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.

Security

Cryptojacking spreads across the web

Right now, your computer might be using its memory and processor power – and your electricity – to generate money for someone else, without you ever knowing. It's called "cryptojacking," and it is an offshoot of the rising ...

Energy & Green Tech

Researchers publish discoveries in battery technology

NJIT researchers are finding alternative solutions to a material that has become an essential, yet costly, building block in the supply chain of today's smart device-driven world—cobalt.

page 2 from 11

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