Where does computing power come from

1. How to use the three technical indicators to understand the rise and fall of bitcoin

coincola coying Cola
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how to use the three technical indicators to understand the rise and fall of bitcoin
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recently, "bitcoin broke through $8000" has been on the hot search. For a while, bitcoin rose, reborn rose sharply, and Ethereum led the rise... A week later, this big play dominated by bitcoin didn't seem to come to an end, and the trading volume was once pushed up to 100 billion US dollars

in the investment world, "madness" and "fear" coexist. Today's "madness" stems from last year's long-term "fear". However, this time, coincola Cola Research Institute tracks and analyzes the technical indicators behind the rising market, and deconstructs the "passion" of the market with the "rationality" of data< (1) mining and bitcoin price

start with the relationship between mining and bitcoin. The core technology of bitcoin is "blockchain", which is connected by blocks. Each block corresponds to a bill. All transaction information and transfer records of bitcoin are recorded on the blockchain. Every other point in time, the bitcoin system will generate a random code on the system node. Due to distributed accounting, all computers on the Internet can search for the code. Whoever finds the code will generate a block and then get bitcoin. This process is mining. Calculating this random code requires a lot of GPU operations, so miners need to use mining machines with massive graphics cards to make profits

1. Bitcoin computing power: starting to pick up

remarks: June 2018-may 2019 bitcoin hash value

data source: bitcoin visual, coincola Research Institute

the above figure shows the bitcoin hash value. The hash value of the bitcoin network represents the computing power of the blockchain. The growth of computing power means that miners increase mining investment or increase the number of miners. Since the second half of 2018, the hash value has recovered from falling back to picking up, from 32eh / s at the end of the year to 50eh / s now, and the recent growth trend is remarkable. The continuous growth of bitcoin hash value (representing computing power) indicates that the market is optimistic about the future of bitcoin

2. Mining difficulty: stepped up

remarks: bitcoin difficulty from June 2018 to may 2019

data source: bitcoin visual, coincola Research Institute

the figure above shows bitcoin difficulty. Since 2019, the difficulty of bitcoin mining has increased in a step-by-step manner, from the low 5T to the current 7T. It can be seen that the rapid rise of bitcoin in this round has reced mining costs and increased market entry personnel. The increasing difficulty of mining means that there are profit opportunities in cryptocurrency market, and the market is generally optimistic< (2) the number of active addresses and transactions on the chain are important indicators reflecting the activity of cryptocurrency, which are highly correlated with the price of cryptocurrency

1. The number of active addresses on the bitcoin chain: a straight line rise

remarks: the number of active addresses on the bitcoin chain from June 2018 to may 2019

data source: coinmetrics, coincola Research Institute

active addresses refer to the addresses where transactions have taken place every day, that is, how many independent addresses conct transfer transactions on the chain every day. Since 2019, the number of active addresses on the bitcoin chain has been rising, especially in recent years. From 540.60143k in January to 832.592k now. It shows that the rapid growth of active users of cryptocurrency is a very positive signal for the market

2. The number of transactions on the bitcoin chain: continued to rise

remarks: the number of transactions on the bitcoin chain from June 2018 to may 2019

data source: bitinfo charts, coincola Research Institute

since 2019, the number of transactions on the bitcoin chain has continued to rise, from 235k in early 2019 to 374k now. Moreover, since April and may, after two rounds of sharp rise in the price of bitcoin, the number of transactions on the chain has remained at a high level, even showing signs of a short-term surge< (3) lightning network and bitcoin price

in essence, lightning network adds a layer to the basic layer of bitcoin blockchain in order to make the transaction fast and cheap. With the existence of lightning network, users can remit money to each other at any time and pay very little. Lightning network represents not only the technical level of bitcoin, but also the important basis of bitcoin value

1. Lightning network nodes: rapid growth

remarks: bitcoin lightning network nodes from January 2018 to may 2019

data source: bitinfo charts, coincola Research Institute

the test version of lightning network started on the bitcoin main network on March 15, 2018. The number of lightning network nodes was only 64 at the beginning of 2018 and increased to 2329 at the end of 2018. Since 2019, the number of lightning network nodes has increased rapidly, and now it has reached 4289. In less than half a year, the number of nodes has doubled. The continuous expansion of nodes indicates the continuous upgrading and development of bitcoin lightning network technology, which is an important indicator of bitcoin price

2. Lightning network capacity: speed up

remarks: bitcoin lightning network capacity from January 2018 to may 2019

data source: bitcoin visual, coincola Research Institute

the data above shows that as of May 15, 2019, bitcoin lightning network capacity has increased to 1039 BTC, equivalent to 833usd, while at the beginning of 2019, it is only 504btc, Lightning network capacity doubled, and the growth rate accelerated. This means that the expansion of bitcoin has been well solved in lightning network technology, which will help keep the payment channel active and effectively support the functional application of bitcoin

the performance of mining, chain trading and lightning network is closely related to the price of bitcoin. On the one hand, the rise of bitcoin price acts as a catalyst to stimulate its performance in mining, chain and lightning network; On the other hand, mining, chain trading and lightning network are the important cornerstone of bitcoin price trend and the important basis of bitcoin price expectation<

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3. The official introction is from the global large-scale modern physical mines, and access to rrmine (Renren mine) platform through the global top 10 mines. It's a very international platform

4. In view of the above problems, there are three points worth pondering: first, why can't Chinese enterprises carry out the rule of law as effectively as foreign enterprises? Second, why do Chinese enterprises have to learn the rule of law like foreign enterprises? Third, is the success or failure of an enterprise important in theory or effect? If an enterprise boss blindly learns to imitate other people's enterprise management mode and ignores the enterprise's own growth environment, then your enterprise management will go into the wrong area
Why do small enterprises need law and large enterprises need law? Because enterprises need high human cost to improve, supervise and implement the management system. And the department work of small enterprises is not saturated, so the management can not proce benefits, so the boss is unable to support the human cost. If there are too many managers in an enterprise, not only the boss will not make money, but also the enterprise will be in debt. Basically, because the management has the final say, the rule of law management is not effective. For example, foreign employees can leave work without asking about the company. Is Chinese enterprises OK? A lot of boss's private affairs have become employees' work. After work in the evening, maybe the boss will call you back to work overtime. Can the staff not go? Can the boss stop calling? No, because the enterprise is too small, there are too many things, and it's too urgent. The boss is busy, but who doesn't he call you? This is China's national conditions. Foreign employees can shut down after work. Chinese employees can try to shut down. Maybe they will ask you to pack and leave the next day. Therefore, Chinese enterprises should not blindly learn from foreign enterprise management mode, because you are in China, not in foreign countries
Why do small businesses need to be governed by people? Because most small business owners can't afford to pay high wages, most of the talents they recruit are employees who are attracted by their own human relations. People help the boss to work regardless of pay for their emotional relationship. If the boss controls everything and doesn't trust the employees, who else will want to work with you. Therefore, the success of small businesses basically depends on the boss's personality charm in the leaders and influence people, rather than on the system in the managers. Although this kind of management method is unscientific, it is efficient. As a start-up enterprise, the effect is more important than the truth, so the little boss must not superstition what too deep enterprise management, suitable is the best
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5. F is the load force of the oil cylinder you need. In other words, the thrust of the oil cylinder you need depends on your pressure and the size of the oil cylinder

6. Darcy's law of seepage flow
in a certain period of time t, the seepage flow Q of water flowing through the sand is directly proportional to the water level difference ⊿ h between the water section A and the piezometers at both ends of the soil, and inversely proportional to the distance L between the piezometers of the soil, q = q / T = k ⊿ HA / L = Kai, v = q / a = Ki, q is the seepage flow per unit time, V is the seepage velocity, I is the hydraulic gradient, and K is the seepage coefficient of the graph. When the velocity and acceleration of water are very small, the inertial force proced by water is far less than the frictional resistance proced by liquid viscosity. At this time, the viscous force is dominant, and the water movement is laminar, and the seepage obeys Darcy's law; When the velocity of water reaches a certain degree and the inertial force is dominant, Darcy's law is no longer applicable because the inertial force is proportional to the square of the velocity. When re is less than 10, the seepage obeys Darcy's law. Darcy experiment editor's paragraph (steady flow) in the foundation of hydrogeology, we did this experiment. Let's review: this experiment was concted by Henry Darcy, a French hydraulic engineer, in a cylindrical cylinder with homogeneous sand filter material (Fig. 1-2-1). In l856, it was found that the seepage velocity is proportional to the hydraulic gradient, It is called Darcy's law. Its form is Darcy experiment
Darcy experiment
where q is seepage flow rate; A is the area of seepage section; H1 and H2 are the piezometric head values on sections 1 and 2; L is the distance between section 1 and section 2; J is the hydraulic gradient, the seepage flow in the cylinder belongs to one-dimensional flow of uniform medium, and the hydraulic gradient of each point in the seepage section is equal; K is the proportional coefficient, which is called the permeability coefficient of sand (also known as hydraulic conctivity coefficient). Related links
I don't know where the book came from.

7. Time and space are indeed distorted by objects, so there is a tendency between objects to be close to each other. This tendency can be measured by a quantitative thing, that is, gravity. The formula has been proved correct by practice. When you talk about the effect, you should analyze it in combination with your calculation. If you consider the change of light path, Newton's formula will not work.

8. It has been explained in the theory of relativity that gravity is not a force in essence, but an inherent property of an object (that is, it will distort the space around it), and the larger the mass, the more obvious the distortion, and even can deflect the light (gravitational lens).

9. You're wrong. First of all, you can't use the kinetic energy theorem in water, because there's also water resistance, and it's also related to the density problem, when the density of the object and the density of water & lt; The deeper the water is, the higher the pressure is, the higher the density will be; When it's the same, it floats

10. First calculate the crankshaft torque, and then according to the torque = force × Arm, crankshaft wheelbase is arm, torque divided by arm is slider force.