Second largest virtual currency 6
according to the notice and announcement issued by the people's Bank of China and other departments, virtual currency is not issued by the monetary authority, does not have legal compensation and mandatory monetary attributes, is not a real currency, does not have the same legal status as currency, cannot and should not be used as currency in the market, and citizens' investment and transaction of virtual currency are not protected by law
response time: January 19, 2021. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html
according to the notice and announcement issued by the people's Bank of China and other departments, virtual currency is not issued by the monetary authority, does not have legal compensation and mandatory monetary attributes, is not a real currency, does not have the same legal status as currency, cannot and should not be used as currency in the market, and citizens' investment and transaction of virtual currency are not protected by law
response time: December 10, 2020. Please refer to the official website of Ping An Bank for the latest business changes
[Ping An Bank I know] want to know more? Come and see "Ping An Bank I know" ~
https://b.pingan.com.cn/paim/iknow/index.html
1. Bitcoin
the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's ideas, open source software was designed and released, and the P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
2, Ethereum
Ethereum (ETH) is a kind of digital token of Ethereum, which is regarded as "bitcoin version 2.0". It adopts the blockchain technology "Ethereum", which is different from bitcoin. Developers need to pay for eth to support the operation of the application. Like other digital currencies, they can be traded on trading platforms
3. Litecoin
litecoin It is a kind of network currency based on "peer-to-peer" technology. It is also an open source software project under MIT / X11 license. It can help users make instant payments to anyone in the world
lightcoin is inspired by bitcoin (BTC) and has the same implementation principle in technology. The creation and transfer of lightcoin is based on an open source encryption protocol and is not managed by any central organization
Dogcoin, which is called dogcoin / dogcoin by some people, was born on December 8, 2013. Based on the crypt algorithm, dogcoin is the second largest virtual currency in the world after bitcoin in terms of the number of usersdigital currency is a global common currency initiated by non-governmental organizations. It does not belong to a certain country, but belongs to all mankind. It has the advantages of fast global transfer. For example, it can remit money from China to the United States in a few seconds, and the cost is low, and the total amount will not be increased at will like legal money, so the total amount is relatively stable
Yuanbao coin is a virtual digital currency similar to bitcoin. The founder of yuanbaocoin is a group of bitcoin enthusiasts and the earliest supporters. However, after seeing the problem of bitcoin, he decided to do his best to develop an electronic currency suitable for Chinese people with the latest technology Ppcoin was pre released by sunny king on August 11, 2012 and officially released on August 19, 2012. Ppcoin's biggest innovation is that its mining method combines POW workload proof and POS equity proof. POS mining method only needs ordinary computers and clients to process transactions and maintain network security, so as to achieve the purpose of energy saving and security Katecoin (KTC) is a virtual P2P digital currency that can be used all over the world. Point to point transmission means a decentralized payment systemin businesses that support Kat coin consumption, you can directly use Kat coin for consumption payment
8, quark money
based on six encryption algorithms (black, BMW, groestl, JH, keccak, skein), nine rounds of super secure hash operation of virtual money, three rounds of application of random hash function, quark money has unique technical specifications
9, infinity coin
infinity coin (IFC) is a new digital currency, which has more circulation advantages than bitcoin, and fills the short board of bitcoin in the field of commercial circulation and promoting commercial operation
one transaction of infinite coin needs three confirmations, each confirmation takes 30 seconds, and the transaction confirmation speed is very fast. Because bitcoin transaction needs 6 confirmations, which takes about 1 hour, and lightcoin transaction takes 15 minutes, infinite coin is used in daily common transactions, which is more practical
Common coin, English name popular coin, or POC, was born on March 7, 2014. The total POC is close to the world population (7.057 billion)POC is a super secure hash operation based on nine rounds of six encryption algorithms (Blake, BMW, groestl, JH, keccak, skein), which is suitable for CPU mining. It generates a block every 15 seconds, with a total of 7.057 billion (close to the world population)
extended data
virtual currency refers to non real currency. Well known virtual currency, such as network company's network currency, Tencent company's Q currency, Q point, Shanda company's voucher, Sina's Micro currency (used for micro games, Sina reading, etc.), chivalrous Yuanbao (used for chivalrous road game), silver pattern (used for bixue Qingtian game)
the popular digital currencies in 2013 are bitcoin, Leyte coin, infinite coin, quark coin, zeta coin, BBQ coin, pennies (Internet), invisible gold bar, red coin and prime currency. At present, hundreds of digital currencies are issued all over the world. Popular in the circle & quot; The legend of "bitcoin, Wright silver, infinite copper, pennies aluminum"
the first category is familiar game currency
the second type is the special currency issued by the portal website or instant messaging service provider, which is used to purchase the services in the website. The most widely used is Tencent's q-coin, which can be used to purchase membership, QQ show and other value-added services
the first two types can be regarded as one, which is only a detailed difference in function. Since the end of 2016, the third type of digital currency has quietly entered our life, which refers to the digitization of currency. Digitization doesn't mean scanning. This is just like digital signature. Digital signature does not mean scanning your signature into a digital image, or using the touchpad to obtain the signature, let alone your signature. Digital currency is often mistaken for virtual currency. But virtual currency refers to non real currency. For example, when you play "Three Kingdoms" (game) or "grand Voyage", you have money, which is virtual, that is, the first and second categories we just described. Of course, the virtual money will also have its real value. For example, if you buy her / his account from another player, you can get all the virtual assets of that player, and then it will be much easier for you to continue playing. Virtual money is not necessarily digital. For example, children play games with pebbles as virtual currency
there are also obvious differences between the transaction rules of digital currency and virtual currency. In most cases, the value of digital currency is higher than that of virtual currency, and it needs more strict transaction rules to carry out transactions
the top three currencies of digital currency are BTC eth EOS
The concept of virtual currency has penetrated into our life with spirit. Not only bitcoin, which was very popular before, but also virtual currency with different forms and concepts in our life. So how many types of virtual currency are there? Have you ever bought virtual currency before mobile phone payment mobile payment in some sense, it can be said to be the payment of virtual currency.
virtual currency has too many conceptual procts, but in our life, we can hardly leave the mobile phone because we can pay mobile phone in some public places, such as bus card, and some group receipts in work and study, which can be paid by WeChat or Alipay. Very fast and convenient to complete. This is one of the reasons why people choose virtual currency to pay{ RRRRR}
virtual investment is graally rising, and we should also be clear eyedat the beginning of the stock speculation in the last century, our country has also begun to have a lot of investment forms. But now we can't invest. The display is operated by virtual currency, but the network is virtual after all. Therefore, while investing in virtual currency, we still need to calculate the risk
Dogcoin has become the second largest virtual currency in the world. Can it surpass bitcoin in the future? I think the price of dogcoin is rising rapidly now, but it does not mean that it has a long-term development trend in the future. the reason why this virtual currency, including bitcoin, can rise rapidly is not simply because the market changes are driven by capital{ RRRRR}
the rise of bitcoin can not be copied. If dogcoin rises again, it is also driven by the capital behind it. However, he thinks it is very difficult to reach the price of bitcoin, because the virtual currency market is not so hot now, and more and more investors realize that there are great risks in the virtual currency, With a cautious attitude towards this market, without so many investors and so many retail investors, whose money do they earn? Naturally, it will not be as hot as before
First measure the length, width and thickness of the iron plate. Multiply to get volume. The unit is centimeter. Multiply that by the density of iron, 7.86 grams per cubic centimeter
For example, the size of iron plate is 500 * 100 * 10cm
is 500 * 100 * 10 * 7.86 = 3930000 g = 3930 kg = 3.93 T
an object on the earth's surface is not only affected by the gravity of the earth, but also by the inertial centrifugal force e to the rotation of the earth. The resultant force of these two forces is called the weight of the object. Traditionally, people think that the gravity of an object is its own weight
extended data:
there are many explanations for body weight. For example, weight is gravity; The weight of an object is the gravity of the earth; Weight is the force of gravity applied to an object. Weight is the force exerted on a vertical suspension or horizontal support when the object is at rest. Some of the above terms emphasize that weight is gravity, gravity is a vector, and its essence is gravity
Some people emphasize that gravity is not a vector, weight is the magnitude of gravity, it is a scalar. There is also a law of measurement for the definition of weight. These different definitions are just different interpretations. There is no right or wrong
under the gravity of the earth, weight and mass are equivalent, but the measurement units are different. The substance with a mass of 1 kg was subjected to 9. The weight of a force of 8 Newtons is called 1kg. It usually replaces weight with a unit of mass, which is implicitly multiplied by the acceleration of gravity. In the past, in China, gold and beams were used as weight units. Pounds, ounces, carats, etc. are also used as units of weight
The commonly used mass units are UG, Mg, G, kg, t, etc