Internet
Bitcoin, Ethereum, Litecoin and Monero—the names of digital-based cryptocurrencies are being heard more and more frequently. But despite having no physical representation, could these new methods of exchange actually be ...
Nov 13, 2019
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Engineering
Skydio 2 Dock is from the company with the same name, Skydio. The company showed a video of it on Wednesday. They said in the video notes that "We look forward to partnering with our first customers and regulators to roll ...
Machine learning & AI
Researchers at Hefei University of Technology in China and various universities in Japan have recently developed a unique emotion sensing system that can recognize people's emotions based on their body gestures. They presented ...
Internet
Automation and digitalization are increasingly used in almost every major industry to improve efficiency. Thanks to rapid advances in artificial intelligence and robotics, and innovations like X-ray diffraction and electric ...
Aug 30, 2019
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5
Energy & Green Tech
Industry figures show the global rate of solar energy installations grew by 30 percent in one recent year, and the average cost of installing solar has fallen from $7 per watt to $2.8 per watt, making rooftop solar attractive ...
Aug 8, 2019
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4
Internet
Social media can expose users to misinformation, including fake news—news stories with intentionally false information. In fact, during the 2016 U.S. presidential election, fake news engaged more people than real news, ...
Jul 18, 2019
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Energy & Green Tech
The cryptocurrency Bitcoin is known for its massive energy footprint. Now, researcher Alex de Vries, from PricewaterhouseCoopers (PwC) in the Netherlands, suggests that renewable hydropower production cannot supply the large ...
Mar 14, 2019
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129
Computer Sciences
Scientists have developed a deep neural network that sidesteps a problem that has bedeviled efforts to apply artificial intelligence to tackle complex chemistry—a shortage of precisely labeled chemical data. The new method ...
Feb 26, 2019
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Machine learning & AI
To make a Dadaist poem, artist Tristan Tzara once said, cut out each word of a newspaper article. Put the words into a bag and shake. Remove the words from the bag one at a time, and write them down in that order.
Feb 15, 2019
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Robotics
Multi-legged robots are capable of navigating a variety of complex and unstructured terrains. Their many degrees of freedom allow them to adapt their walking posture to navigate several challenging environments, including ...
Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body, vein or (coal) seam. The term also includes the removal of soil. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock salt and potash. Any material that cannot be grown through agricultural processes, or created artificially in a laboratory or factory, is usually mined. Mining in a wider sense comprises extraction of any non-renewable resource (e.g., petroleum, natural gas, or even water).
Mining of stone and metal has been done since pre-historic times. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials and finally reclamation of the land to prepare it for other uses once the mine is closed.
The nature of mining processes creates a potential negative impact on the environment both during the mining operations and for years after the mine is closed. This impact has led to most of the world's nations adopting regulations to moderate the negative effects of mining operations. Safety has long been a concern as well, though modern practices have improved safety in mines significantly.
This text uses material from Wikipedia, licensed under CC BY-SA
