Sure enough, Ah Yu paused for a moment, let everyone understand, and continued: "This kind of ice can also form a convex lens, so the word Yi was originally the meaning of my use of utensils as a mark, 丨 represents the actual bamboo tube, the water surface of a bamboo tube represented by three horizontals After the layer of water formed an ice surface, it expanded and expanded to the upper and lower sides, and was marked by me. The three endpoints on the left side of the three horizontals, if connected by an arc, are a convex surface. At the same time, this word also represents the three rays of light through the convex lens, converging into a point, gathering light like a flame. ”

Undoubtedly, this is why the word spirit is born, which is the subtle meaning that a convex lens made of ice can concentrate light and ignite fire.

For this reason, the word "attribution" comes from this, and the left side of it, in fact, and the arc), which represents light and shadow, through the convex arc), which is grouped into a point by three lines.

Return, wandering wanderer!

It is said to be attributed to the Gen point.

The species that belongs to China, the Gen of China!

In the end, he said: "Such a convex lens can also represent the starting point of water change, so I will use the number zero to represent the shape of the convex lens, that is, 0." ”

What a marvelous 0!

That's how the number 0 came about!

"Ahh Yes! Yes! Ah, that's amazing! Zhang Jingtao is habitual, and he praises it with ah.

Ahh smiled with a dazzle.

squeezed his eyes at Zhang Jingtao again.

If it were a different person, it would not be clear why he was squeezing his eyes.

Zhang Jingtao understood that although Ah said that he played the role of a convex lens and the convex lens as a convex lens, he did not elaborate on the spiritual word, and did not say that he could use a convex lens to make fire thoroughly.

Ah, he only said that the convex lens can gather light like a flame.

These students who listened to the study would never have thought that borrowing a convex lens could also make fire, and it was not easy for them to understand the civilization that Ah He talked about.

Fortunately, what Ah He created was the only civilization, the easiest knowledge in the world, which was both taken from life and extremely subtle, and these students could understand it, especially the more than 300 children.

Then, in the mysterious atmosphere, the children saw the astigmatism effect of the concave lens.

Gather for yi, scatter for three.

The three endpoints of each of the three horizontal and two sides of the three characters are arranged to form two concave surfaces), forming a concave lens, which has the meaning of divergence.

For this reason, Ah used S to represent divergence, and A to represent the depression of the lake.

It represents a three-dimensional medium like a door that can transmit light, and pronounces it as sa

。

The appearance of these three characters completely represents the combination of words and derivative usage.

Moreover, this represents not only the addition of one plus two equals three, but also the subtraction.

Three and then remove one, naturally it becomes two again, for this reason, this subtraction is represented by one.

The word salty means that the "plant" of the water body is reduced by "one" in order to explore the "mouth" of the small lake that can be explored to the bottom of one "ge", so it has become a salty salt lake.

So, why does the small mouth here mean to get smaller?

As long as we compare the location of the water body 'factory' and the small lake 'mouth', we can understand that the factory body completely accommodates the small mouth.

In one word, there is a contrasting relationship, and it also represents the understanding of the natural world, which is extremely exquisite.

It also contains ingenious living techniques on how to obtain salt water in nature.

It is conceivable that in modern times, the word 'one' has not been created, only o

E or other foreigners in bird language, how could they invent the subtraction symbol 'one'.

This once again proves that all mathematical symbols come from the only civilization of mankind, the Chinese civilization.

However, how the more mysterious word 'four' came about, Ah Ha did not continue.

Although Zhang Jingtao couldn't help but flip through the bamboo slips where Ah Ah recorded the text in the afternoon, he knew that Ah Ah had created a lot of words in his recent days.

When he only roughly saw the word 'Xi', he swept over and didn't look at it, and finally his soul was stable, and he was not forced to fall into the Warring States.

After the next three, Ah only spoke a lot of words such as 'mouth' and 'big'.

On the second day, Ah took the thirty-one women of Lady White Bone to watch the issues they were most concerned about.

That's the food security she talked about.

Not only did they see animals in captivity, but they also saw fish ponds, mulberry forests and farmland.

Ah He first introduced captivity, and also gave salted duck eggs to several women.

Salted duck eggs are a magical food.

This is a food that can tell more than preserved eggs where the animal husbandry civilization came from.

The human race that domesticated chickens and ducks, the source of animal husbandry technology, the Chinese people, almost naturally, would make salted duck eggs because of pickling duck eggs.

Moreover, the only person in the world who can play salted duck eggs is the Central Plains of China.

Even according to customs, it can be clearly seen that salted duck eggs originated in Jiangnan, where porridge is used to drinking.

So, it is very amazing that the foreigner who seems to be good at marinating all kinds of meat, but there is no salted duck egg.

Because they have no animal husbandry, only a curing culture that comes from pure natural hunting.

Even though they are used to marinating all kinds of meats, they don't even think of marinating duck eggs, because they don't have animal husbandry and don't have extra eggs for them to pickle.

You can catch a few eggs when hunting in the wild, and you don't eat them when you get them.

Later, foreigners learned animal husbandry, but because they only stole civilization, they never thought that duck eggs could be pickled.

As a result, foreigners from any country will not make salted duck eggs.

Another very interesting proof of where civilization came from.

It's just that Ah He didn't introduce the mulberry tree, obviously he didn't plan to tell everyone one of the core of the silk clan, the secret of silk, because silk is extremely tough, Ah Ah is already using silk to make longbows, this secret, almost retained to modern times, for this reason, in modern times, only the Central Plains people can make silk, there is no silk there for foreigners, and the silk of foreigners is all imported from the East.

Lady Bones didn't notice that some leaves were only eaten when she was hungry, and only asked about the farmland.

"In the farmland, there are all kinds of plants, and I found that when they are planted together, they can grow very well, such as potatoes, so that we can have a lot of food. ”

Of course, the people of the flood are not ignorant of plants, in fact, the people of the flood are much clearer about which plants can be eaten than modern people.

For this reason, plants will wither, just as people will die without water to drink, and Mrs. White Bone also knows it.

Lady Bones asked, "How can we ensure that there is water in the farmland?" ”