If no one digs for bitcoin

1.

You can't dig in a day. It takes 2000 years

the global unified computing difficulty of bitcoin is 2621404453 (expected to change in two days). It takes more than 2000 years for a 2.5GHz CPU to work out a bitcoin

in order to make the graphics card fully loaded for a long time, the power consumption will be quite high, and the electricity bill will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned

extended data:

bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system

bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network can get a qualified answer about every 10 minutes. Then bitcoin network will generate a certain amount of bitcoin as block reward to reward the person who gets the answer

when bitcoin was born in 2009, block rewards were 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25

when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. 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 about 21 million

2. We know the process of information computing hash packing: transaction record, time, account number, last hash value. We also know that all calculation and storage need to consume computer resources. In Nakamoto's design, the completion of bookkeeping can be rewarded with bitcoin by the system, which is also the process of issuing bitcoin. Therefore, bookkeeping becomes mining
bookkeeping
because bookkeeping is a reward, each time you can add a certain number of bitcoin for yourself, so everyone is competing for bookkeeping, which of course leads to a problem: when there is inconsistency in bookkeeping, the system introces workload proof to solve the problem, and the rules are as follows:
1. In a period of time, only one person can succeed in bookkeeping
2. Obtain the unique bookkeeping right by solving the cryptography problem
3. Other nodes the bookkeeping results
but before the workload proof, The accounting node will do the following preparatory work:
1. Collect the original transaction information that has not been recorded in the broadcast
2. Check whether the payment address in each transaction information has enough balance
3. Verify whether the transaction has the correct signature
4. Package and record the verified transaction information
5. Add a reward transaction: add 12.5 to your address Bitcoin
if you succeed in competing for bookkeeping rights, you can get a reward of 12.5 bitcoin
workload proof
the hash value of the previous block and the current account page information will be hashed together as the original information in each bookkeeping. In order to ensure that only one person can keep accounts around 10 minutes, we have to improve the difficulty of keeping accounts. The results of hash must start with several zeros. In order to satisfy the condition, hash is to introce a random number variable
denoted by pseudo code:
1. Hash (last hash value, transaction record set) = 456635bcd
2. Hash (last hash value, transaction record set, random number) = 0000afd635bcd
if you change part of the original information of hash, the hash value will also change continuously. Therefore, when you run hash, the value of random number will change continuously, A random number can always be found so that the result of hash starts with several zeros. The node that finds the random number first obtains the unique bookkeeping right
verification
after the node successfully finds the hash value, it will broadcast and package the block to the whole network immediately, and the node of the network will verify it after receiving the broadcast. If the verification is passed, it indicates that a node has successfully decrypted, it will not compete for the current block, but will choose to accept the block and record it in its own account book for the next round of competitive guessing. Only the fastest decrypted block in the network will be added to the ledger, and other nodes will to ensure the uniqueness of the whole ledger
If a node has cheating behavior, it will cause the node of the network to fail the verification, give up its packaged block directly, and cannot be recorded in the general ledger, then the consumption cost of the cheating node will be in vain. Therefore, miners consciously abide by the consensus protocol of bitcoin system, and ensure the security of the whole system
it's like you go to the construction site to move bricks. After moving bricks for one day, the contractor asks you how can you prove that you move bricks for one day?

3.

Most of them have numbers and letters representing the chipset of the motherboard, while some numbers and letters are the numbers of the manufacturers themselves,

motherboard, also known as motherboard, is installed in the main computer box, which is one of the most basic and important parts of the computer and plays an important role in the whole computer system. The stability of the hardware system is determined by the manufacturing quality of the motherboard. Motherboard is closely related to CPU. Every major upgrade of CPU will inevitably lead to the replacement of motherboard

motherboard is the core of computer hardware system, and it is also the largest printed circuit board in the mainframe. The main function of the motherboard is to transmit various electronic signals, and some chips are also responsible for the preliminary processing of some peripheral data. Every part of the computer host is connected through the motherboard. When the computer is in normal operation, the control of system memory, storage devices and other I / O devices must be completed through the motherboard

4. In theory, at the last moment of bolt tightening, the stress on the bolt reaches the allowable strength of the bolt (determined by the strength level of the bolt (e.g. grade 8.8, when the tensile stress of the bolt is 800N / mm2). The force on the bolt can be calculated according to the diameter of the bolt. According to the diameter of the bolt (take the pitch diameter of the thread) and the pitch of the bolt, the inclined angle of the bolt is obtained; According to the static friction coefficient between the pressure (i.e. the force acting on the bolt) and the material, the thrust can be obtained. The thrust multiplied by half of the pitch diameter of the thread should be equal to the torque of tightening the bolt. The moment divided by the arm length from the point of action of the force to the center of the bolt is the force required on the wrench. Of course, this is not the preload of the bolt.

5. Yes
however, the probability of dinosaur egg mining is 1%, while the probability of fishing to open treasure chest is 0.16% - 0.18%, and the probability of digging in mountains is 0.8%
scene map of Xinglu Valley story:
the scene map of the game is not particularly large, playing and living in a small village
in the game, players' main activity place is their own ranch, where they can hoe, cut wood and decorate their own ranch. There is no special terrain in the game, almost all flat
in addition, there are some special buildings in the game, in which players can make some transactions or accept tasks.

6. 1. All transactions can't be free of service charge, but the service charge is not given by percentage, so it's quite cheap for block transactions
2. In order to prevent fraud in a transaction, many nodes need to perform operations to verify. In fact, most of these operations are provided by the miners, so the handling charges go to the miners who are mining. Bitcoin will not be reced either

7. Because bitcoin is very difficult, ordinary video card machine has exited. Now, it's the simplest to dig Monroe coin, with low difficulty and low requirement. Ordinary computer can do it http://yiqd.cn/gVTKSf

8. No one mines, no one keeps accounts, and no one keeps accounts in vain. Therefore, there should be a reward mechanism for mining. If the bitcoin price returns to zero one day, the reward will not be worth money, and no one will keep accounts

9. Then it can't be played. The more people play in this mode, the more people fry it, the more playable it is. The flow of ore is also this mode. Of course, the more people participate in ore speculation, the more active the market, the better. Popularity is important.