Daming: Old Zhu, we agreed not to rush!

Chapter 56 The sky is round and the place?Say the earth is round!

Starry night in the night sky.

Beside the fire, Su Jing and Zhu Biao sat facing each other.

The sweet potato exudes a charming aroma under the flame.

In this situation, Su Jing recited lightly:

"Raise your head to look at the bright moon, and bow your head to think of your hometown."

Zhu Biao at the side said, "Master Su, there is no moon today."

Su Jing gave Zhu Biao a blank look: "I have no eyesight!"

Zhu Biao is a little innocent, because Su Jing taught him, talk about things, seek truth and be pragmatic.

Isn't there no moon in the sky now?

After being reprimanded by Su Jing, Zhu Biao didn't say anything at all, and set the fire on, waiting for the sweet potatoes to ripen.

Soon, sweet potatoes will be ready.

The two of them picked up one, but it didn't burn their mouths, and tasted it.

After the blessing of the fire, the sugar of the sweet potato is stimulated.

sweet!
sweet!
So sweet!

Zhu Biao killed one with three blows, five and two, and he was still a little bit unsatisfied.

But seeing that Su Jing hadn't finished eating, he couldn't continue taking it.

The etiquette of respecting the teacher must be maintained at all times.

Seeing Zhu Biao's appearance, Su Jing said helplessly, "Niu Yi, I've said it many times, don't make such distinctions."

"It's true that you are my student, but you don't have to eat a baked sweet potato to see my face."

"It's just the two of us here, let go of those red tapes, why don't you take it easy?"

"Didn't it be nice to remind me that there is no moon!"

Although Su Jing knew that Zhu Biao was showing courtesy, but as a modern person, he really felt awkward.

It's as if I'm still in the workplace, and what the employees below have to do depends on the mind of my boss.

Uncomfortable!

"Sorry, Master Su, the student didn't do well, please forgive me, Master Su."

Zhu Biao immediately said to Su Jing, directly making Su Jing numb.

Su Jing was really convinced.

"Forget it, I won't say it anymore, it's boring, you can eat another one."

Saying that, Su Jing directly pulled out another roasted sweet potato and threw it into Zhu Biao's hand.

I'll take it for you personally, so you should be able to eat it with confidence.

"Thank you, Master Su."

Zhu Biao thanked, and then continued to eat.

Not long after, both of them ate a few roasted sweet potatoes.

Su Jing took advantage of the situation, looked at the sky and said with emotion: "No matter what time it is, the sky looks the same."

Whether it is now or in ancient times, the sky has not changed that much.

At least Su Jing couldn't tell the difference.

"Unfortunately, my telescope has not been adjusted yet, otherwise I can try to see the stars."

Su Jing sighed again.

He is clear about the principle of making telescopes, and he has also made glass.

But this is purely hand-polished, and the precision can only be said to make do with it.

It’s okay to see people and things in the distance, but if you want to see the stars, you have to adjust slowly.

"Master Su also knows how to watch stars? What is a telescope?"

Zhu Biao asked curiously, he could always come into contact with all kinds of novel things by Su Jing's side.

Su Jing said indifferently: "Come on one by one, first answer your telescope, as the name suggests, it is a device that can see distant objects. I can probably see miles away."

"Can you see things that are miles away? Are telescopes really so magical?"

Zhu Biao said in surprise.

For Zhu Biao, can he
Su Jing said indifferently: "When did I lie to you, but I didn't make that thing very well, and it hurt my eyes too much, so I didn't show it in front of you."

Hand-polished convex and concave lenses, it is not so easy to get the focus right.

Of course, Su Jing is not in a hurry, just take your time.

"When Master Su is done, please show the students to observe and emulate."

Zhu Biao said expectantly.

This can see things inside and outside, but there are many uses.

Su Jing said lightly: "Whatever you want, I can give you one when the time comes. As for the astrology you mentioned, I don't know it, I just look at the stars."

Zhu Biao said: "Stars are celestial phenomena, which can predict good and bad times. What does Master Su mean when he says to have a look?"

The Ming Dynasty also set up a special department to observe the sky, Si Tianjian.

"Just to observe, to see what the stars look like."

Su Jing said indifferently: "The stars determine the calendar and the farming season is good, but predicting good and bad is just nonsense."

"The world we stayed in is actually a star, but it's just a bigger star."

Su Jing's words had a great impact on Zhu Biao, what is a bigger star?

His mind is in bewilderment.

Seeing this, Su Jing also decided to popularize science, and immediately asked: "Niu Yi, what do you think our world is like?"

Zhu Biao replied: "The sky is round and the place is round, and it has existed since ancient times."

"It seems that your Confucianism teacher must be very knowledgeable."

Su Jing said with a smile.

Zhu Biao frowned and said, "How does Master Su know?"

Zhu Biao's Confucian lecturer is Song Lian, who is a serious Confucian master.

But Zhu Biao didn't reveal his identity, so Su Jing probably didn't know about it.

Su Jing smiled and said: "It's nothing, it's just that if your teacher teaches you a little more about astronomy, you will know that the sky is round and the place is wrong."

Su Jing knew that the round sky and the earth should refer to a kind of philosophical thought.

The sky is in motion, but the earth is still.

The round sky and the earth symbolize the combination of movement and stillness.

Of course, he also planned to tell Zhu Biao more about this.

If you talk too much about philosophy, it is easy to fall into it, and you may become autistic.

It's good for children to say something they can understand.

"Why did Master Su say that?"

Zhu Biao asked back.

Su Jing said indifferently: "Zengzi once said, Rucheng's sky is round and the earth's four corners are not hidden."

If the sky is really round and the earth is really square, then the four corners cannot be covered.

"If the sky is big and the earth is small, it can be explained."

Zhu Biao retorted.

Su Jing asked again: "Then where is the end of the land you have seen?"

Zhu Biao was stunned for a moment, and Su Jing continued: "Zhang Heng of the Eastern Han Dynasty said in the "Notes to the Armillary Sphere" that the sky is like a chicken, and the earth is like the yellow in an egg. Living alone, the sky is big and the earth is small."

Although what Zhang Heng said was not completely correct, it was enough to explain it to Zhu Biao.

Zhu Biao asked suspiciously: "Master Su, according to this statement, isn't the earth round? But as far as we can see, the earth is flat."

The ground is like the yolk in an egg, and the yolk is round.

Su Jing said lightly: "Niu Yi, you said you have been to the beach, so you have seen sailboats, right?"

"Of course I have seen it."

Zhu Biao nodded.

Su Jing asked: "When a distant ship is approaching, which part of the ship is the first to be seen?"

Zhu Biao just recalled it, and said: "Naturally it is the top of the mast of the ship."

"Then why do you think about it?"

Su Jing smiled and stopped explaining.

Zhu Biao closed his eyes and thought, and quickly understood the joints.

"Master Su, I understand. If the ground is flat, then when the ships approach, they should be seen together. Instead, they should see the top of the mast first, and then slowly reach the hull."

Zhu Biao said excitedly: "It turns out that the earth is really round."

He was a little excited. The teachers in Dahondo would not teach him these things on weekdays.

Su Jing said casually: "It's enough to know, the stars are similar, it's just that they can't treat people."

(End of this chapter)