How much is BTB miner 1t

1.

bitcoin is just like the currency in the game, but no one releases bitcoin. Instead, it relies on a specific algorithm to generate , so now people looking for bitcoin also call themselves miners, but they rely on computers to mine

the rise of bitcoin is e to the restructuring of global risk assets , and the widening of investment channels for encrypted assets . Since the beginning of this year, the volatility of securities and foreign exchange markets has intensified, and global investors are looking for safe assets. Traditional safe asset gold is more dependent on the real economy and inflation expectations, Bitcoin is more like a sensitive index, gaining a certain asset hedging advantage

2. This depends on what configuration of bitcoin mining machine you buy. Take Avalon mining machine as an example, avalon2
1t package (10 single-mode groups): the price is 13999 yuan; The price of avalon2 single-mode 100g is 1599 yuan; The price of Avalon 2-generation Miner 2 mole 200g is 2500 yuan. At present, Avalon three generation chips have been released, and Avalon 3 mining machine is about to enter the market.

3. Under the current difficulty, the 1 t miner can dig about 0.0268
BTC per day, which is about 100 yuan RMB. But judging from its current price, it is almost impossible to return the original price. Enter with caution. You can check with Babbitt when you have time.

4.

Mining needs high-end graphics card, mining equipment is the first to eliminate NV graphics card. Mining must be done with graphics cards. The overall structure of mining equipment and ordinary PC machine is different is the number of graphics cards. You can install four or eight through pic extension

after expansion, an expansion shelf needs to be made. To fix the graphics card and other equipment, we need to get some fans on the shelf to cool the graphics card

CPU is not very important. But not lower than i5< br />

5.

First of all, if the home computer is used to calculate bitcoin, even if the configuration is high, it will take several days to dozens of days. It may come out with a string of effective bitcoin (that is, bitcoin), and then it can be traded through the market of circulating bitcoin

special bit code operation requires a lot of graphics resources, so there are so-called mining machines, as shown in the figure below

this is a miner, which is specially used for mining. Such a miner may not be able to dig a bitcoin a day; The price of a mining machine is at least about 20000 RMB, and mining is a very power consuming project. All the graphics cards are running with full load, and the electricity charge will be very high

so don't blindly follow this kind of thing, it's not something that ordinary people can dig up with their home computers

6. In terms of bitcoin, I calculate that it's about 0.13, earning 500 + yuan a day

7.

As of July 24, 2020, the state has not issued any laws to prove that bitcoin mining machine is illegal

bitcoin mining machine is one of the ways to obtain bitcoin. Bitcoin is a kind of network virtual currency proced by open source P2P software

it doesn't rely on the issuance of specific monetary institutions, and it is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction

extended data

the issue and transaction of bitcoin are realized by mining, and it is cast at a certain but slowing rate. Each new block is accompanied by a certain number of new bitcoin from scratch, which is used as a coinbase transaction to reward the miners who find the block

the reward for each block is not fixed. For every 210000 blocks mined, it takes about four years, and the currency issuance rate is reced by 50%. In the first four years of bitcoin's operation, each block created 50 new bitcoins. Each block creates 12.5 new bitcoins. In addition to the block award, the miner will receive a handling fee for all transactions within the block<

source: Internet - bitcoin mining machine

8. The prices of bitcoin mining machines with different performance and computing power are different. Let me give you some prices of mainstream mining machines in the market, hoping to help you:
avalon2 single mode group
(chip frequency 1500mh / s)
￥ 488
100
G
avalon3 single mole
(chip frequency 500mh / s)
￥ 1899
290
G
avalon3
1.2t package
￥ 7444
1200
G

9. This depends on what configuration of bitcoin mining machine you buy. Take Avalon mining machine as an example, avalon21t set (10 single-mode sets): the price is 13999 yuan; The price of avalon2 single-mode 100g is 1599 yuan; The price of Avalon 2-generation Miner 2 mole 200g is 2500 yuan. At present, Avalon three generation chips have been released, and Avalon 3 mining machine is about to enter the market.

10. 1、 The motion of a particle. Uniformly variable speed linear motion 1. Average velocity vplane = s / T (definition) 2. Useful inference vt2-vo2 = 2As 3. Middle time velocity VT / 2 = vplane = (VT + VO) / 2 4. Final velocity VT = VO + at 5. Middle position velocity vs / 2 = [(VO2 + vt2) / 2] 1 / 2 6. Displacement S = vplane t = VT + at2 / 2 = VT / 2T 7. Acceleration a = (VT VO) / T {take VO as positive direction, a and VO are in the same direction (acceleration) a & gt; 0 In reverse, a & lt; 0} 8. Inference for experiment Δ s＝aT2 ｛ Δ 9. Main physical quantity and unit: initial velocity (VO): M / S; Acceleration (a): M / S2; Final velocity (VT): M / S; Time (T) seconds (s); Displacement (s): m; Distance: meters; Speed unit conversion: 1m / S = 3.6km/h. Note: (1) the average velocity is a vector 2) When the velocity of the object is large, the acceleration is not necessarily large 3) A = (VT VO) / T is only a measure, not a determinant 4) Other related contents: particle, displacement and distance, reference frame, time and time [see Volume I P19] / s -- t diagram, V -- t diagram / speed and speed, instantaneous speed [see Volume I p24]. 2) Free falling body motion 1. Initial velocity VO = 0.2. Final velocity VT = GT 3. Falling height h = GT2 / 2 (calculated from VO position downward) 4. Dection vt2 = 2GH note: (1) free falling body motion is a uniformly accelerated linear motion with zero initial velocity and follows the law of uniformly variable speed linear motion 2) A = g = 9.8 m / S2 ≈ 10 m / S2 (the acceleration of gravity is smaller near the equator, and it is smaller in the high mountains than in the plain, and the direction is vertical and downward) 3) 1. Displacement S = vo-gt2 / 2 2. Final velocity VT = VO GT (g = 9.8m / S2 ≈ 10m / S2) 3. Useful inference vt2-vo2 = - 2GS 4. Maximum rising height HM = VO2 / 2g (calculated from the throwing point) 5. Round trip time t = 2VO / g (time from throwing to the original position) Note: (1) whole process processing: it is uniform deceleration linear motion, upward is positive direction, acceleration is negative value 2) Segmented processing: upward for uniform deceleration linear motion, downward for free fall motion, with symmetry 3) The process of ascending and descending is symmetrical, such as velocity equivalence at the same point and reverse direction. 2、 Horizontal velocity: VX = VO 2. Vertical velocity: vy = GT 3. Horizontal displacement: x = VOT 4. Vertical displacement: y = GT2 / 2 5. Movement time: T = (2Y / g) 1 / 2 (usually expressed as (2H / g) 1 / 2) 6. Combined velocity: VT = (VX2 + vy2) 1 / 2 = 1 / 2. Angle between combined velocity direction and horizontal β: tg β＝ Vy / VX = GT / V0 7. Combined displacement: S = (x2 + Y2) 1 / 2, displacement direction and horizontal angle α: tg α＝ Y / x = GT / 2VO 8; Vertical acceleration: ay = g note: (1) the horizontal projectile motion is a curve motion with uniform velocity change, and the acceleration is g, which can be regarded as the combination of horizontal uniform linear motion and vertical free falling motion 2) The movement time is determined by the falling height h (y) and has nothing to do with the horizontal throwing speed 3 θ And β The relationship between them is TG β＝ 2tg α 4) In the horizontal throwing movement, time t is the key to solve the problem 5) When the direction of velocity is not in the same line as the direction of resultant force (acceleration), the object will move in a curve. 2) Linear velocity v = s / T = 2 π R / T 2. Angular velocity ω＝Φ/ t＝2 π/ T＝2 π F 3. Centripetal acceleration a = V2 / r = ω 2r＝(2 π/ T) 2R 4. Centripetal force fcenter = MV2 / r = m ω 2r＝mr(2 π/ T)2＝m ω 5. Period and frequency: T = 1 / F 6. Relationship between angular velocity and linear velocity: v = ω R 7. Relationship between angular velocity and rotational speed ω＝ two π 8. Main physical quantities and units: arc length (s): meter (m); Angle Φ)： Radian (RAD); Frequency (f): Hz; Period (T): second (s); Speed (n): R / S; Radius & # 174;: Meter (m); Linear velocity (V): M / S; Angular velocity ω： rad/s Centripetal acceleration: M / S2. Note: (1) the centripetal force can be provided by a specific force, a resultant force or a component force, and its direction is always perpendicular to the velocity direction and points to the center of the circle 2) The centripetal force is equal to the resultant force of an object in uniform circular motion, and the centripetal force only changes the direction of velocity, not the size of velocity, so the kinetic energy of the object remains unchanged, the centripetal force does not do work, but the momentum changes constantly. 3) Kepler's third law: T2 / R3 = K (= 4) π 2 / GM) {R: orbital radius, t: period, K: constant (independent of the mass of the planet, depends on the mass of the central celestial body)} 2. Law of gravitation: F = gm1m2 / R2 (g = 6.67) × 10-11N• 3. Gravity and acceleration of gravity on celestial bodies: GMM / r2 = mg; G = GM / r2 {R: celestial body radius (m), M: celestial body mass (kg)} 4; ω＝( GM/r3)1/2 T＝2 π( The first (second, third) cosmic velocity V1 = (g earth r earth) 1 / 2 = (GM / R earth) 1 / 2 = 7.9km/s; V2＝11.2km/s V3 = 16.7km/s 6. GMM / (R + H) 2 = M4 π 2 (r earth + H) / T2 {h ≈ 36000km, H: height from the earth's surface, R earth: radius of the earth} note: (1) the centripetal force required for the motion of celestial bodies is provided by universal gravitation, f direction = f 10000 2) The mass density of celestial bodies can be estimated by using the law of universal gravitation 3) The geostationary satellite can only run over the equator, and its cycle is the same as the earth's rotation cycle 4) When the orbit radius becomes smaller, the potential energy becomes smaller, the kinetic energy becomes larger, the velocity becomes larger, and the period becomes smaller 5) The maximum orbit speed and minimum launch speed of the earth satellite are 7.9km/s. 3、 Force (common force, composition and decomposition of force) 1) common force 1. Gravity g = Mg (vertically downward, g = 9.8m/s2 ≈ 10m / S2, the action point is at the center of gravity, which is applicable to the earth's surface) 2. Hooke's law f = KX {direction along the recovery deformation direction, K: stiffness coefficient (n / M), X: deformation variable (m)} 3. Sliding friction f = μ FN {is opposite to the relative motion direction of the object, μ： Friction coefficient, FN: positive pressure (n)} 4. Static friction 0 ≤ F, static ≤ FM (opposite to the relative motion direction of the object, FM is the maximum static friction) 5. Gravitation f = gm1m2 / R2 (g = 6.67 × 10-11N• 6. Electrostatic force F = kq1q2 / R2 (k = 9.0) × 109N• 7. Electric field force F = EQ (E: field strength n / C, Q: electric quantity C, the electric field force of positive charge is the same as the direction of field strength) 8. Ampere force F = bilsin θ θ When l ⊥ B: F = bil, B / / L: F = 0) 9. Lorentz force F = qvbsin θ θ When v ⊥ B: F = QVB, V / / B: F = 0. Note: (1) the stiffness coefficient K is determined by the spring itself 2) Friction coefficient μ It has nothing to do with the pressure and contact area, but is determined by the material characteristics and surface condition of the contact surface 3) FM is slightly larger than that of the control group μ FN, generally regarded as FM ≈ μ FN; ( 4) Other related contents: static friction force (size and direction) [see P8 in Volume I] 5) Symbol and unit of physical quantity B: magnetic inction intensity (T), l: effective length (m), I: current intensity (a), V: velocity of charged particle (M / s), Q: electric quantity of charged particle (charged body) (c) 6) The direction of Ampere force and Lorentz force are determined by left-hand rule. 2) The composition and decomposition of forces 1. The composition of forces on the same line is in the same direction: F = F1 + F2, reverse direction: F = F1-F2 (F1 & gt; F2) 2. Synthesis of mutual angular force: F = (F12 + F22 + 2f1f2cos) α) 1 / 2 (cosine theorem) F1 ⊥ F2: F = (F12 + F22) 1 / 2 3. Range of resultant force: | F1-F2 | ≤ f ≤| F1 + F2 | 4. Orthogonal decomposition of force: FX = fcos β， Fy＝Fsin ββ Is the angle TG between the resultant force and the x-axis β＝ FY / FX note: (1) the composition and decomposition of force (vector) follow parallelogram rule 2) The relationship between resultant force and component force is equivalent substitution relationship, which can replace the joint action of component force with resultant force, and vice versa 3) In addition to the formula method, it can also be solved by the drawing method. In this case, the scale should be selected and the drawing should be strict 4) When the value of F1 and F2 is fixed, the angle between F1 and F2 is smaller α The larger the angle, the smaller the resultant force 5) The combination of forces on the same straight line can take the positive direction along the straight line, and use the sign to indicate the direction of the force, which can be simplified into algebraic operation. 4、 Dynamics (motion and force) 1. Newton's first law of motion (Law of inertia): an object has inertia and always maintains a uniform linear motion or a static state until it is forced to change this state by an external force. 2. Newton's second law of motion: F = ma or a = f = ma / MA {determined by the combined external force and consistent with the direction of the combined external force} 3. Newton's third law of motion: F = - F & # 180{ The negative sign indicates the opposite direction, F, F and 180; 4. The balance of the common point force F = 0, the promotion of {orthogonal decomposition method, the principle of three forces} 5. Overweight: FN & gt; G. Weight loss: FN & lt; The applicable conditions of Newton's law of motion are: it is applicable to solve the problem of low-speed motion, it is applicable to macro objects, it is not applicable to deal with high-speed problems, and it is not applicable to micro particles [see p67 in Volume I, note: the state of equilibrium means that the object is in the state of static or uniform straight line, or uniform rotation. 5、 Vibration and wave (mechanical vibration and propagation of mechanical vibration) 1. Simple harmonic vibration f = - KX {F: restoring force, K: proportional coefficient, X: displacement, negative sign indicates that the direction of F is always opposite to x} 2. Simple penlum period T = 2 π( L / g) 1 / 2 {L: penlum length (m), G: local gravity acceleration value, the tenable condition: penlum angle θ& lt; 100; l>& gt; 3. Forced vibration frequency characteristics: F = f driving force 4. Resonance conditions: F driving force = f solid, a = max, resonance prevention and application [see Volume I P175] 5. Mechanical wave, shear wave and longitudinal wave [see Volume II P2] 6. Wave velocity v = s / T = λ f＝ λ/ In the process of t {wave propagation, a period propagates one wavelength forward; The velocity of sound wave (in air) is 0 ℃: 332m / s; 20℃:344m/s 30℃:349m/s( The interference condition of wave: the frequency of two trains of waves is the same (the difference is constant, the amplitude is similar, and the vibration direction is the same). 10. Doppler effect: e to the mutual movement between the wave source and the observer, the interference condition of wave is the same, Results in the difference between the transmitting frequency and the receiving frequency of the wave source {close to each other, the receiving frequency increases, otherwise, it decreases} note: (1) the natural frequency of the object has nothing to do with the amplitude and the driving force frequency, but depends on the vibration system itself 2) The strengthening area is where the wave crest meets the wave crest or the wave trough meets the wave trough, while the weakening area is where the wave crest meets the wave trough 3) The wave only propagates the vibration, the medium itself does not move with the wave, it is a way of transferring energy 4) There are interference and diffraction 5) Vibration image and wave image 6) Other related contents: ultrasound and its application [see P22 in Volume 2] / energy conversion in vibration [see p173 in Volume 1]. 6、 Momentum: P = MV {P: momentum (kg / s), M: mass (kg), V: velocity (M / s), the direction is the same as the direction of velocity} 3. Impulse: I = ft {I: impulse (n ᦇ 8226; n ᦇ 8226; n ᦇ 8226; V: velocity (M / s), the direction is the same as the direction of velocity}; s) 4. Theorem of momentum: I = Δ P or ft = MVT – MVO{ Δ p: Momentum change Δ 5. Law of conservation of momentum: P before total = P after total or P = P '& # 180; It can also be m1v1 + m2v2 = m1v1 & # 180+ m2v2´ 6. Elastic collision: Δ p＝0 Δ EK = 0 {i.e