Gold mining is the resource extraction of gold by mining.
As of 2016, the world’s largest gold producer was China with 463.7 tonnes. The second-largest producer, Australia, mined 287.3 tonnes in the same year, followed by Russia with 274.4 tonnes.
Archive | January, 2018
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BTC Markets is a large cryptocurrency exchange based in Melbourne, Australia. BTC Markets accepts Australian dollars, Litecoin, and Bitcoin in exchange for Bitcoin, Litecoin, Ethereum, Ethereum Classic, and Ripple. BTC Markets uses various security measures, including know your customer procedures and two-factor authentication.
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Bitcoin Magazine is one of the original news and print magazine publishers specializing in Bitcoin and digital currencies. Bitcoin Magazine began publishing in 2012, and was co-founded by Vitalik Buterin and Mihai Alisie. It is currently owned and operated by BTC Media in Nashville, Tennessee. Richtopia listed Bitcoin Magazine as #8 on its “Top 100 most influential companies in blockchain.”
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Data mining is the computing process of discovering patterns in large data sets involving methods at the intersection of machine learning, statistics, and database systems. It is an essential process where intelligent methods are applied to extract data patterns. It is an interdisciplinary subfield of computer science. The overall goal of the data mining process is to extract information from a data set and transform it into an understandable structure for further use. Aside from the raw analysis step, it involves database and data management aspects, data pre-processing, model and inference considerations, interestingness metrics, complexity considerations, post-processing of discovered structures, visualization, and online updating. Data mining is the analysis step of the “knowledge discovery in databases” process, or KDD.
The term is a misnomer, because the goal is the extraction of patterns and knowledge from large amounts of data, not the extraction (mining) of data itself. It also is a buzzword and is frequently applied to any form of large-scale data or information processing (collection, extraction, warehousing, analysis, and statistics) as well as any application of computer decision support system, including artificial intelligence, machine learning, and business intelligence. The book Data mining: Practical machine learning tools and techniques with Java (which covers mostly machine learning material) was originally to be named just Practical machine learning, and the term data mining was only added for marketing reasons. Often the more general terms (large scale) data analysis and analytics – or, when referring to actual methods, artificial intelligence and machine learning – are more appropriate.
The actual data mining task is the semi-automatic or automatic analysis of large quantities of data to extract previously unknown, interesting patterns such as groups of data records (cluster analysis), unusual records (anomaly detection), and dependencies (association rule mining, sequential pattern mining). This usually involves using database techniques such as spatial indices. These patterns can then be seen as a kind of summary of the input data, and may be used in further analysis or, for example, in machine learning and predictive analytics. For example, the data mining step might identify multiple groups in the data, which can then be used to obtain more accurate prediction results by a decision support system. Neither the data collection, data preparation, nor result interpretation and reporting is part of the data mining step, but do belong to the overall KDD process as additional steps.
The related terms data dredging, data fishing, and data snooping refer to the use of data mining methods to sample parts of a larger population data set that are (or may be) too small for reliable statistical inferences to be made about the validity of any patterns discovered. These methods can, however, be used in creating new hypotheses to test against the larger data populations.
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BTC Markets is a large cryptocurrency exchange based in Melbourne, Australia. BTC Markets accepts Australian dollars, Litecoin, and Bitcoin in exchange for Bitcoin, Litecoin, Ethereum, Ethereum Classic, and Ripple. BTC Markets uses various security measures, including know your customer procedures and two-factor authentication.
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Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine a pit, and the above-ground structures the pit head. In Australia, “colliery” generally refers to an underground coal mine. In the United States, “colliery” has been used to describe a coal mine operation but nowadays the word is not commonly used.
Coal mining has had many developments over the recent years, from the early days of men tunnelling, digging and manually extracting the coal on carts, to large open cut and long wall mines. Mining at this scale requires the use of draglines, trucks, conveyors, hydraulic jacks and shearers.
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BTC is the primary telecommunications provider for the Bahamas, headquartered in Nassau, New Providence. It is partly government owned and offers telephone, internet and wireless services.
BTC is an acronym for the Bahamas Telecommunications Company and offers telephone, internet and wireless services. In New Providence and Grand Bahama, it operates a GSM based EDGE, HSPA, HSPA+ and LTE network. Dual-class shares are 49% economic shares/49% voting shares of BTC are owned by the Government of the Bahamas, with 49% economic shares/51% voting shares owned by Cable & Wireless Communications and 2% economic shares in a national trust.
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The bitcoin network is a peer-to-peer payment network that operates on a cryptographic protocol. Users send and receive bitcoins, the units of currency, by broadcasting digitally signed messages to the network using bitcoin cryptocurrency wallet software. Transactions are recorded into a distributed, replicated public database known as the blockchain, with consensus achieved by a proof-of-work system called mining. The protocol was designed in 2008 and released in 2009 as open source software by Satoshi Nakamoto, the name or pseudonym of the original developer/developer group.
The network requires minimal structure to share transactions. An ad hoc decentralized network of volunteers is sufficient. Messages are broadcast on a best effort basis, and nodes can leave and rejoin the network at will. Upon reconnection, a node downloads and verifies new blocks from other nodes to complete its local copy of the blockchain.
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Bitcoin.com is a company that provides bitcoin and Bitcoin Cash services, such as purchasing and selling these cryptocurrencies, and choosing a wallet for bitcoin or bitcoin cash. The associated website aims to be a bitcoin-cash-related web portal. Accordingly it features a range of services such as news, various tools, widgets and charts as well as a store and online casino.
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The following are forks of the software client for the Bitcoin network derived from the reference client, Bitcoin Core:
Bitcoin XT
Bitcoin Classic
Bitcoin Unlimited
