SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Mining at night. Vast excavator at work at an open-cast coal mine at night. At the end of the boom (right) is a large wheel which has huge cutting scoops fitted to it. These cut into the coal seam, and deposit the coal onto a conveyor belt on the boom. The coal is thus carried from the face, and loaded into trucks. Waste material, such as surface cover and underlying strata, are later replaced in the mine. Photographed in Kazakhstan.
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