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Due to the extremely dispersed distribution of gold on the earth, the gold in some deposits is difficult to detect even under the most powerful electron microscope, so the exploration and mining of gold has always been a problem for mankind. For a long time, human beings can only rely on physical methods such as sifting sand and panning for gold, which has led to the extremely high price, which has also led to many people dreaming of "growing" gold like growing potatoes. Among the stories of Avanti, there is a "Planting Gold".
The story goes: Avanti "planted gold" in the sand, and the emperor saw it strangely. Under Avanti's witty justification, the emperor believed it was true, was deceived, and handed over the entire box of gold in the imperial treasury to Avanti to "plant".
After succeeding, Avanti took the gold home and distributed it all to the poor. In this fable, it is full of the simple folk ideas of robbing the rich and helping the poor and ridiculing the powerful. After the advent of this fable, "planting gold" has become one of the vivid expressions of ignorance.
Times are different, technology is developing, and allowing gold to grow naturally underground like potatoes is no longer ignorant or fantastical, but the latest technology. Australian scientists have made the dream of "growing gold" a reality through meticulous research. By studying the microstructure of the gold placer surface, they found that there was residual genetic material of bacteria on the gold, and then deduced that the gold nuggets may be crystallized by microorganisms in the soil.
The results of the subsequent experiments were extremely encouraging, as the bacteria planted several meters below the soil continued to absorb the gold scattered in the soil and slowly precipitate, gradually forming gold particles after a few days, thus proving that humans can use microorganisms to "grow" gold in the ground. Due to the amazing fertility of microorganisms, the growth of gold grains is also quite rapid. The results of this research have made people think about it.
Perhaps in the near future, gold miners will really say goodbye to roaring miners and gold sifting machines, and become professional "farmers" who fertilize and irrigate the underground "** producers". What was thought to be ignorant at first may later be considered extremely intelligent; What is considered impossible today may become a reality in a few years' time. The first and last two "planting gold" verify the above assertion.
In fact, it is not only "planting gold", there are many similar things. In ancient times, it was believed that flying to the sky was an ethereal and ethereal immortal thing, but this has long become a reality today; During the Qin and Han dynasties, Sanya, Hainan was known as the "end of the earth", but after a certain period of time, people knew that the earth had seven continents and four oceans......This kind of thing will continue to emerge in the future. Therefore, we should have a pair of eyes that encourage innovation in everything we do, so that inventions and discoveries will continue to appear, so that human beings can make new qualitative breakthroughs in the field of science and technology, and let more "gold" become reality.
Of course, we must also have a pair of eyes to criticize falsehood, and everything should be based on genuine scientific evidence, and not let those "pseudoscience" in a gorgeous cloak be blinded.
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Militarily you can come and make guns.
Can be plated on the surface of the gun.
So there's **ak and stuff like that.
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Because of its good conductivity, ductility and chemical properties, gold is suitable for making solution electrodes, integrated circuit wires, circuit interface coatings, miniature electrical components, reactor coatings, gold can also be used as a fixer (chloroauric acid), glass chromogenic agent (strawberry red) and medical filling substrates, and can also be used in spacecraft, spacesuits to shield cosmic rays. Heavy metal vapors such as mercury can be removed from air purifiers using alloy foils containing gold.
Natural large pieces of natural gold (commonly known as dog's head gold) are rare in themselves and are generally used directly for collections. The occurrence states of most gold deposits include fine-grained silver-gold deposits, tellurium gold deposits, copper-gold deposits, quartz vein gold deposits, carbonate vein gold deposits, pyrite fracture gold, pyrite lattice gold, pyrite inclusion gold, arsenite lattice gold, sub-microscopic inclusion gold, organic matter or black shale adsorption gold, ionic gold, etc.
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Rare things can be used as equivalent exchanges, the composition is stable, easy to store, its role in society is not just a metal, its value can already be seen in the process of its refining, and it is inevitable that society will naturally give it the role of exchange. When it is used as a metal, its characteristics are still very good, oxidation resistance, corrosion resistance, stable chemical properties, strong ductility, decorative effect, etc., as a currency small size, stable composition, easy to divide.
As for the issuance of currency, there are many factors to consider, and it has little to do with the amount of gold, but the face value of currency was equal to gold in the past, and now it is not universal.
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**It has the effect of enhancing temperament, the yellow color is luxurious, charming and bright, and the jewelry of **material can add a luxurious and charming temperament to itself. In addition, ** is a very precious metal, and its ** overall is on the rise, so ** is also often used for collection value.
**It is often made into jewelry to wear on the body, and when **jewelry is usually worn, the jewelry can constantly rub against **, and the friction is also a physical massage for the local **.
From ancient times to the present, gold is a representative of glory and wealth, so wearing ** jewelry will also make people look aristocratic. The antioxidant effect of gold, for women, has a certain anti-aging effect, which can reduce the appearance of wrinkles on the face**. This is also one of the benefits of wearing ** jewelry.
Among the many ornaments, gold occupies an irreplaceable place, wearing gold not only sets off people's elegant aura, but also helps to stabilize manic thoughts. The benefits of gold are reflected in the benefit of wound repair, which is mainly for ear studs, everyone thinks that raising ear piercings will prevent ear piercings from becoming inflamed and heal faster.
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Of course, it can be used as currency, it can also be minted into gold coins, and various electronic elements are used, such as computers, mobile phones, televisions, aerospace, etc.
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In addition to being used as an ornament, it can also be used as a currency, and its main use has gradually changed from an important reserve asset to a metal raw material for the production of jewelry, or to improve the country's balance of payments, or to suppress the international gold price.
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Not as good as scrap iron. For example, 30 years ago, you bought 1 house, bought 1 ton of scrap iron, and now you sell it, how much do you gain? Buy 1 ton **, now sell it, how much do you get?
Not as good as scrap iron. Gold can't outrun inflation.
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The greatest use of gold is that it can be used to exchange for goods, that is, it can be used to buy things. It can also be used as decorations.
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For the Chinese, it only plays the role of decoration.
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The difference between gold is as follows:
1. Pure gold: Pure gold generally refers to the content of ** between, and our common jewelry such as **necklace is pure gold.
2. Color gold: also known as "secondary gold" and "tide gold", which refers to gold with low fineness. Due to the different content of other metals, the high color is up to 99, and the low color is only 30.
3. Mixed color gold: It refers to the fact that in addition to containing copper, zinc, lead, iron and other metals. According to the different types and quantities of metals contained, it can be divided into small mixed gold, large mixed gold, bronze large mixed gold, leaded large mixed gold, etc.
4. K gold: refers to the silver and copper in a certain proportion, according to the formula of pure gold is 24k. Generally speaking, the greater the proportion of K gold in silver, the greener the color; The proportion of copper is large, the color is purple red, which is generally ** ornaments, such as a gold ring is 20k, it means that the ** content is 20 24 100.
Benefits of Investing**:
For decades, inflation has been rampant, and most countries have been plagued by this problem. The value of money is depreciating, the purchasing power of money is decreasing, and money is becoming worthless.
In some extreme cases, the currency inflation of the country is severe, and the banknotes will become like waste paper. Gold prices will rise with inflation, that is, they offset the loss of inflation, ensuring that investors' assets will not be eroded by inflation. <>
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According to historical records, ingot gold is divided into one tael, two taels, and ten taels. In the old system, one city jin was equal to sixteen taels, and one pound was equivalent to a gram. Then one ingot of gold, one tael is equal to grams, two taels is equal to grams, and ten taels is equal to grams.
Ingot is a measure word, and an ingot of gold refers to a piece of gold, and the size and weight of gold are also unequal. Gold generally refers to **, which is a soft, golden-yellow, corrosion-resistant ***. ** is one of the rarest, more precious and most highly valued metals.
** It is not only a special currency for reserves and investments, but also an important material for the jewelry industry, electronics industry, modern communications, aerospace industry and other sectors.
The history of gold
Before the 19th century, the level of productivity of human society was very low, and some people believed that in the thousands of years of history before the 19th century, human beings produced less than 10,000 tons in total, such as only 200 tons in 100 years in the 18th century.
Due to the discovery of a series of ** resources in the 19th century, ** production has been greatly increased since then, especially in the second half of the 19th century in the 50 years, ** production exceeded the total of the previous 5000 years. In 2013, the world's total production was around 2,770 tonnes.
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1. Classification.
There are two main categories of jewelry made of ** material: pure gold jewelry and K gold jewelry.
Pure gold jewelry, also known as pure gold jewelry. Gold is not enough, and the purest ** can only be reached, which is the "reagent gold" specially used as a standard reagent. The content of pure gold jewelry in the jewelry store is actually 99%.
The former is called "Erjiu Gold" and the latter is called "Forty-Nine Gold".
K gold refers to the addition of a certain proportion of silver, copper, zinc and other metals to the ** to increase its strength and toughness. The "K" in karatgold is an abbreviation for "karat". K gold is calculated by dividing the highest pure gold into 24k, and the gold content of each k is per k in the early days of the founding of the People's Republic of China.
There are 24K, 22K, 20K, 18K, 14K, 12K, 9K, and the common ones are 18K (75% gold content) and 14K (gold content).
k** is often thought to be pure gold, but the actual gold content is real.
K platinum is the amount of platinum that is.
4. PT999 refers to jewelry containing 99% platinum.
5. PT700** is the ** content of 70%.
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