Looking at everyone's surprised expressions, Ying Feiyu secretly said in his heart: If you can think of anything, there will be nothing to do with him today!

"Playing while learning and playing middle school is the best way to improve the quality of education, which is much better than blindly memorizing!"

"Really! Your Royal Highness the Crown Prince, what you said makes so much sense! ”

The old ministers who had just been rehired by the Ministry of Education were full of wrinkles on their faces, but at this time they showed great surprise and admiration.

"Humph!"

Like them, Ying Zheng also felt that it was reasonable, but at this time, Di Yuan's statement had not been resolved, he still kept a strained face, pretended to be angry, and snorted coldly from time to time.

In a moment's time, the little waiter took a few people and turned back with things!

"Huh? Your Royal Highness the Prince, now that the sun is high, what are you telling them to do with oil lamps? ”

Feng Qujian looked at the things brought back by the chamberlain, and was very puzzled.

In addition to the oil lamp, there are a few goose eggs and eggs, and I don't know what to do!

"You kid are planning to fire here, how many of them will fry us?"

Ying Zheng glanced at it and also mocked.

"Father, you just look at it......!"

Ying Feiyu smiled indifferently and didn't explain too much, only waved his hand at his subordinates, "Cover all the windows!" ”

"Yes!"

The little palace maids got the order and hurried to do it.

After a while, the light in the room became dim!

Since it was noon and the sun was abundant, even if the curtain was closed, the light would still come in!

"It's okay, it's enough!"

Ying Feiyu just wanted to make the room a little darker, so that the experiment would be better.

I didn't expect to make the house black!

"What the hell are you doing with it?"

Looking at this series of operations, Ying Zheng really couldn't figure it out.

"Do the experiment!"

Ying Feiyu ordered someone to light the oil lamp, and picked up an egg and a goose egg himself.

Although the goose egg is relatively large, it is snow-white, which he compares to the moon, that is, the moon!

And the eggs are compared to the earth by him, that is, the ground under their feet!

Oil lamps are lit and compared to the sun!

"Father is optimistic, this egg in the hands of the son-in-law, that is, the land we are stepping on now, it is indeed a ...... that keeps turning!"

"Impossible! When pigs fly! Why can't we feel it when it's turning? ”

Ying Feiyu put on a good posture, just started to explain, and after saying two sentences, he was interrupted by the scumbag, and the fire in his heart was almost not chosen.

Later, when I thought about it, the thinking of this era is more stubborn, especially people with the identity of a scumbag father, who are used to it, must be self-centered, and are easily unwilling to accept other people's suggestions!

"Father, let's do this, okay? You listen to me first, and when I'm done, if you still have anything you don't understand or have questions, you can ask them again! ”

Ying Feiyu is really patient and endures not to get angry.

Then he turned his gaze on Feng Quji and the others, "You are the same, don't speak, if there are any questions, when the prince has finished speaking, you will mention it!" ”

"Uh-huh!"

At this time, the old guys sat on the chairs one by one, really like a student, nodding honestly.

"Alright, let's move on!"

"The ground under our feet is indeed round, but its area is huge, and its circumference is about 80,000 li!"

Ying Feiyu said as she drew a circle on the surface of the egg with her fingers.

"Sizzle......"

Because they were not allowed to speak, even if Feng Quji and the others were shocked, they didn't dare to say anything, so they could only gasp.

It turned out that the ground under their feet was so big!

Last year, Great Qin sent troops to attack the Peacock Dynasty, a total of thousands of miles away, they already felt far enough, this is a place that Great Qin's footsteps have never reached!

Unexpectedly, for the whole world, this is only a small part!

"The ground under our feet can be called the earth, and the moon in the sky is also round, so it can be called the moon! Remember these two names! ”

"First of all, the earth we live in rotates on its own, and each revolution is what we call twelve hours, or twenty-four hours!"

Ying Feiyu suspended the egg in his hand in the air, parallel to the light of the oil lamp, and turned it in a circle to simulate the rotation of the earth.

"You may wonder why the earth is turning and we are not aware of it?"

As soon as the question came out, the veterans nodded again and again.

That's exactly what they had in mind!

"This involves another problem, which is called gravity!"

"All objects will have an attraction, this is another aspect of knowledge, it's very complicated, let's save it until we get back!"

"To put it simply, the earth has an attraction, so we can stand here steadily, even if we jump, we will be sucked back by this attraction!"

"If you think about it, the earth is so big, and the speed of rotation is not fast, and we are steadily absorbed by this attraction, we must not feel it!"

"Oh!"

After a detailed explanation, the old goods suddenly showed a look of sudden realization.

"Look! This candle flame is like the sun, when the earth faces the sun, the other side loses its light, and it becomes night! When the earth turns back, it's daylight! It's called rotation! ”

"At the same time, he will also circle around the sun, which is called revolution, and this is how the ...... is formed throughout the year!"

Next, Ying Feiyu introduced in detail the key to the formation of spring, summer, autumn and winter.

"Let's talk about the moon again, it really revolves around the earth, and at the same time it rotates, it revolves around the earth! Moreover, it does not emit light on its own, and the reason why we can see it glow at night is just a refraction! ”

There are a lot of things involved in this, and Ying Feiyu explained it in detail.

The piggyback also explained why the moon is cloudy and sunny!

The old goods stared at the two eggs in his hand motionlessly, and they didn't even dare to blink their eyelids, for fear of missing something!

Later, he used other eggs to represent the planets such as gold, wood, water, fire, and earth, and briefly explained why they didn't bump into each other!

"Okay, what this prince wants to talk about has been finished, just ask any questions!"

After explaining all this, Ying Feiyu was tired of having a dry mouth, and dried two cups of tea in one go.

The palace maid also ripped down the curtain that blocked the window, and the sunlight spilled into the house through the window again, shining warmly on the person!

"Hoo ......"

The fire was blown out, and Ying Zheng and the old guys came out of the shock.

"All of this is true, you kid?"

Ying Zheng's brows were furrowed, and his face was full of incredulity.

He had never heard such an unbelievable idea, so much so that he couldn't believe it was true or false!

"Father, I've been working hard for a long time to get emotional, and my mouth is dry, do you think I'm playing with you here?"

Ying Feiyu was not happy at that time.

He worked hard there and talked carefully for a long time, but the old guy didn't listen to it at all!