Dark coin China mine
In 2016, the global ranking of virtual currency is respectively as follows:
< H2 > bitcoin, Leyte, Ecuadorian, reborn, bitstock, doggy, Diablo, futurecoin, diandiancoin and Xingxing < H2 > first place: bitcoinsince its release in 2009, bitcoin has become the most well-known virtual currency. This virtual currency was developed by indivials or organizations under the pseudonym of "Nakamoto Tsung" (whose real identity has always been unknown), and is mainly used by online merchants. However, in recent years, some small physical merchants have begun to accept bitcoin payment. Through complex algorithms and a large number of computing resources, users can obtain bitcoin through "mining". Of course, they can also purchase bitcoin through exchanges or services like bitinstagnt and coinbase. The total amount of bitcoin that can be mined is about 21 million, while the current mining amount has exceeded 11 million. Bitcoin has attracted the attention of Western Union, MoneyGram and paypal. It is reported that these services are evaluating whether users are allowed to use bitcoin on their respective platforms
< H2 > second place: lightcoinlightcoin 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. Lightcoin aims to improve bitcoin. Compared with bitcoin, lightcoin has three significant differences. First, the lightcoin network can process a block every 2.5 minutes (instead of 10 minutes), so it can provide faster transaction confirmation. Second, the lightcoin network is expected to proce 84 million lightcoins, four times the amount of money issued by bitcoin network. Thirdly, the scrypt encryption algorithm first proposed by Colin Percival is used in lightcoin's workload proof algorithm, which makes it easier to mine lightcoin on ordinary computer than bitcoin. Each Leyte coin is divided into 100000000 smaller units, and the third place is defined by eight decimal places: Ecuadorian currency. In December 2014, Ecuador launched the "electronic currency system"
Ecuadorian currency, or EDC, which is a digital currency issued by the Central Bank of the government of Ecuador. In December 2014, the Ecuadorian market was launched, In 2015, the number of Ecuadorian currency members reached 500000, which will be recognized and sought after by investors after launching the European market and Asian market in 2015, and achieve a complete success. It will strongly launch the Chinese market at the end of September 2016, and will issue a limited number of 50 million pieces in China, which has a strong scarcity! This is an international hot topic with a wide range of admirers in the world. Historical currency is a kind of P2P digital code. Ecuadorian currency is not issued by a specific monetary institution. It is generated by a large number of calculations based on a specific algorithm. Ecuadorian currency economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions
decentralized encrypted digital currency has no issuing institution, and it does not belong to any indivial, institution, bank or country, so it cannot be shut down. Ecuadorian coin mining machine is mining 24 hours a day, and the extracted Ecuadorian coin can be traded through the trading platform to obtain profits. Ecuadorian coin mining refers to the scrypt algorithm, The process of collecting and sorting the transaction information that has not been recognized by Ecuadorian currency in the past period of time, broadcasting to all nodes in the whole network, and finally being recognized by all nodes and getting Ecuadorian currency. Mining is the only way to issue new currency, which plays an important role in issuing new currency, maintaining Ecuadorian payment function and ensuring system security
Like bitcoin, XRP is a digital currency based on Mathematics and cryptography. However, unlike bitcoin, XRP has no real purpose. XRP has the main function of bridging currency and ensuring security in ripple system, among which the function of ensuring security is indispensable, This requires that all gateways participating in this protocol must hold a small amount of XRPin theory, gateways don't need to buy many xrps, and their prices are very cheap. One XRP is only 0.4 cent (as of March 14, 2015, its price has risen to about 1 cent). Like bitcoin, the number of xrps can not be "over issued" (the total number is 100 billion), but since a small amount of xrps will be destroyed in each transaction, it means that the number of xrps will graally decrease. If ripple protocol can become the global mainstream payment protocol, the gateway's demand for XRP will be more extensive - the demand is strong but the quantity is decreasing, which will lead to the appreciation of XRP
< H2 > fifth place: bitstocksbitstocks adopt an architecture similar to bitcoin blockchain. In the bitcoin blockchain architecture, each transaction data must be written from the previous transaction data, and new outputs are generated almost at the same time to be used for future transaction data writing. Each stroke can only be used once under certain conditions. Each transaction output contains the balance information of bitcoin, proving that it can be used for future transactions. In order not to proce bitcoin out of nothing, the write value of the transaction must be greater than the output value
bitcoin uses a simple script language to evaluate the situation that the balance is insufficient when the transaction is output; However, most of the transaction output only needs the holder's encrypted signature
< H2 > sixth place: dogcoindogcoin, some people call it "dogcoin", was born on December 8, 2013, based on the scrypt algorithm, is the second largest virtual currency in the world after bitcoin in the number of users [1]. Digital currency is a global currency initiated by non-governmental organizations. It does not belong to a certain country, but belongs to the whole 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, with low cost, and the total amount will not be increased at will like legal money, so the total amount is relatively stable
after the launch of dogcoin system, e to the help of reddit (the doge content on this website overflows horribly), the traffic shows an explosive development. However, in two weeks, dogcoin has launched a special blog and forum, with a market value of 100 million as of June 9, 2015. Because there is no pre dig, dog coin distribution is fair, charity, reward culture is popular, and user development is amazing and rapid. On June 9, 2015, the number of Dog Coin client addresses was 1.6 million, more than five times that of Wright coin; The number of active client addresses is 196000 in bitcoin, 83000 in dogcoin and 11000 in lightcoin; There are more than 150000 foreign Twitter users, 1.7 times of bitcoin and 6 times of lightcoin. Facebook likes are the same as bitcoin, far more than lightcoin [2]. The daily real transaction volume has been ranked in the top three of virtual currency for a long time, which is still not as good as the result obtained before the big platform [3]. The biggest value of the enterprise Internet era is the huge number of users. It took one year for the user base of dogcoin to reach one third of the number of bitcoin users, and the seventh place is lightcoin, which is four times the number of bitcoin users. A special solution is one of the infinite (in fact, bitcoin is finite) solutions that can be obtained from the equations. Every particular solution can solve the equation and is unique[ 8] In the metaphor of RMB, black money is the serial number of RMB. If you know the serial number of a note, you have the note. The process of mining is to constantly seek the special solution of the equation system through huge amount of calculation. The equation system is designed to have only 22 million special solutions, so the upper limit of bitcoin is 22 million[ 8]
to mine the dark coin, you can download the special dark coin calculation tool, register various cooperative mine pool websites, fill the registered user name and password (miner user) into the calculation program, and then click the operation to officially start. After completing the installation of the darkcoin client, you can directly obtain a darkcoin address. When others pay, you only need to post the address to others, and you can pay through the same client. After installing the Black Coin client, it will distribute a private key and a public key. You need to back up your wallet data containing your private key to ensure that your property is not lost. Unfortunately, if the hard disk is completely formatted, the personal dark coin will be completely lost
Calculation formula: ft = {MV
F is the average force, t is the time, M is the mass of the object, V is the velocity, and} is the variation; This formula is understood as that the impact force and its time acting on the object are equal to the change of momentum of the object
impact force refers to the force that appears when objects collide with each other. In the process of collision or striking, the force that suddenly increases and then rapidly disappears between objects is also called impact force or impact force. The characteristic of the impact force is that the action time is very short, but the magnitude can be very large. "
The impact force of this fluid is e to the continuous interaction between the fluid (such as water) and the object, resulting in impact force. The difficulty lies in the selection of research object and research process 
extended data
usually, the solution of this kind of problem should focus on two points:
(1) using the "infinitesimal method" to determine the research object and research process: because the fluid is continuously interacting with the object, we can select a short period of time Δ T to determine the object. As mentioned above: in Δ T time, our research object is actually in the figure Δ Water in part X
what is the quality of this part of water Δ m= ρ S′v Δ T -- because the time is very short, the speed of water rising for a short distance can be regarded as constant; In addition, it should be noted that when the water reaches this position, the cross-sectional area becomes s ′, and s ′ is unknown. Because the water is continuous, combined with the first question,
Δ m= ρ S′v Δ t＝ ρ SVo Δ T
(2) ignoring the gravity of water. When using the micro element method to deal with the problem, the gravity and the impact force can be compared slightly< br />
the fraud of MMM platform has a long history. As early as 20 years ago, it was identified as "one of the largest Ponzi scams in the world"
in February 1994, Sergei mavroji, a Russian, founded MMM stock company with a registered capital of only 100000 rubles (about US $1000 at that time). Mmm has launched advertisements in almost all well-known media in Russia to attract investors with high return on investment. In Russia at that time, millions of people participated in the MMM financial pyramid and were cheated out of tens of billions of dollars
after surviving for three years, mmm project went bankrupt in 1997, and its founder Sergei mavroji was sentenced to four and a half years in prison. Unexpectedly, after he was released from prison in 2007, he went to India, China, South Africa, Indonesia and other countries to cheat foreigners in Russia
bitcoin home and other websites have reported similar virtual money pyramid schemes. You can check the relevant information
in a nutshell, Ponzi scheme means that there is no corporate entity to attract investors with high interest, and later investors pay interest to early investors. For a Ponzi scheme, once there is no new capital inflow, or the subsequent new investment is not enough to pay for the "income" of the predecessors, the Ponzi scheme will explode immediately.