly discovered that Chinese astronomers had already known that the earth was a ball.

It is not Zhang Heng's simple description of "the ground is like the yolk of an egg", but is derived through scientific observation and calculation and rigorous argumentation.

Monk Yixing of the Tang Dynasty and Guo Shoujing of the Yuan Dynasty discovered that the height of the Polar Star was different at different latitudes by measuring the height of the North Star at the northern and southern ends of China's territory.

Yelu Chucai of the Yuan Dynasty also organized people to record the lunar eclipses in Kaifeng City and Xunsi Qiancheng in Central Asia. It was found that the lunar eclipse time in Kaifeng City is one and a half hours earlier than in Central Asia. The existence of longitude was discovered through the different times of lunar eclipses in different regions of the east and west.

Therefore, after obtaining scientific data from large-scale measurements, Zhao Youqin of the Yuan Dynasty, also known as Mr. Yuandu in Daoyan's mouth, concluded in his "New Book of Gexiang":

"Measuring the height of the North Pole above the earth, as well as the morning and evening of lunar eclipses in the east and west, are all proof that the earth is round and its dimensions correspond to those of heaven."

Through the differences in longitude and latitude, it was demonstrated that the earth is round.

And this is not just a family opinion, but a common sense recognized in the astronomical community at that time.

Based on this, astronomers of the Yuan Dynasty also created the first globe in human history.

Although Zhu Zhen had never seen the actual object, he found clear records in "History of the Yuan Dynasty Volume 48 Astronomy One" compiled by Song Lian and others:

‘It is made of wood as a round ball, seven parts are water, its color is green, and three parts are land, its color is white. Paint rivers, lakes and seas, with the threads running through them. Draw small square wells to measure the vastness of the circle and the distance of the road. ’

Decades ago, astronomers from the Yuan Dynasty made a globe, and it was a globe made with longitude and latitude...