Xu Wenbin is a troll, which makes Qin Hao laugh.

And he is not a simple troll, but has a serious expression and is very serious about correcting people's wrong views.

In comparison, Qin Maocai is much more settled, he has always watched quietly, occasionally running to Xu Qing to take a look, and then swiping the screen with his fingers to write: more, more.

"What the hell is he doing?"

When Xu Wenbin got home, he was still confused by his mobile phone, and finally figured out how Xu Qinglang made money from those videos, and in a blink of an eye, this kid was working again.

Armor made of steel rings?

Just thinking about it, a message popped up on WeChat, which was sent by Xu Qing, recommending manual Geng to him.

"Dad, it's okay for you to look at this. 」

"What is this?" Xu Wenbin asked.

"Just look at it. 」

Xu Wenbin tried to find out, frowned in the face of a large number of inventions, and randomly chose a 'homemade inverted hair washing machine' and clicked into it.

A new modern version of torture appeared unexpectedly.

......

The Greek philosopher Ari ...... In his book On Heaven, Stotle was able to make two powerful arguments for the belief that the earth is a sphere and not a flat plate.

First, he realized that lunar eclipses were caused by the Earth's orbit between the Sun and the Moon. The Earth's shadow on the Moon is always round, which is only true if the Earth itself is spherical. If the Earth were a flat disk, the Earth's shadow would be elongated and elliptical unless the eclipse always occurred at a time when the Sun was just below the center of the disk......"

Jiang He was lying on the sofa reading a book, lying down and reading a book was harmful to her eyes, Xu Qing corrected her, but she thought that her eyesight was amazing, it was nothing at all, it was uncomfortable to sit on her neck all the time, anyway, it was all damage, and after weighing the pros and cons, it was better to lie down.

"What are you laughing at?"

Halfway through the reading, she found that Xu Qing was smiling mysteriously, as if he had done something bad, Jiang He rarely read to him, and now he finally read it once, and Xu Qing still didn't listen carefully.

"Nothing, you continue. ”

Xu Qing put away his mobile phone, and just pushed the handmade Geng to Xu Wenbin, so that the old man could see what it means to be a real idleman, lest he have to run over to make a dress and ask what he is doing with this ghostly thing.

He did it if he wanted to, how could there be so many reasons, he was just satisfying his own interests while adding some added value to this meaningless thing to see if it could attract people.

When it's ready, put it on and go around the house, and let Xu Wenbin see the handicrafts he made when he is full......

"So you're also a philosopher?" Jiang He pondered seriously.

"Why do you ask that?" Xu Qing wondered if she knew what philosophers meant.

"It's all about doing things that don't make sense, like he studies whether the earth is round or not. ”

"Why do you think that the earth is not round and meaningless?"

"Isn't it?" Jiang He didn't understand the difference between round and flat.

Anyway, they won't run to the edge of the sky and fall...... What does it matter if it's even a triangle?

"Hmm...... Obviously not, only by understanding the nature of the world, can we develop better, he discovered that the earth is round, Copernicus discovered that the earth revolves around the sun, Newton discovered gravitation, this is called science. ”

"And what's the use of science?"

"Food, shelter and use are inseparable from science, see the light bulbs, and computers. ”

"Oh......"

Jiang He was thoughtful.

Xu Qinghu looked at her suspiciously, wondering what kind of whimsy this grandmother who had not received nine years of compulsory education.

"Even if you learn this book and learn science, you can't go back to Kaiyuan and make a computer and open a video with me. ”

"Is that so?"

"Don't think about messing around. Xu Qing stood over and rubbed Jiang He's hair, messing up her hair, "Just look at whether the earth is round, its meaning is to let you know what kind of world you live in and know the world." ”

"Don't mess with my hair. ”

Jiang He opened his hand dissatisfiedly and continued to read.

"If you learn mechanics or something...... Your kung fu should be even better.

Descending from the sky like the Nyorai Divine Palm, it uses gravitational acceleration and inertia to increase its power and slap a big crater on the ground. ”

"I'm going to fall to my death. Jiang He said.

"Okay. ”

It's not realistic to expect Jiang He to knock out a time machine or something with her bare hands, even if she looks at a brief history of time, she can only understand the part she can understand, but it is enough, she can understand what the world she lives in, and having an idea of the earth and the universe is the first step to becoming smart.

The perception of the world has moved from mysticism to laws, and this law exists objectively, and this new worldview can allow her to understand the world with another kind of vision - at least she will no longer regard the computer as a divine object, but only a great invention in a certain sense.

If she goes back one day, she can also brag to Erniang and them, saying that many years later, there will be Copernicus who proposed heliocentrism, Newton who has many laws to protect himself, Watt who improved the steam engine, and Xu Qing, who is idle but very good to her.

In the evening, when Xu Qing was feeding the winter melon, Jiang He sat up from the sofa and stretched, put the book aside and prepared to cook.

The meal at night was very simple, but it was quite complicated to make, Jiang He was busy until nightfall, it was dark outside the window, and the lights were on in the living room, before he came out with a large plate of steamed buns and put them on the table.

There are fennel eggs and cabbage meat fillings, and they are also distinguished in appearance, the vegetarian is twisted into a spiral pattern at the middle seal, and the meat is pinched and flattened by Jiang He.

"I see. ”

Jiang He suddenly made a sound while eating meat buns, which made Xu Qing a little confused, what did she understand?

"It's that you don't have a shortage of food and drink, and you have what you want, so you have a lot of time to do things that don't make sense, and then you invent these things. ”

"You've been thinking about this?" Xu Qing was a little surprised.

"Ah, it just came to mind. ”

"Congratulations on your transformation from a stupid little seedling to a smart little seedling. ”

"Am I right?" Jiang He asked.

"Part of the reason is that social development always starts with increasing productivity, and if productivity is insufficient, it is useless to say anything, so you have potatoes in your bag instead of a computer. ”

"But what's the point?"

"You can think of that, and that in itself is meaningful. ”

If Newton was dying of starvation, he would definitely rub and eat the apple, who wants to break the gravitational pull.

The fist-sized buns, Xu Qing was almost full after only eating five, and the remaining few Jiang He didn't finish it, and he planned to fry them in oil tomorrow and eat them with porridge.

She had already discovered that most of the food could be left over and fried or stir-fried in oil to make it even more delicious, such as steamed buns, such as rice, such as fried dumplings and fried cakes.

The ginger seedlings in the living room have grown a little more, and the leaves are verdant and green, standing tall next to the TV.