The concept of bitcoin was originally proposed by Nakamoto in 2009 and designed and released open source software based on Nakamoto's ideas and built a P2P network on it. Bitcoin is a P2P form of digital currency. Point-to-point transmission means a decentralized payment system.
The popular point is that the total amount of bitcoin is fixed, and the output per cycle gradually declines with a particular algorithm. Now bitcoin is equivalent to a currency equivalent to 1.26w. Bitcoin traffic on the Internet is even more attractive than US dollars. This is the original author unexpected.
Since May 12, many people have been scandalized by news of "ransomware". Nearly 100 countries in the world have encountered this large-scale cyber-virus attack together. Colleges and universities are in an emergency and the hospital is in an emergency. Many local area network systems Have fallen.
This wave of attacks will lock the "recruit" computer files and issue "blackmail letter", the letter hackers to pay ransom unlock, and this key ransom is not a currency of any country, but the virtual currency - - Bitcoin. It is worth mentioning that, just two days before the outbreak of the virus, the bitcoin price in China skyrocketed again and the maximum exceeded 10,000 yuan. What exactly is bitcoin? Why is "ransomware" choosing bitcoin as a ransom? "Fire" bitcoin, "you deserve it"?
Before listening to my colleagues talked about bitcoin, in the first few years the first wave of people who basically engage in bitcoin is already wealthy, because at that time easier to get hands, a large influx of miners in addition with the advent of the new cycle, Currency becomes more and more difficult.
Blockchain, I understand is probably so mean, a variety of large and small summary algorithm results obtained with the bitcoin algorithm, fight is a probability problem.
Blockchain technology is the underlying technology of bitcoin, and in the early days, not too many people noticed the underlying technology of bitcoin. But when Bitcoin was operated and managed without any centralized organization, it operated very steadily over the years without any problems. So many people noticed that this underlying technology may have a great mechanism, and it is not just used in bitcoin, but may be applied in many areas. So abstraction extracted from bitcoin technology, called blockchain technology, or distributed ledger technology. So from a certain point of view, Bitcoin can be seen as the first application of the blockchain, and the blockchain is more similar to the underlying technology such as TCP / IP, which will be extended to more and more industries in the future.
Popular point, a complete theme is divided into a number of small parts, a clear division of labor specialization to avoid the shortcomings of centralized type, making the system fine operation.
Gantry Crane are also known as Portal crane or Goliath crane. Include Single Girder Gantry Crane, Double Girder Gantry Crane, engineer gantry crane, semi gantry crane, European type gantry crane and operate on floor mounted rails. Mainly used in Steel, Forest Products, Intermodal, Biomass/Pellet, Concrete and many other industries.
The terms gantry crane and Overhead Crane (or Bridge Crane) are often used interchangeably, as both types of crane straddle their workload. The usual distinction drawn between the two is that with gantry cranes, the entire structure (including gantry) is usually wheeled (often on rails). By contrast, the supporting structure of an overhead crane is fixed in location, often in the form of the walls or ceiling of a building, to which is attached a movable hoist running overhead along a rail or beam (which may itself move).
Gantry Crane
Single Girder Gantry Crane,Double Girder Gantry Crane,Rail Mounted Crane,Portable Lifting Gantries
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