How many days to upgrade usdt blockchain

1. 1. bitcoin
it is the birthplace of blockchain technology, and the market has confidence in it. It still maintains a stable growth under the adverse situation of major policies. Once it solves the problem of capacity expansion, the price rise can be predicted
2. Ethereum
compared with bitcoin, the advantage of Ethereum is that it has no policy problems. Although the event led to its bifurcation, the establishment of enterprise version Ethereum alliance may solve this problem. Its concept and Prospect of smart contract attract many developers to follow
the essence of community operation is that the majority decides the minority when indivials support eth
3. Zec
compared with bitcoin and Ethereum, the risk of z-coin will be greater, and its value will take a longer time to reflect. But in the long run, the value of anonymity will be one of the values that human beings generally pursue
4. BTS
bitstocks are very powerful and the system is very stable. Decentralized trading, anchoring system and so on. Although the founder bm's brain damage has hurt the community, the value of bitstocks is obviously undervalued. It is a wise choice to hold bitstocks on the cheap.

2. Trade on the platform, sell and exchange for RMB

3. At present, there is no final conclusion. In the past 17 years, it has been stipulated that it is illegal. However, the national laws already have a sense of supervision in this aspect, and some relevant policies and regulations will soon be issued to regulate and regulate the blockchain, which means that there will be legal blockchain in the future.

4. Hello, this is linked to US dollars. One usdt equals one US dollar

5. The following calculation methods can be used:
for example: microcomputer Z_ If the clock frequency of 80cpu is f = 2.5MHz, its clock cycle T = 1 / F = 1 / 2.5MHz = 400 nanoseconds (t is the basic beat of computer operation), and its shortest instruction execution time is 4T = 4 × If 400 ns = 1.6 ns, the operation speed is:
V = 1 / 4T = 1 / 1.6 × 10-6 seconds = 0.625 × 106 times / S = 625000 times / s
another example: Z_ If the clock frequency of 80A is f = 4MHz, the clock cycle T = 1 / F = 1 / 4 × 106hz = 0.25 microseconds
the shortest instruction execution time is 4T = 4 × 25 μ s = 1 μ s
then the operation speed is: v = 1 / 1 microsecond = 1 million times / second
computing speed is an important index of computer performance
commonly referred to as computer operation speed (average operation speed), the abbreviation of average execution speed of single word fixed-point instructions MIPS (million instructions per second), the number of million machine language instructions processed per second
this is a measure of CPU speed
for example, an Intel 80386 computer can process 3 to 5 million machine language instructions per second, that is to say, 80386 is a CPU with 3 to 5 MIPs
MIPS is only a measure of CPU performance
refers to the number of instructions that can be executed per second, which is generally described as "million instructions per second"
microcomputer generally uses dominant frequency to describe the operation speed. The higher the dominant frequency is, the faster the operation speed is
the CPU frequency of a computer, which generally means the main frequency of the CPU, is regarded as the engine of a car
computing speed is equivalent to the performance of this computer, which is regarded as an indicator of how fast a car can run
how fast a car can run has something to do with the road, tires, frame, etc
computing speed is the result of a multi unit cooperation, which is related to cache, data width, instruction structure, etc.
computer running speed, architecture and dominant frequency. The better the architecture optimization, the higher the dominant frequency, the better the performance
the main frequency is limited by architecture, technology and materials
the relationship between them is quite complicated. For example, the dominant frequency of Ben 4 easily exceeds 3GHz and fails to impact 4GHz. However, the highest frequency of Ben 4 is also a slag in front of the next generation of core, which is less than 2GHz. The actual running speed is far from satisfactory
therefore, the main frequency of CPU is not directly related to the speed, but it is basically positively related, that is, the larger the main frequency is, the faster the operation speed is, because the main frequency is the number of beats per second of the clock, just like the heart. The CPU will work only when it is at a high level, so to some extent, the larger the main frequency is, the faster the operation speed is.

6. The time of transferring geek wallet to usdt depends on the time of online packing. If the miner fee is reasonable, it is generally completed in 5-10 minutes; The miner's fee is relatively low, and the online packing time will be relatively long.

7.

The calculation formula of sliding friction is f= μ N, where μ Dynamic friction coefficient, also called sliding friction coefficient, is only related to material and roughness of contact surface, but has nothing to do with contact area; N is the positive pressure.

sliding friction: occurs between two objects that contact each other and slide relatively, The direction of friction is opposite to the direction of relative motion or the trend of relative motion, but not opposite to the direction of relative motion. Friction can be used as power or resistance.

extended data:

friction can be divided into static friction, rolling friction, rolling friction, rolling friction, rolling friction There are three kinds of sliding friction

when one object slides on the surface of another, friction between contact surfaces hinders their relative motion, which is called sliding friction. The sliding friction is related to the roughness of the contact surface and the pressure. The larger the pressure is, the rougher the contact surface is, and the greater the sliding friction is

The methods to increase the favorable friction are: increasing the pressure, increasing the roughness of the contact surface, increasing the pressure, etc. The methods to rece the harmful friction are as follows: 1. Rece the pressure; 2. Make the contact surface smooth; 3. Separate the contact surface from the object; 4. Change sliding into rolling

when an object slides on the surface of another object, it will be hindered by another object, which is called "sliding friction"

the experiment to study the relationship between the sliding friction and which factors: why do we use the spring scale to pull the wood block to do uniform linear motion? This is because the spring scale measures the tension rather than the friction. When the block moves in a straight line at a constant speed, the pulling force in the horizontal direction of the block and the friction between the board and the block are a pair of balance forces

according to the condition of the balance of the two forces, the pull force should be equal to the friction force. So we measure the tension, that is, we measure the friction. A large number of experiments show that the sliding friction is only related to the pressure on the contact surface and the roughness of the contact surface. The greater the pressure, the greater the sliding friction; The rougher the contact surface is, the greater the sliding friction is

the sliding friction is the force that hinders the relative motion of objects in contact with each other, not necessarily the force that hinders the motion of objects. That is to say, friction is not necessarily resistance, it may also be the motive force to make the object move. It should be clear that the object in contact with each other is the reference object to block the "relative motion"“ "Object motion" may refer to other objects. For example: in life, the conveyor belt to the goods from the low to the high, is to rely on the conveyor belt to the goods oblique upward friction

the sliding friction has nothing to do with the speed of the object movement, and has nothing to do with the size of the contact area between objects

in the study of practical problems, in order to simplify, the "idealized" method is often used. For example, if one object is placed on the smooth surface of another object, the "smooth" means that there is no friction between two objects if they move relative to each other

The direction of sliding friction is always along the contact surface and opposite to the relative motion direction of the object

formula: F= μ× FN FN: positive pressure (not necessarily equal to the gravity of the applied object) μ： Dynamic friction coefficient

8.

There is no problem with the monitoring disk for hard disk mining. The monitoring level hard disk is mainly used to store video images in the monitor, and the reading and writing speed is relatively good. It's enough for ordinary miners

but if you want to have better speed, read-write speed and stability, you need to use enterprise hard disk. Because the enterprise hard disk will perform better than the monitoring disk in this aspect, and the enterprise hard disk is not easy to make mistakes in the storage process, so it can rece the profit risk of hard disk mining as far as possible

many hard disk mining machine service providers purchase enterprise disks for assembly. Of course, it's not good to use ordinary hard disks, because both enterprise disks and monitoring disks can operate for 7 * 24 hours. Ordinary hard disks are very easy to be damaged after digging for such a long time

9. Undoubtedly, usdt was born with a halo. The second half of 2017 was a disaster for the coin circle, but it was an opportunity for usdt. With its unique stability advantage, it quickly took on the link between the legal coin and the token, and was recognized by the major exchanges and the majority of leeks, becoming the stable coin recognized by the coin circle. However, with the continuous issuance of usdt, there are more and more doubts about usdt. "Stable currency is not stable" and "coin circle printing machine" have become the new labels of usdt. Coupled with the investigation and supervision of the US government on tether, the trust crisis of usdt is becoming more and more serious. This time, it is reported that CNH has been resisted by many bigwigs in the coin circle, and there are few voices of support. Although usdt faces many doubts, I don't think the current position of usdt in the currency circle will have a great impact in a short period of time, let alone a crash. Unless the U.S. government makes a drastic cut, this is unlikely.

10. A stable digital currency against the US dollar, also known as stable currency
although it is called stable currency, its price is not absolutely constant and the range is relatively small