Qianzujin mining
until she heard fros
In the past 20 years of development, Gengsheng graphics card has gone through a leap of development and innovation, and has become a famous brand in the IT instry and a banner in the field of graphics card
Gengsheng has invested a lot of human and material resources in the R & D department, and a professional R & D team of nearly 100 people has been continuously developing procts closer to the needs of users
Gengsheng's excellent proct design has been repeatedly recommended by professional magazines at home and abroad and has won numerous awards. The R & D goal of Gengsheng is to continuously develop and manufacture high-quality and high-performance display cards superior to the instry; Continuously provide excellent value-added procts to maintain the needs of different markets and different users
at present, operation centers and R & D centers have been set up in North America, Europe and Asia, respectively, and the graphics cards are sold all over the world
as a leading brand in the global graphics card market, Gengsheng's growth has witnessed the development of graphics cards
Gengsheng participates in the global market competition with the overall growth plan, and consumers and partners are regarded as an important part of Gengsheng's business. The future of Gengsheng is the future of graphics card
in 1982, David JOM first proposed the untraceable cryptography network payment system< In 1990, JOM extended his idea to the original cryptology anonymous cash system< In 1998, David published an article on an anonymous and distributed e-cash system, which he named "B-money"
in 2008, a self styled Japanese American engineer, TSUO Nakamoto, published a paper on the e-cash system of digital currency in the mailing list of a cryptography website
on January 31, 2009, Nakamoto created bitcoin, the first digital cryptocurrency in history
by 2013, bitcoin had increased by 460000 times. At the same time, there was a wave of digital currency all over the world, releasing hundreds of digital currencies successively, and forming a digital currency ecological chain with hundreds of billion US dollars of investment
in October 2013, the world's first bitcoin ATM came out in Vancouver, Canada
in early 2014, the U.S. law passed the resolution that bitcoin is the legal property of citizens
on January 1, 2014, after bitcoin, the Internet, network gold, was born
the concept of network gold was put forward by Dr. David of the United States in 1982. With the development of the Internet, after 30 years of continuous invention and improvement by international players such as Zhongben Cong in 2009, it was finally invented by 17 it experts from seven countries headed by former Microsoft engineers on January 1, 2014.
(1) mining without obtaining a mining license shall enter the state planned mining area without authorization Anyone who mines in a mining area of great value to the national economy or within the mining area of another person, or arbitrarily mines a specific type of mineral for which protective mining is prescribed by the state, shall be fined less than 50% of the illegal income< (2) if mining beyond the approved mining area, a fine of less than 30% of the illegal income will be imposed< (3) if mineral resources are sold, leased or transferred in other forms, or mining rights are sold or leased, the seller, the lessor or the transferor shall be fined less than one time of the illegal income< (4) those who illegally use mining rights as collateral shall be fined less than 5000 yuan< (5) those who purchase and sell mineral procts uniformly purchased according to state regulations shall be fined less than one time of their illegal income< (6) those who adopt destructive mining methods to exploit mineral resources, causing serious damage to mineral resources, shall be fined less than 50% of the lost value of mineral resources.
1、 You can bite with your teeth
when you are watching TV, you must have seen such a scene, that is, you can use your teeth to identify the true and false gold. Because the texture of gold is relatively soft, teeth will appear when you bite with your teeth. If there is no teeth, it must be false gold
As the saying goes, "real gold is not afraid of fire", that is to say, real gold is not afraid of high temperature, the melting point of gold is more than 1000 degrees, you can use fire to burn gold, real gold will not change color, if it changes color or melts, it must be fake gold3. Listen to the sound
when knocking on gold, real gold will make a "pop, pop" sound, while fake gold will make a brittle sound, generally a "Dang" sound
The ceramic scratch test method uses unglazed ceramics. If it is a black scratch, it means that the proct is not gold. If it is a gold scratch, it means that the proct is gold This is a simple test, but it is not a sufficient proof to prove whether it is real gold. You can find a strong magnet to testgold is not a magnetic metal. If the proct is attracted by a magnet, it is sufficient to prove that the proct is not gold. But we can't prove that the proct is gold just because it doesn't react to magnets, because there are still many non-magnetic metals
extended information:
notes for wearing gold jewelry:
1. Although gold has a high rability, if you don't know how to cherish jade, scratches or pits will still appear on the surface of gold jewelry, especially for hand ornaments such as rings and bracelets. So remember to get rid of the gold jewelry before carrying out strong activities
2. Italian chemical procts. The natural enemy of gold is chlorine. Repeated exposure to chlorine will weaken the internal structure of gold and eventually lead to fracture. So keep gold jewelry away from chlorine based cleaners, swimming pools and bathtubs
3. The acid, abrasive and other chemical components contained in household cleaning solution will damage the luster of the surface of gold jewelry, so remember to wear rubber gloves when carrying out heavy cleaning work, and it is best to remove them
4, gold jewelry for a long time sweat, st, cosmetics, such as perfume pollution, easy to lose its original luster, so regular cleaning. Wash with mild soapy water or steam at a professional jewelry store. After cleaning and washing, be sure to wipe with a piece of suede or a clean soft cloth to avoid scratching
Proper storage is as important as cleaning. When you don't wear them, put them carefully in the jewelry box - it's better to wrap them with a piece of soft cloth - all kinds of jewelry should be stored separately to avoid entanglement or friction6. Check whether the gold jewelry has cracks or damage at any time, especially the clasp is flexible, safe and reliable; Inlay claw - avoid breaking, bending or loosening to prevent gem from falling off; Earrings and pin back - avoid bending or loosening, as well as the connection of wedding rings, pendants and other long-term hanging accessories
source: Internet - qianzujin