Although in the BC Yuan Dynasty, people already had a certain understanding of the concept of the world, in fact this concept was still very vague.
The globe that Chen Kan carved based on his own memory directly embodied the vague concept of the world.
Zhu Di held a globe in his hand, his expression uncertain.
Chen Kan cupped his hands toward Zhu Di and said, "I got this thing from a businessman from Yiban State whom I met by chance a few days ago."
Chen Kan lied casually. Anyway, it was impossible for Zhu Di to go to the businessman for verification. Even if he really sent someone to find it, he might not be able to find it.
"Fanbang merchant?"
Zhu Di frowned.
Chen Kan responded in a neither humble nor arrogant manner: "Yes, according to what the merchants from that country said, the earth we live in is actually a sphere, and we humans live on the continent of this sphere.
Foreign merchants have named the sphere we live in as the earth, and this thing is a miniature version of the entire earth. The foreign people call this thing a globe. "
"globe?"
Zhu Di put the globe back on the shelf of the Golden Winged Dapeng and said calmly: "It's just nonsense. If people really live on a ball, doesn't it mean that I may fall into the sky at any time? go?"
At this point, Zhu Di suddenly stopped talking and frowned: "Speaking of God, I heard that you made a new thing called a hot air balloon. You used that thing to pick up my Chang Ning, right? ?”
Chen Kan raised a smile at the corner of his mouth and said with cupped hands: "Yes, but the hot air balloon was not invented by my son-in-law. He just improved it on the basis of the Kongming Lantern."
Zhu Di lost his voice and said: "Kongming lantern?"
But soon, Zhu Di came to his senses, and his eyes showed surprise and uncertainty again.
Everyone knows that Kongming lanterns can fly into the sky.
When he was young, he took Empress Xu to release the Kongming Lantern more than once.
Since the Kongming Lantern can fly into the sky, it seems not impossible to make the Kongming Lantern a hundred times and a thousand times bigger and be able to carry people flying into the sky.
Seeing the change in Zhu Di's expression, Chen Kan knew that his goal had been achieved.
Chen Kan gave Zhu Di a globe, without even thinking of relying on his words to convince Zhu Di that he lived on the earth.
He simply planted a seed of suspicion in Zhu Di's heart.
Most people are suspicious, which is nothing more than burying their doubts deep in their hearts.
But the emperor was suspicious, especially since this emperor was a powerful emperor who could easily mobilize all the resources of the country.
Then, in order to answer the doubts in his heart, the emperor will definitely seek confirmation.
And Zhu Di is still so young now, he has a lot of time to wait for others to prove that the earth is round.
With Zhu Di's temperament, once he knew that there were so many wealthy places overseas, he would never set his sights on the barren grasslands again.
Chen Kan's promotion of the great voyage can be completed naturally.
So Chen Kan did not take the initiative to explain the globe to Zhu Di, but told Zhu Di about the principle of the Kongming Lantern.
…
…
"Hot air rises and cold air falls. The mass of hot air is smaller than that of cold air, so the sky lanterns can float into the sky. How did you know this?"
Zhu Di looked at Chen Kan with a very strange expression. He never believed that Fang Xiaoru had taught Chen Kan this knowledge.
Chen Kandao: "Back to Your Majesty, the book "Kao Gong Ji", a craft official document of the Qi State during the Spring and Autumn Period and the Warring States Period, and the "Huainan Zi", a great work of the Han Dynasty, have already recorded and discussed buoyancy, boy. It’s just applying buoyancy to reality.”
Naturally, Zhu Di would not read miscellaneous books such as "Kaogong Ji", but "Huainanzi" is a classic work, and Zhu Di has read it.
Hearing what Chen Kan said was so convincing, he turned to look at Ma He.
Ma He understood and quickly found the book "Huainan Honglie".
Chen Kan signaled Ma He to turn to "Huainan Wanbi Shu" and pointed to the large characters "A bag of feathers can be used to cross the river."
Zhengse said: "The ancients have already discovered buoyancy in water and used it in all aspects of life.
For example, in shipbuilding, large ships can travel on the water because of the existence of buoyancy. In the same way, there is also buoyancy in the air. As long as the mass of the object is less than the mass of the air..."
"In addition, the reason why we live on a ball and do not fall into the universe is because the earth itself has a force. My son-in-law calls this force gravity. It is precisely because of this force that we can build cities on the earth and cities on the sea. When the boat is sailing, when the apples are ripe, they will not fall to the sky, but to the ground..."
Chen Kan flipped through the book and successfully confused Zhu Di and Ma He.
After listening to Chen Kan's crackling words, Zhu Di interrupted Chen Kan with stars in his eyes.
"Stop, you should keep this knowledge to discuss with the doctors from the Imperial College."
Chen Kan smiled shyly. He also knew that it was really difficult for a big man like Zhu Di to master the practical principles of operation of various machines.
After all, he was really busy, so busy that he couldn't hold anything else in his mind.
Ma He, who was standing aside, looked at Chen Kan's young face and felt a sense of admiration in his heart.
When we first met, this prince-in-law was so stupid that he almost got hit by a horse and didn't realize it.
But today, his explanation of buoyancy alone is enough to show that this prince-in-law is indeed knowledgeable.
As expected of a student taught by Fang Xiaoru, this knowledge is really great.
Zhu Di calmed down for a long time and finally recovered from Chen Kan's knowledge trap.
He was afraid that if Chen Kan continued to talk, he would become unfamiliar with this world.
He quickly urged: "Go to the harem to pick up Chang Ning. I guess she should have finished talking to the queen about the family affairs by now."
Chen Kan didn't say any more. Zhu Di himself was a suspicious emperor.
He only needs to make a start for many things, and Zhu Di will naturally let others handle the follow-up.
For example, he just casually mentioned that there are mountains of gold and silver overseas, and Zhu Di will definitely be interested.
He bowed to Zhu Di, then bowed his hands to Ma He, then left the side hall and walked along the harem.
Watching Chen Kan's back gradually disappear, Zhu Di's eyes showed a thoughtful look.
He held the globe in his hand and weighed it, staring straight at the word "Da Ming" marked by Chen Kan.
He murmured to himself: "Is this the only part of my Ming Dynasty? Is the sea really so broad? Is there really a lot of land on the other side of the sea that is no smaller than the Ming Dynasty?"
After muttering to himself for a while, Zhu Di turned to look at Ma He and asked: "Ma He, I remember that you grew up on the water, right? What do you think of buoyancy?"
Ma He withdrew his gaze and said sternly: "To return to Lord Long Live, I have indeed lived on the bank of the Dian Sea since childhood, but I have never studied the buoyancy in detail. After all, ships have floated on the water since ancient times. .”
"interesting……"
Zhu Di stared at the ocean, which was more than twice as wide as the land, and fell into deep thought.
After a long while, Zhu Di said: "Ma He."
Ma He bowed and said, "My servant is here."
Zhu Di said calmly: "This boy said that there is a mountain of silver in the Japanese country, which is inexhaustible. You can take the navy to have a look. If it is true..."
Ma He heard the implication of Zhu Di's words and immediately knelt down on one knee and said: "Long live the Lord, don't worry, I promise to complete the task."
"Go ahead..."
…
After brainwashing Zhu Di, Chen Kan felt refreshed and even walked with much lighter steps.
Before, he was still worried about how to promote Zheng He's voyages to the West.
Now that we have the globe as evidence, I guess Zhu Di will not imitate Kang Mazi and put the globe on the shelf, right?
However, there was only so much he could do.
Anyway, if Chen Kan is asked to take the navy to circle the earth to prove to Zhu Di that the earth is round, Chen Kan will definitely not be able to do it.
The sea is so dangerous.
As expected, Chen Kan was stopped in front of the palace gate again.
The two young eunuchs nodded and bowed to Chen Kan and said: "I forgive you, Prince Consort, it's not that the slaves won't let you in, it's actually the harem. Without the Queen's order, even Your Majesty..."
Before the two young eunuchs finished speaking, a childish voice sounded from behind the moon gate: "The Queen's decree declares that the consort Chen Kan enters the palace~"
In this three-acre harem, there is only one person who can really talk about things, and that is the queen. This is a rule that was established during the period of Taizu.
The queen rules the harem, and the emperor rules the world.
Therefore, if Chen Kan wanted to enter the harem, he had to get the queen's nod, even if Zhu Di said so.
As soon as he finished speaking, a tiger-like little head poked out of the moon door.
It sounds a bit out of place for His Majesty the Grandson to do this kind of job of delivering messages.
But there was no such consciousness on Zhu Zhanji's chubby face.
He is one of those people with ADHD who is willing to do anything as long as he can have fun.
Hearing this, the two young eunuchs looked at each other and asked an adult man to enter the harem. This was the first time since His Majesty ascended the throne.
You must know that even during the period of Emperor Taizu, except for Xu Dadang and those old brothers of Emperor Taizu, there were only a few people who could enter the harem.
But that was the founding period of the People's Republic of China, and the rules were not yet complete.
Later, various rules and regulations were established, and Xu Da Tanghe rarely entered the harem.
Now the Queen has broken the rules for a newly promoted prince-in-law. What kind of favor is this?
They knew clearly that even the prince-in-law married by the queen's own daughter did not receive this treatment.
Chen Kanke didn't care what the two young eunuchs thought. Now that he had the permission of the master of the harem, he strode into the moon gate and faced the little fat man.
He cupped his hands and said, "His Royal Highness the Emperor's eldest grandson."
Little Fatty rolled his eyes and suddenly hugged Chen Kan's thigh: "I heard from my sister-in-law that you gave Grandpa Huang a very special gift?"
Chen Kan nodded and said, "Your Highness, it's just a gadget."
But I was a little suspicious in my heart, what kind of trouble is this little fat guy going to do?
