Computing power and computing speed

1.

computing power is a measure of bitcoin network processing power. That is, the speed at which the computer calculates the output of the hash function. Bitcoin networks must perform intensive mathematical and encryption related operations for security purposes. For example, when the network reaches a hash rate of 10th / s, it can perform 10 trillion calculations per second

in the process of getting bitcoin through "mining", we need to find its corresponding solution M. for any 64 bit hash value, there is no fixed algorithm to find its solution M. we can only rely on computer random hash collisions. How many hash collisions can a mining machine do per second is the representative of its "computing power", and the unit is written as hash / s, This is called workload proof mechanism pow

< H2 > extended data

computing power provides a solid foundation for the development of big data, and the explosive growth of big data poses a huge challenge to the existing computing power. With the rapid accumulation of big data in the Internet era and the geometric growth of global data, the existing computing power can no longer meet the demand. According to IDC, 90% of the global information data is generated in recent years. And by 2020, about 40% of the information will be stored by cloud computing service providers, of which 1 / 3 of the data has value

therefore, the development of computing power is imminent, otherwise it will greatly restrict the development and application of artificial intelligence. There is a big gap between China and the advanced level of the world in terms of computing power and algorithm. The core of computing power is the chip. Therefore, it is necessary to increase R & D investment in the field of computing power to narrow or even catch up with the gap with the developed countries in the world

unit of force

1 KH / S = 1000 hashes per second

1 MH / S = 1000000 hashes per second

1 GH / S = 1000000000 hashes per second

1 th / S = 100000000000 hashes per second

1 pH / S = 100000000000 hashes per second

1 eh / S = 100000000000 hashes per second

2. Newton's second law of motion: force = mass × Acceleration, force must know mass and acceleration

3. I think if we only know volume and velocity, we can't find the force. i 'm sorry!

4. Computing power (also known as hash rate) is a measure of bitcoin network processing power. That is, the speed of computing hash function output for computer (CPU). Bitcoin networks must perform intensive mathematical and encryption related operations for security purposes. For example, when the network reaches a hash rate of 10th / s, it can perform 10 trillion calculations per second

in the process of getting bitcoin through "mining", we need to find its corresponding solution M. for any 64 bit hash value, there is no fixed algorithm to find its solution M. we can only rely on the computer's random hash collisions. How many hash collisions can a mining machine do per second is the representative of its "computing power", and the unit is written as hash / s, This is the so-called proof of work mechanism (POW)

recently, bitcoin's network computing power has entered the era of P computing power (1P = 1024t, 1t = 1024g, 1g = 1024m, 1m = 1024k). In the ever-increasing computing power environment, the arrival of P era means that bitcoin has entered a new stage of arms race

computing power is a measure of the total computing power of the unit that generates new blocks under certain network consumption. The single blockchain of each coin varies with the time required to generate a new transaction block.

5. Yes, pay attention to the backup of the wallet. I feel that the cold purse may not be so safe. I usually use the online wallet, which is very good. As for the safety factor, it's guaranteed by the company behind. I think it's reliable. Download your wallet, in case you forget the backup, or the backup is lost, there will be a big problem. It is said that many people have lost money.

6. cd2
fs2you://=

cd1:
fs2you://

7. Just now I tried. You can make a comparison in the project details of BTC or BCH. You can choose different indicators

8. Suppose f = AV ^ 2
when the final uniform motion is f = f
then the thrust f = AV ^ 2 has nothing to do with the mass of the object and the friction coefficient

9. Hello friend, check the hydraulic system for leakage. If there is, the system pressure will not rise, and the workpiece will not be clamped tightly. The leakage is mainly caused by the wear of sealing elements. The solution is to find out the worn sealing elements and replace them with new ones. In addition, the hydraulic oil damp or more impurities will also lead to a drop in system pressure. The treatment method is to filter and dry or replace with new hydraulic oil that meets the requirements. Measure the hydraulic pressure, if it changes, adjust the pressure, because the pressure is the only guarantee to ensure the clamping force. The hydraulic system of metal belt cutting machine generally uses gear pump as the system pressure output. If it is used for a long time, the system pressure will not rise when the unloading in gear pump is large, and the workpiece will not be clamped tightly. In addition to what you have mentioned above, there is another important factor. The spring of the relief valve may become loose after a long time of use. Please check whether the oil seal of the oil cylinder is damaged. Then check the pressure setting and wear of the relief valve, the internal leakage of the directional valve, the internal leakage of the oil pump and the internal leakage of the hydraulic control check valve. I'm glad to serve you. I hope my answer will help you. Thank you for your support and encouragement.

10. Using the formula, gravity is approximately equal to gravity
GMM / R ^ 2 = mg, GM = GR ^ 2
m = density × Volume = density × 4 / 3 * pi * R ^ 3
so G is proportional to R, so the acceleration of gravity is g / 2