Okay, then this question should be regarded as an after-school homework for you, and you will find time to complete it later, you must know that the process of thinking is actually the process of recognizing the true self, and the deeper the cognition, the more profound our understanding of this world will be. ”

Gu Juan was very understanding, and immediately agreed to the request that the concubine didn't want him to continue, and was about to end the conversation after a little summary, but suddenly remembered that this guy seemed to have two questions that needed to be answered.

"The first question is put aside for now, and the second one can be said now. ”

The heavy white mist slowly returned to her body, and she gasped for breath, drenched in sweat, as if she had just done some strenuous exercise and had not really recovered.

"On the second incomprehension. ”

She tried to calm her breathing, and said slowly in thought, "It has been a long time since I gave birth to my spiritual wisdom...... Looking at the starry phenomena in the night sky now, it is completely different from the starry night ten thousand years ago, what does Gu Shenjun think about this?"

Are heterogeneous people also studying astronomy?

Gu Juan was slightly stunned, and then showed a smile, "It's very simple, because they are moving...... From dust and mustard seeds to starry skies, they have always been and will always be in an uninterrupted regular movement, never ending, never stopping. ”

She took a deep breath and slowly exhaled it, calming down her suddenly somewhat inexplicable and complicated emotions, and pointed to the stone that was motionless at her feet and said, "You mean, even this stone has been moving!?"

Gu Juan nodded, "Of course it's moving, because the land we are on is moving. ”

She frowned and sneered, "Ridiculous! Heaven and earth are moving, why can't I feel heaven and earth moving?"

"Huh...... Summer insects can't speak of ice, well frogs can't speak of the sea, when will your own feelings be able to replace the principle of the operation of heaven and earth?"

Gu Juan did not hesitate to ridicule the ridicule in his tone, "In my eyes, not only is the heaven and earth moving, but the infinite heaven and earth you think of is just a ball at all!"

"And it's an earth ball that is smaller than most of the stars in the night sky, I don't know how many times!"

She narrowed her eyes sharply, "It's nonsense, it's ridiculous!"

Gu Juan smiled, "For an intelligent creature who can think independently, ignorance and arrogance are the biggest enemies that hinder its progress to a higher level. ”

"Sister-in-law, can you recall, when you walk towards the mountain, why is it that the first thing you see is always the top of the mountain, until you get closer and closer, you can get a glimpse of the whole mountain?"

"How could this happen if the sky was round and the earth was flat?"

She fell silent for a long time before she asked again, "I still don't believe that if the earth is round and moving, then why can we still stand on it instead of being thrown down into the void?"

"It is because our bodies are so small that we cannot feel the gently undulating curves, let alone the rotational movement of the earth, just as there is oil sludge on the body of a person, and there are tiny lice living on it. ”

Looking at the silent sister-in-law, whose eyes were full of entanglement, Gu Juan was in a slightly happy mood, cleared her throat and said seriously, "Actually, if you want to judge whether what I said is right or wrong, the sister-in-law girl can personally verify one or two." ”

"How do you verify it?"

"Can you fly?"

"I can ride the wind. ”

"It's just a bit of a dilemma, I'm afraid you won't be able to fly high enough, and see if the earth is a ball from a distance. ”

Gu Juan looked like he was thinking about her, and then said, "Then are you running fast?"

"It should be faster than you. ”

"Can you swim long distances?"

"I can ride against the wind, whether on the water or on land, without worrying about not being able to last. ”

"That's fine. Gu Juan casually grabbed a handful of snow from the ground, kneaded it into a round snow ball, and then drew a circle around the surface of the snow ball with his fingers, "Do you see, this is the second verification method." ”

"I see, if you're right, then when I keep going in one direction, I'm going to come back to where I came in eventually. ”

Gu Juan stroked his palms and smiled, "Miss Sister-in-law is really smart and smart, she can understand it at all, but before leaving, I also want to remind you that you must not lose your life because of your carelessness." ”

She nodded, looked at Gu Juan with sparkling eyes, and said with a slight opening, "Please speak." ”

Gu Juan restrained his smile, and his expression suddenly became serious, "What I want to say is that you must be careful when walking around the ground, after all, you and I are in the upper hemisphere, you don't need to worry about falling, when you get close to the lower hemisphere, you must choose a strong enough rope in advance, and before each step, it is best to tie yourself up and tie it tightly, so as not to lose your footing into eternal hatred, and then look back at the void." ”

She nodded again and again, "What you said is very reasonable, I will keep it in mind...... It's just that I still don't know, if the earth is really a huge ball of earth, then are the stars in the night sky also much smaller and shining spherical than the earth?"

Click!

The little foot that could only be held by Yingying shrank back suddenly, and she looked down to see that the cobblestone at her feet was broken by Gu Ju, turning into large and small gravel scattered all over the ground.

The next moment, as if an invisible hand was playing, most of the surface of the gravel ignited with scarlet flames, and then all the gravel began to slowly rotate and move, drawing an oval trajectory on the snow.

Then she heard Gu Juan's voice ringing in her ears, "If this is the starry sky, which of them do you think will be the earth we are standing on?"

Without waiting for her to answer, he bent down and picked up a non-burning gravel particle that was at most the size of a soybean from the pile of rubble, and held it up in front of her eyes, "In comparison, what we think of as the Endless Earth may be many times smaller than it, you know?"

She looked up at the cloud-covered night sky, her eyes full of disbelief, much more surprised than when she heard that the earth was a ball just now, "Are those stars so big, why do they look so small, why can't they be seen at all during the day?"

Gu Juan looked up at the sky with her, "You look at them because they are too far away from us. ”

"You can't see them during the day, and the reason is simple......"

He raised his left hand, and a bright and dazzling flame rose from his palm, and then placed a gravel behind the flame, "The sun is actually the same as those shining stars, except that it is too close to us, and the light is too dazzling, blocking the light of the other stars. ”

She stared at the dazzling flame and remained silent for a long time.

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Chapter 304: It's a Ball