Article|The whole point of popular science
Although Japan is small in size, its ambition should not be underestimated. In order to achieve its goals, it can pay any price that is difficult for ordinary people to understand.
For example, Japan has repeatedly asked China for a few hairs of Mrs. Xin Chai , and even had to buy it for a lot of money, but they were decisively rejected!
Later I learned that Japan had gone to great lengths to want a few hairs in order to study the "incorruption mystery" of the corpse and the ancient DNA code . The ambitions are simply scalp tingling.
Mrs. Xin Zhui's restoration picture
In addition to a few hairs, Japan also made a puzzling decision: exchanges a pound of Japanese rice for a pound of Chinese sand .
The useless sand is exchanged for edible rice. Fools feel that they will not lose money. However, our country has a strict attitude and decisively rejected this "deal." Why is this?
First, let’s take a look at the sacred sand that Japan wants to exchange for rice.
What is special about the "sand" that Japan insists on trading rice for?
As a cunning country, Japan will not do business at a loss. This "sand" is not the other "sand".
The desert that Japan wants to exchange for rice is not the desert in the northwest region, but the "Jiangnan Desert" as we know it. To some extent, it is " China's most valuable desert ". is worth 10,000 gold .
Jiangnan Desert is located in Linxiang, Hunan , covering an area of more than 3000 acres of .
is different from the natural formation of ordinary deserts. It is caused by artificial . Moreover, the sand here is not the traditional sand . Under the sunlight, it will show the dazzling silver . Called "Silver Beach" .
Earlier, a large number of factories gathered around here. After the Taolin lead-zinc mine and other companies mined the ore, they dumped the tailings produced here, and over time it became a deserted place that no one cares about. land.
The so-called "tails" refers to the waste generated after ore grinding, also called "industrial solid waste".
In the eyes of ordinary people, these are no different from garbage. However, after day after day of accumulation, nearly 50 years of precipitation have created a unique "desert" in this area-rich in lead and zinc mineral resources "Treasure Land".
The "sand" here is different from ordinary sand. They are both metal mines with very high value.It is no exaggeration to say that every grain of "sand" here contains rare minerals that cannot be measured by money, and is more expensive than gold.
Therefore, Japan wants to exchange edible rice for a pile of seemingly useless "sand", and the purpose behind it is not simple.
Japan wants tail sand, what is the purpose?
Any resource has a day when it is exhausted. Mineral resources have been formed for a long time, but the speed of human mining is accelerating. Most of the raw materials for industrial and consumer products in the world come from mining.
Therefore, the secondary utilization of mineral resources has become a concern of most countries. Tailings just happen to be very important and scarce "second-hand resources", and this large area of tailings resources There are not many places, and China happens to be one of them.
Nowadays, many people only know that the Jiangnan Desert is a tourist scenic spot, but they don't know the true value of these "sands".
The tailings of the Jiangnan Desert not only cover a large area, the is extremely pure, the sand body is round, and the texture is also very fine. is an excellent building material for .
Japan often earthquakes, if the house can be strong, it can also reduce casualties;
Moreover, it also contains rich niobium and tantalum elements, which can withstand high temperatures and are not afraid of corrosion, The raw materials of rockets and missiles are inseparable from these metal elements, and this is what Japan needs most.
Japan proposed that China’s technology is not enough to exploit these resources, and proposed to exchange one catty of rice for one catty of sand in China, and at the same time, is required to independently manage this Jiangnan desert , that is to say, If other resources are found in this desert, such as oil or natural gas, these will also be under their management.
After learning the true purpose of Japan, China decisively rejected the deal.
As a populous country, our country does need enough food, but if Japan succeeds, mankind may face a greater threat than hunger .
my country's technology did have certain bottlenecks at the time, and the minerals in it could not be extracted, but this does not mean that we will stagnate. With the progress of the times, China's refining technology for tailings also changes with each passing day.
2011 glass-ceramic is the successful case of “turning waste into treasure” from tailings, and silicate , pyrite, pyrite Mine and other substances are extracted from the tailings of gold mines, which not only use "industrial waste", but also play a role in protecting the environment.
I have to say that Japan is really smart in many ways, but playing these clever things in front of the Chinese can be said to be shooting yourself in the foot.
If you don’t exchange rice for sand,We may not realize the importance of tail sand so quickly, nor will we realize the value of Jiangnan Desert so quickly .
It is certain that these tailings will bring us huge benefits someday as technology advances.
However, this does not mean that we can squander these existing resources at will. We should cherish the existing resources, make the best use of the second and third-hand resources that can be used, and pay attention to protecting the environment. Able to go longer.
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