Gold chain mining
In 2009, bencong invented bitcoin, and set that there are only 21 million bitcoins. By participating in the proction of blocks and providing proof of work (POW), he can get the reward of bitcoin network. This process is mining
the concept of "mining" comes from the existing concepts in our real economic life, such as gold mining and silver mining. Because minerals are valuable, it drives people to pay labor to dig
another important point of bitcoin mining is that the miners who participate in mining recognize the value of bitcoin, and some of them are willing to spend money in the bitcoin market. Therefore, the mining of bitcoin is meaningful
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currency characteristics of bitcoin
1, decentralized
bitcoin is the first distributed virtual currency, and the whole network is composed of users without central bank. Decentralization is the guarantee of bitcoin's security and freedom
2, bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin
3, exclusive ownership
controlling bitcoin requires a private key, which can be stored in any storage medium in isolation. No one can get it except the user himself
4, low transaction cost
bitcoin can be remitted free of charge, but in the end, about 1 bitfen transaction fee will be charged for each transaction to ensure faster transaction execution
5, no hidden cost
as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay
6, cross platform mining
users can explore the computing power of different hardware on many platforms
1、 Deng Yaping is a beautiful and talented girl. She was admitted to university at the age of 15; He became a university teacher at the age of 19 and was admitted to the graate class of the Chinese Academy of Sciences at the age of 22; At the age of 24, he taught graate students in the Chinese Academy of Sciences. Then she fell in love, married and had children. Everything went smoothly, with flowers and applause everywhere. However, when she was 29 years old, god suddenly closed the door to happiness and pushed her into the dark abyss. Her optic nerve was damaged and she was blind. Along with the light, she lost her husband and children
She wants to learn Braille and go back to her field of knowledge. But this year, she was 30 years old. Of course, a 30-year-old woman can't go to school for the blind. So she had to teach herself. She began to read Braille. Of course, she "looks" with her fingers. She could only touch with her fingers instead of her eyes. The first English word she touched was Chinese cabbage, and the letter was c-a-b-b-a-g-e. she touched the seven English letters with her hands and feet for an hour, but she still didn't understand that the word was "Chinese cabbage". When her father told her the answer, she cried. She wept for her clumsiness. She is an English professor at the Chinese Academy of Sciences. She doesn't know the English word "Chinese cabbage". Before that, she could read everything at a glance! She didn't believe that she was tripped over by a cabbage. She wants to live, she wants to stand up, she wants to be a Chinese cabbage that can fly and soar in the sky of knowledge again. She started her own struggle. She locked herself in the room, practicing over and over again, touching words over and over again, memorizing them over and over again. Then she recited what she had learned to her father. Once, when listening to her recitation, my father found that the blind words were full of red blood. When she finished reciting, her father took her hand and found that her fingers were worn out. Her father held her hands in his own and could not help crying. The father said, "daughter, we won't learn. Dad has a salary, and he can support you all his life. " She didn't cry. Instead, she comforted her father with a smile and said, "Dad, you must believe in your daughter. I can do it!" One night, she sneaked out of the house by herself. Father is very anxious, looking around. Finally, her father found her in the classroom where she worked. The students are out of school. The light in the classroom has gone out. She stood alone on the platform, repeatedly measuring the blackboard with her hands. She finally returned to the podium. Everything is the same as before, so that after two weeks of class, the students don't know that their teacher is blind. Finally, some students found out that she was walking in the campus with a blind stick. Only then did they know her misfortune and her hard work in order to have a good class. The students were moved to cry, but she laughed. She told the story of the struggle of a Chinese cabbage with a smile, and encouraged the students to cherish the time Her name is Yang Jia. After learning Braille, Yang Jia used computer Braille software and set foot on the fast track of her career. As a blind person, she was admitted to the Kennedy School of government, Harvard University, USA, majoring in public administration, and received a Harvard MPa degree. Now, Yang Jia is vice chairman of the UN Committee on the rights of the disabled, member of the 11th CPPCC National Committee and vice chairman of the China Association for the blindAug, also known as gold chain, is a native digital encryption token officially issued by Aug. It belongs to virtual currency
in the first stage, it will be generated based on the smart contract in Ethereum, and in the second stage, it will be generated based on its own public chain, which will be used as the only basic chain of the public chain of Aug to calculate, trade and perform the smart contract. A total of 2 billion pieces of gold chain were issued in the world, and 100 million pieces of gold chain were privately offered in the first phase
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A currency pair is a foreign exchange exchange exchange rate composed of two currencies, which is represented by two ISO codes plus a separator, such as GBP / USD. The first code represents "basic currency", The other is "secondary currency
exchange rate changes rapidly. The supply and demand of the market determines the value of money. In the foreign exchange market, the value of one currency is expressed by another currency. In a currency pair, the first currency is called "base currency", and the second currency is called "valuation currency" or "relative currency"
when you trade currency, you buy the base currency and sell the valuation currency. The exchange rate tells the buyer how much it costs to buy a unit of base currency. The order of currency pairs is usually the same, which is a common practice in the instry
for example, currency pair USD / JPY (USD is the base currency and JPY is the valuation currency). The order of currency pairs you see will not change. So, whether you buy or sell depends on the direction of the transaction. For example: USD / JPY - you can buy JPY with USD, or you can buy USD with JPY
the general purity of pure platinum jewelry is 95%, while the purity of 18K gold is only 75%. Any metal can not be completely pure, there are impurities, doped with other metals. Platinum has almost no impurities and high purity, so it will not fade or change color, and can still keep its luster in the course of time. The pure white luster of platinum can reflect the real light of diamond
rare platinum is 35 times rarer than gold. In the world, it can only be mined in very few places, mainly in South Africa and Russia, as well as a few areas in Zimbabwe, Canada and South America. Every year, only 88 tons of platinum are made into ornaments, while 2700 tons of gold are made into ornaments. The quantity of platinum gold ore is less, and the ratio of platinum gold ore to gold ore is 1:10
the density and weight of eternal platinum make it more rable than other jewelry metals. All precious metals leave scratches, and platinum is no exception. However, the scratches on platinum only move the metal and will not rece its volume, while the scratches on gold will bring wear and rece the volume of gold. If there are visible scratches on platinum, a qualified jeweler can regrind it
platinum: a mixture of gold (AU) and a small amount of other metals. The highest purity of platinum available on the market is 75%. It is made of 75% gold plus 25% silver, nickel, copper and other metals, that is, white K gold. Marked as 18K platinum, 750 platinum, 750g, etc
the first link: the chain of gold; Limited time , team players need to complete and pass in 30 minutes. After defeating Xiaoguai and two boss brothers Niuqu and niuqi, big boss Wang Yan will appear. If the player can successfully pass the first link, he will get an important "letter" from NPC, which is a necessary prop to enter the next link
the second ring: xuanfozhu“ "Lead the magic stone" is an important prop to break through this ring, which is divided into five different properties: wind, flame, poison, mystery and earth. Different "leading stones" need to be used in the right place to successfully lead out the corresponding boss of Warcraft. If you defeat the boss, you will drop the next "leading stones". In this way, after killing 5 bosses with different attributes, you can pass the customs. If you choose the wrong place to use the "magic stone", not only the boss will not appear, but also the existing "magic stone" will disappear, leading to the failure of the task. After completing this level, the player can get the important certificate "xuanfo pearl"
the third ring: the land of lava; The last part of the rule is relatively simple, the player's goal is only one - to kill boss fire demon! Just like the old Third Ring Road, just bring it in and kill it alone
this can be exchanged for 76, 86, 96 sets if you drop xuanhaoyu
the ancient treasure chest is a treasure hunting activity, which is basically the same as brush chess. The time is 11:30 ~ 14:30, 19:30 ~ 22:00. When the player's level is higher than level 75, mental skill is higher than level 45, and more than 3 people form a team. After entering the , 4 gold and silver boxes appear each time. If they can't be eliminated for a long time (1 minute), they will turn into a treasure box boy (pretty cute) attacking you. The last boss will drop a monster album, and 20 of them can be exchanged for new fashions. The experience of this is higher than that of chess, and the difficulty is less. There is no big problem in forming a team of 4 players.
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