Daqin started with offering immortal medicine

Ying Zheng also muttered, and then said with a sense of enlightenment: "Could it be that this name comes from the stars in the sky?"

Li Yang stretched out his thumb and praised: "Your Majesty is amazing, the teacher is originally nameless, this alias comes from heaven."

When Li Yang told a lie, his face didn't blush, his heart didn't beat, and he said it as if it was true.

In his opinion, anyway, the gods and immortals of the later generations are half made up by the professional clergy, and half are made by heroes from the world with incense.

Now, even if I say that the teacher's name is Satellite, it is impossible for someone to say it is false.

As for the future, when technology advances and people actually create satellites, what names they will name is none of my business.

Take whatever you like.

Of course, there is no way to use the name of "fairy" to make Ying Zheng accept the view that the earth is round.

Not to mention that in BC, that is, more than 1000 years later, Aristotle gave scientific evidence that the earth is round, and the world did not believe it. It was not until the proof of the voyage of Jay Claren around the world. Let the world slowly accept this point of view, one can imagine how difficult it is to convince the world that the earth is spherical.

It is absolutely impossible to make people think that the earth is spherical by saying "the sea level is arc-shaped".

Since people don't believe in science, they can only rely on the name of gods. Anyway, in ancient times, many things were originally stories about gods and the like.

For example, why there is thunder, because there are thunder gods on it.

Why is there only one sun in the sky, because the other suns were shot down by Hou Yi.

Why there are people in the world, because Nuwa pinched them out.

There are too many examples like this. In short, in ancient times, as long as everything was said in the name of gods, it would win people's trust.

However, there is one person whose ability to lie to Li Yang is admired, and this person is Xu Fu who returned to court a few days ago.

After he left the prime minister's mansion yesterday, he entered the palace and presented kiwi fruit according to the set of words taught by Li Yang. In addition, the fortune-telling was effective at the beginning, so the emperor did not punish him, and he was able to save his life to go to court today.

At this time, Xu Fu was amazed again and again, good guy, he is better at making up lies than the old man!

"So, is the earth really round?" Sure enough, when he heard that the earth was spherical, which was said by the gods, Yingzheng was puzzled.

Li Yang knew that it was time to strike while the iron was hot, so he said, "Your Majesty, there is actually a scientific basis for the fact that the earth is spherical."

"Oh? Tell me quickly!" Ying Zheng became very interested.

Of course, all civil and military officials were also very curious at this time, wanting to know what else Li Yang could say.

Li Yangdao: "Xu Fu happened to be here today. In fact, he has the most right to say whether the earth is round or not."

"What? Xu Fu has the right to speak!"

Suddenly, everyone looked at Xu Fu in surprise.

But Xu Fu was stunned.

How did the old man know that this world is round and square?

Xu Fu originally wanted to help Li Yang realize this lie, but after thinking about it, this lie is too absurd, so he finally shook his head: "Prime Minister Zhong, how would I know this?"

Li Yang smiled: "Actually, you know, it's just that you didn't think of it."

"Oh? Then I'll ask Prime Minister Zhong for advice." Xu Fu said politely.

"As the saying goes, you can see far when you stand tall. Similarly, you can see the sky when you stand on a flat terrain. On land, the line of sight is naturally blocked by mountains, but on the sea, there is no limit to the horizon."

Speaking of this, Li Yang looked at Xu Fu and said, "Let me ask you, you have traveled across the ocean all year round, haven't you discovered that the sea level is arc-shaped?

As soon as these words came out, Xu Fu was stunned: "This... the sea level is indeed a circular arc!"

Li Yang smiled and said: "If the earth is flat, how can the sea level be arc-shaped? Therefore, the earth is a sphere, and the sea level is the evidence."

This time, everyone frowned.

Especially Yingzheng, he also went out to sea and took a boat on his east tour, so the sea level is arc-shaped, and he has seen it with his own eyes.

All of a sudden, everyone became suspicious, could it be... the world is really a sphere?

It is already a success to make people of this era question the roundness of the sky and the earth.

Li Yang continued: "Actually, not only the earth is spherical, the sun is also spherical, and the moon is also spherical. Because they are far away from us, we see them as a spherical ball hanging in the sky. In fact, if people can Standing on the sun or the moon, you will find that our place is also a sphere."

Everyone was stunned by Li Yang's shocking remarks.

At this time, Zhang Cang, a mathematician, was more thoughtful, and immediately came out to ask questions: "I would like to ask Prime Minister Zhong, if the earth is a sphere as you said, like the globe you made, how many suns does the sun have?" ? Are the people on the back of the earth always facing the night? And why do we have day and night?"

"It's a good question, I have to do an experiment on this!" Li Yang smiled.

Everyone was confused.

I don't know what Li Yang is going to do again?

Li Yang knows that this is a good opportunity to popularize science to the world. If it can let them know that the earth rotates, it will advance Daqin's astronomy and physics by more than 1000 years.

Li Yang immediately asked the palace servants to fetch a candle, and placed it on the east side of the globe.

Then he said: "Look, everyone, this globe is the world we live in, and this candle is like the sun in the sky. Where the sun shines, it has light, so it is day, and the back is night. And the earth is actually a living world." Yes, it spins on its own..."

While saying this, Li Yang slowly rotated the globe and said: "Look, when the earth rotates, the sun's light gradually cannot reach the place just now, so it turns into night. Until... …The earth continues to rotate, and the morning light of the sun slowly descends on this land again, which is why there are days and nights.”

"........."

silence!

The whole hall was dead silent!

Everyone, look at me, I look at you, booing each other, everyone is completely shocked by this experiment!

It's not that this experiment is difficult to understand, but that this experiment is too simple and easy to understand, so after reading this experiment done by Li Yang, everyone can understand why there are day and night at a glance, and the theory is even more irrelevant.

OMG!Could it be that what Li Yang said was actually true?

At this moment, even those who thought Li Yang was ridiculous before had to believe it.Because, apart from Li Yang's statement, you can't find any other theory to explain why there are day and night.

Seeing everyone's surprised looks, Li Yang knew that his experiment was a success!

At this time, Zhang Cang, a mathematician, asked: "According to this, the back of the earth is also the sky when you look up, so what is the sky?"

Li Yangdao: "The sky is the vast universe. I don't know how big the universe is. It includes the earth we live on, the moon, the sun, and more distant planets. The stars we can see may all be like this." The earth we live on is as big as the earth. In short, the universe is infinite. It is precisely because it is infinite that you can’t tell whether we are standing on the back of the earth with our heads facing down. Because the universe is so big, there is no up and down. It is so big that it loses its concept.”

In the end, Li Yang concluded: "So, why the rivers on the back of the earth don't flow upwards is actually because the earth has gravity, so apples will fall to the ground instead of to the sky."

This time, no one raised any doubts, and no one dared to laugh at Li Yang's nonsense.