"Don't believe me? Then let me ask you, when you sail on the sea, is the boundary between the sea and the sky flat or round? ”

As soon as Deng Yan said this, he was stunned.

People on land may not feel it yet, but when they sail in the vast sea, they feel it most profoundly.

After all, there are too many obstructions on the horizon to be intuitively felt, but the sea line of sight is good, completely unobstructed, so the shape of the sea level can clearly see the arc.

Deng Yan walks on the sea all year round, and such a scenery is really familiar to him.

Although it was commonplace before, no one had seriously thought about the truth in it, but now after he pointed it out, he thought about it again.

But even so, he still couldn't believe that the ground under his feet was round, because it was so incredible.

The point is that I can't figure out the truth at all, "In that case, why don't people fall down when they stand on the earth?" ”

The earth is formed by the gravitational attraction of matter particles to each other, condense, accumulate and evolve.

And the main reason for the formation of the earth's gravitational pull is due to the magnetic force of the earth.

In addition, in the process of the Earth's rotation around the Earth's axis and its revolution around the Sun, the Earth creates a gravitational attraction due to the interaction of the Earth itself and the Earth with the Sun.

In modern times, anyone who has been in junior high school knows this knowledge point, but it is not easy to explain it to an ancient person.

"To put it simply, the earth under our feet has a magnet in the center, which is a huge magnetic ball.

If you think about the compass used for navigation, it is precisely because of the magnetic force generated when the earth is spinning. ”

Liu Zhi felt that he had made it clear enough, but unfortunately Deng Yan was confused, and new problems arose.

"Wait, what are you talking about...... Earth, it's still spinning? ”

This scene is simply unimaginable, Liu Zhi had to simply bring a few golden balls of different sizes and simulate the sun, earth and moon to explain.

The Deng Yan siblings were dumbfounded when they heard this, and they couldn't believe their eyes at all, which completely overturned all their previous knowledge of astronomy.

As Liu Zhi's pillow man and best friend, they have always had some overly mythical speculations about Liu Zhi's various whimsical ideas.

After all, there is no way to explain this kind of thing, it can only be attributed to strange forces.

But they never doubted Liu Zhi's words, firstly because of his identity, and secondly, because no matter how strange his previous words were, they were all realized in the end.

"Okay, I'll talk to you about the relationship between the sun and the earth in the future, and what we're going to talk about now is the great plan."

As he spoke, he accidentally crooked the building, and Liu Zhi hurried back to the topic.

"There's a good way to prove that the earth under our feet is round, we just start from a point and keep going, and one day, we'll be back where we started."

Liu Zhi used the golden ball as a model to show him, Deng Yan nodded, "If it's really round, it's true." ”

"So, I'm going to spend a few years on a circumnavigation of the world and prove it to the world.

The earth under his feet, he is spherical. ”

As he spoke, he looked at them with a smug face.

"When the time comes, I, Liu Zhi, will definitely be able to become the first person in the world, remembered by the people of the whole earth, and will be remembered for eternity, hahaha......"

Deng Yan and the queen glanced at each other, they were a little speechless, this person is too strange, a good emperor is not appropriate, he has to toss, and he feels very excited.

"If it can be confirmed, it is indeed a great plan."

However, Deng Yan also had to admit that Liu Zhi's plan was indeed remarkable.

"Come on, let's talk about how to sail."

Liu Zhi felt that he had finally found something he liked, and couldn't wait to pull Deng Yan to discuss it immediately.

"Your Majesty wants to decide the route, first of all, you must determine the month of departure, so that you can determine which way to go."

In the end, Deng Yan has rich sailing experience, and the season will affect the wind direction and sea currents, so he doesn't go wherever he wants.

"Probably the year after...... No, no, no, next year, next summer, how? ”

Seeing him so impatient, both of them couldn't help but sweat silently for Liu Jin, poor child.

Let's not say that he won't be able to walk next summer, but seeing that he is happy now, it is not good to discourage his enthusiasm.

"Tomorrow summer, let's go west."

"Okay, the west and the east are the same, anyway, they will come back to Dahan in the end.

We walked along the Maritime Silk Road, and when we reached the strait, we did not turn around, and went straight forward.

Finally, I came back from South America, and I guess along the way, at least...... It will take three or four years. ”

Of course, this is a relatively optimistic and conservative estimate, and Deng Yan naturally disagrees, and it is difficult to predict all kinds of risks at sea.

Moreover, such a long-term travel without a set route is even more dangerous, and all kinds of unknown risks at sea will often bring about catastrophe.

No one knows how far the whole journey is, and he thinks that it is already very good to be able to come back in five or six years.

Of course, he didn't say this, anyway, it will be a long time, and it is unknown whether there will be any changes.

Besides, there is still more than a year to prepare, so try to be as foolproof as possible when the time comes.

That night, Liu Zhi left Deng Yan in the palace for the night, and the two fell asleep and chatted all night until dawn, but they were still unsatisfied.

Queen Deng Meng was also very helpless when she saw it, "Your Majesty also said that you want to go to sea to do some kind of round-the-world travel, so you don't cherish your body, and then a wave will knock you down." ”

Liu Zhi laughed when he heard it, and then let Deng Yan leave, it was not easy for him to go back to the capital, he entered the palace as soon as he came back, and he didn't have time to go home to take a look.

His mother, Mrs. Xuan, is still alive, and when she heard that her son had returned, she was still anxious at home.

In fact, Liu Zhi is still a little envious of him, he can have his mother here, at least he is much better than him in this regard.

This night, Deng Yan was in a dream, and it felt completely unreal, the emperor didn't want to be the emperor anymore, and wanted to follow him to sail.

Ancient and modern, Chinese and foreign, are unheard of.

If this thing spreads, he will immediately become the target of everyone, and the spittle stars of the Manchu Dynasty can drown him.

A person who is accused of bewitching the king and bewitching the king to do something chaotic will not be able to escape, so they will not care if the emperor himself acted willfully.

Seeing that the mount arrived at the gate of the Nandun Marquis Mansion, Deng Yan saw his mother standing there in anticipation from a distance, and her silver hair was particularly dazzling.

Quickly collected his worries, jumped off the horse with a smile on his face, and ran quickly towards Mrs. Xuan......

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