Bits equals bitcoin

1. From the user's point of view, bitcoin is a mobile application or computer program, which can provide a personal bitcoin wallet with which users can pay and receive bitcoin. This is how bitcoin works for most users

behind the scenes, the entire bitcoin network shares a public ledger called "blockchain.". This general ledger contains every transaction processed, so that the user's computer can verify the validity of each transaction. The authenticity of each transaction is protected by the electronic signature corresponding to the sending address, which enables users to have complete control over the bitcoin transferred out from their own bitcoin address. In addition, anyone can use the computing power of specialized hardware to process transactions and get a bitcoin reward for it. This service is often referred to as "mining."

bitcoin mining has gone through three stages of development. When bitcoin was just born, the price of bitcoin was very low. People just took bitcoin as a game and used their ordinary computers to mine. However, in 2012, with the rise of bitcoin price, people found that the mining speed of graphics cards was fast, so, People began to buy a large number of graphics cards and assemble them for mining, commonly known as "burning graphics cards"; The third stage is the well-known ASIC miner mining. Since Avalon proced the world's first ASIC bitcoin miner, bitcoin mining has been completely subverted, and mining has become a special professional thing.

2.

At present, the price of bitcoin is about 3000 yuan. 1000 bitcoins is 300000 yuan, or 3 million yuan. The following is the quotation of major platforms:

other well-known digital currencies include Wright coin, Ruitai coin, dog coin, Weimeng coin, etc< br />

3. It has nothing to do with the gate of time and space. The burst rate of the task props is a little low. If you want to come out at one time, you can get the upgraded blessing gift bag. There is a chance that fortune hunter potion (account binding) can increase the drop rate of the task items. After I use it, it can be said that it is 100%, and the black dragon breath of erjue is also 100%. Therefore, the blessing gift bag should be left more, However, the probability of liquid medicine is lower than that of experience medicine

4. eighty-three

5. Level 82, achievement task will appear automatically.

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7. Your question is not complete, but also has the stress point, is the whole surface stressed, or a certain section, or self weight.
also has the support point, is it in the middle, or at both ends, or welding at both ends.
and the most important one. What is the pipe thickness? The standards are 4, 5, 6 and 7. Or are you special

8.

Simple calculation of vertical bearing capacity: P = (4 * n * PI ^ 2 * e * I) / [(L / 2) ^ 2]

The calculated compressive stress is the compressive stress proced by the vertical pressure acting on the cross section of the square tube. This is relatively simple, that is, the pressure (in n) divided by the cross-sectional area of the square tube (in M2). As long as the compressive stress is less than the allowable stress of the material

Due to the interaction of pile cap, pile and soil, the bearing capacity and settlement behavior of pile group foundation under vertical load are often significantly different from that of single pile with the same setting method under the same geological conditions, which is called pile group effect. The bearing capacity of pile group foundation is not always equal to the sum of the bearing capacity of each single pile

pile group effect is shown in the following aspects: lateral resistance, end resistance, soil reaction of pile cap, load distribution on pile top, failure mode of pile group, settlement of pile group and its variation with load

extended data:

performance

plasticity

refers to the ability of metal materials to proce plastic deformation (permanent deformation) without damage under load

hardness

hardness is the indicator to measure the degree of hardness and softness of metal materials. At present, the most commonly used method to measure the hardness in proction is the indentation hardness method, which uses a certain geometry of the indenter to press into the surface of the tested metal material under a certain load, and measures its hardness value according to the degree of being pressed

The common methods are Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV)

fatigue

the strength, plasticity and hardness discussed above are indicators of mechanical properties of metals under static load. In fact, many machine parts work under cyclic load, under this condition, the parts will proce fatigue

impact toughness

the load acting on the parts at a great speed is called impact load, and the ability of metal to resist damage under impact load is called impact toughness

strength

strength refers to the resistance of metal materials to failure (excessive plastic deformation or fracture) under static load. Because the load has the form of tension, compression, bending, shear, so the strength is also divided into tensile strength, compressive strength, bending strength, shear strength and so on. There is a certain connection between various strengths, and tensile strength is generally used as the most basic strength indicator