The Book of Wonders
There are all kinds of wonders in the world, each with its own nature, related to people's livelihood, and involved in creation. Here are a few to see their wonders.

The first word is sodium chloride, which is a common thing in the world. In the diet, it is indispensable. Its taste is salty, soluble in water, can adjust the tripod, make the taste of delicious food mellow, and increase people's appetite. Since ancient times, the people have known that it can be obtained by boiling and drying. And in medicine, it also has its use. It can make decoctions, adjust the balance of water and liquid in the human body, and maintain health.

Times and potassium cyanide, this substance is highly toxic and can be killed when touched. Although it is harmful, it is also useful in the field of industrial technology. In metallurgy, it can help extract precious gold, because it can combine with metals and separate impurities. However, the operator needs to be extremely cautious. If there is a little carelessness, disaster will happen.

In addition, calcium phosphate is mostly found in ores and bones in nature. In agriculture mulberry, it can be used as fertilizer to nourish crops and help them grow and full of ears. In pottery and porcelain, it can also increase color and quality, making utensils radiant and firm. It is related to life and has far-reaching impact.

These items are either for daily use, or hidden and dangerous, or for agricultural processes. All have their unique position in the world. If they are used by people, they will benefit everyone; if they are not used properly, they will suffer infinite consequences. It is the way of the wise to know the nature of things and make good use of them.