Machine learning & AI

Study gets up close with near-death experiences

Those who momentarily shuffled off this mortal coil returned with positive perceptions of what they discovered on the other side—a finding that encourages researchers to dig deeper into the ways people describe near-death ...

Machine learning & AI

EmoSense: an AI-powered and wireless emotion sensing system

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 ...

Energy & Green Tech

Spotlight glare on Bitcoin as numbers show mining's energy use

(Tech Xplore)—We heard in early studies that Bitcoin used much energy. Digiconomist can take us down memory lane when an investigation into the energy consumption of the Bitcoin network was conducted by Karl J. O'Dwyer ...

Computer Sciences

New AI model tries to synthesize patient data like doctors do

Artificial intelligence will never replace a doctor. However, researchers at the Department of Energy's Pacific Northwest National Laboratory have taken a big step toward the day when AI can help physicians predict medical ...

Computer Sciences

Brain-on-a-chip would need little training

A neural network that mimics the biology of the brain can be loaded onto a microchip for faster and more efficient artificial intelligence.

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Mining

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