Henan is on the hot search again, and this time it is still major good news! In the area of Weishan City, Zhuzhuang Town, Tongbai County, Henan City, Henan Province, a very large gold mine was found, a total of 16 gold ore bodies were found, and the preliminary estimate was that the gold reserves were 31.55 tons, and there may be more. Many people lament that henan after the torrential rain and flood must have a great blessing in the past, and even netizens said that it was as if they had seen gold all over Henan, and they had to pick up some "gold slag" and "dog head gold" with plastic bags.
However, the joke is a joke, Henan found a very large gold mine or a matter of xida Puben, and here it is still necessary to explain how many extra large gold mines, the current data given is 31.55 tons, the density of gold is 19.32 grams per cubic centimeter, according to the formula: volume is equal to the product of mass and density, the volume of these gold mines is: 1.63 cubic meters.
How much is that? It is equivalent to a square with an edge length of about 1.2 meters. If you only look at its size, you may be able to put down your dining table, but consider its weight, do not underestimate this small cube, can crush your dining table, this weight requires a heavy truck to drag it. So although it is a super large gold mine, so in other words, there is not much to see, henan is full of gold ideas see here you still think so?
Some people say, since it is such a point, why is it still called a super large gold mine, a bit exaggerated, to know that the discovery of extra-large oil fields, coal mines and other such things do not say trucks, trains you can not finish, to gold here so can also be called "extra large", this has to say, the preciousness of gold.
Things are rare and expensive, one of the reasons why gold is expensive is rare, human research on how gold on the earth comes from, the results of the current research can be traced back to the beginning of the birth of the universe, the universe can be understood as an ultra-high-tech metallurgist, in the core of the star to produce gold, and then with the supernova explosion of gold came to the earth, to say that the amount of gold to the earth is not much, someone has calculated that the gold on the earth is about 60 trillion tons, according to the current population of 7 billion per person can also be divided into 9000 tons of gold, Unfortunately, the gold has sunk into the interior of the earth and cannot be mined by humans.
And the gold that exists on the surface of the earth is very rare. The abundance of gold in the shallow layer of the earth's crust is only 0.0031ppm, many people have no concept of abundance, abundance mainly refers to the average content of elements in the earth's crust, the abundance of iron is 50500ppm, the abundance of silver is 0.08ppm, there is no harm without comparison, through the abundance can be seen that the gold that humans on the earth can mine and utilize is really pitiful, according to the data released by the World Gold Council, human beings have mined a total of 170,000 tons of gold so far, and it is necessary to use three and a half 50 meters × 25 meters × The 2-meter Olympic-size swimming pool can hold this gold.
Today, it is becoming increasingly difficult to mine gold, and even previously unattractive low-reserve deposits have been mined. What is even more unexpected is that the most gold on the surface of the earth is the ocean, about 10 billion tons of gold, but unfortunately, human beings have not been able to extract gold from it, which is really "looking at the ocean and sighing".
In the concept of ordinary people, gold is mainly used to make various jewelry, and we do not know how widely gold is used.
Gold has super ductility, calcinability, 50 grams of gold with a hammer can be hammered into a thickness of about 0.1 microns, an area of about 25 square meters of gold leaf; 1 gram of gold can be pulled into 66 kilometers long, less than 1 micron diameter of gold wire; 600 grams of gold can be stretched around the earth; this characteristic of gold in ancient times has been used to make jewelry, because of its preciousness, gold jewelry is generally used for emperors or rich people's homes, is a symbol of power and wealth, and to this day gold jewelry is still loved by people.
Not only that gold also has an important property is that the chemical stability is very high, China's aging "real gold is not afraid of fire refining" said that this is it, gold is not easy to have chemical reactions with other substances do not have to worry about its oxidation discoloration, even if the high temperature forging is still the same, this property also makes gold become the ancient world's common currency, even now, gold is still one of the wealth sought after by people.
With the development of society, the special physical and chemical properties of gold have made it in short supply in the electronics industry, modern communications, and aerospace industry.
Gold high temperature resistance, corrosion resistance and extremely high conductivity, gold in the aerospace prominence, such as in the fighter cabin of the shielding glass plated with a layer of gold, not only can prevent the erosion of wind and sun, but also do not affect the pilot's career; at the same time, some of the fighter's equipment will also be gilded, in addition to improving its conductivity can also reduce the possibility of stealth fighters due to electromagnetic interference exposure; in the spacesuit mask plating a layer of gold, can resist the radiation in the universe, more parts of the spacecraft equipment is more dependent on gold, Since they need to run for a long time, and they cannot be easily lubricated, maintained and repaired, gold can greatly reduce their failure rate.
Its high thermal and electrical conductivity makes gold the most ideal electroplating material, and there is a saying in the field of electronic design: the use of gold to create the ultimate performance of chips. For example, the RF MEMS switch released by ADI brings the excellent metal properties of gold to the extreme in the application of chips, which is called the existence of anti-heaven: precision DC performance, 1 billion switching life.
Today's advanced modern electronic devices often contain only a small amount of gold. These may include: telephones, watches, calculators, personal digital assistants, medical precision instruments, global positioning system (GPS) units and other small electronic devices, the rapid development of the modern electronics industry, the increasing miniaturization of electronic products, the amount of gold used per unit will be small, and it will not pose a threat to the cost of products. Therefore, more and more electronic components can use gold as a raw material.
The value of gold in medicinal and edible use is also gradually known, some people are poisoned by TV dramas, "swallowing gold suicide" wonder how gold still has medicinal and edible value? This has to explain that the "suicide by swallowing gold" is not actually because of the cause of gold that causes people to die. In fact, ancient gold was often refined impure and contained a large number of other heavy metals, and the suicide of swallowing gold was mostly caused by heavy metal poisoning.
As early as ancient times, Chinese medicine research showed that "gold" has the effect of delaying aging, and now many high-end cosmetics are advertised to contain gold ingredients, which shows its value.
In recent years, the rise of gold porcelain teeth, is one of the most popular porcelain teeth, dental demand for gold is rising year by year; for eating gold, of course, not the imagination of the big feast, after all, gold is also a heavy metal, more is still harmful to the human body, the United States New York City has launched a $25,000 chocolate sundae ice cream, which is mixed with 5 grams of edible 23K gold.
The application of gold in scientific development will become more and more widespread with the development of technology, but its rarity and difficulty in development make people have to cherish and find its alternatives, and hope that there will be new breakthroughs in mining technology in the future, so that gold that is dormant in the depths of the earth can be used by us.