Ethereum 107
Quantum: if there is the smallest indivisible basic unit of a physical quantity, then the physical quantity is quantized, and the smallest unit is called quantum. The word "quantum" comes from the Latin word "quantus", which means "how many" and stands for "a considerable amount of a certain substance". It was first proposed by German physicist M. Planck in 1900. He assumed that the radiation energy in the blackbody radiation is discontinuous and can only be taken as an integral multiple of the basic unit of energy, thus well explaining the experimental phenomenon of blackbody radiation
From the point of view of classical mechanics, the concept of energy discontinuity is absolutely not allowed. However, when interpreting this formula, we have to assume that the total energy of these quantum harmonic oscillators is not continuous, that is, the total energy can only be discrete (the view of classical physics is just the opposite). Planck further assumes that the radiation energy absorbed and emitted by a single quantum harmonic oscillator is quantized, which seriously impacts the classical physics. Quantum theory involves the fundamental change of the form and law of motion of matterwhen you calculate the results of a hundred complex formulas, the computer must be fast
however, if it is to analyze a voice or a picture, it is difficult for a computer to surpass human beings.
On June 10, 2018, e to the "network intrusion" of a small trading platform in South Korea, the price of bitcoin fell for three consecutive days, the biggest drop in three months. Since the beginning of this year, the price of bitcoin has dropped by about 50%, which coincides with the massive selling off of cryptocurrency
The concept of 
bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, the open source software and the P2P network on it were designed and released. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
unlike most currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to 21 million
bitcoin can be cashed and converted into the currency of most countries. Users can use bitcoin to buy some virtual items, such as clothes, hats and equipment in online games. As long as someone accepts it, they can also use bitcoin to buy real-life items
bitcoin
opening price
US $10715.1
Ethereum will open at $225.03 on July 22, 2019.
if you are under the South Square of Zhenjiang station, take the underground passage in front of the station, follow the signs to Zhenjiang bus station, take a bus to Yangzhou, 19 yuan, 50 minutes. The last bus is 21:30 and the last one is 20:30.