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Test bench for a miner's closed circuit self-rescuers. A self-contained self-rescue device, SCSR, self-contained self-rescuer, or air pack is a type of closed-circuit SCBA [1] with a portable oxygen source for providing breathable air when the surrounding atmosphere lacks oxygen or is contaminated with toxic gases, e.g. carbon monoxide.
In December 2020, in place of their annual YouTube Rewind series, YouTube released a list of their top-trending videos and creators. On the U.S. list, YouTube ranked Dream's "Minecraft Speedrunner VS 3 Hunters GRAND FINALE" video as the number seven "Top Trending Video", and ranked Dream as the number two "Top Creator" and number one "Breakout ...
Richard Llewellyn's novel How Green Was My Valley (1939) describes the social and environmental effects of coal mining in Wales at the turn of the 20th century. The local mine's spoil tip, which he calls a slag heap, is the central figure of devastation. Eventually the pile overtakes the entire valley and crushes Huw Morgan's house:
Fatigue has traditionally been associated with the failure of metal components which led to the term metal fatigue. In the nineteenth century, the sudden failing of metal railway axles was thought to be caused by the metal crystallising because of the brittle appearance of the fracture surface, but this has since been disproved. [ 1 ]
A mine railway (or mine railroad, U.S.), sometimes pit railway, is a railway constructed to carry materials and workers in and out of a mine. [1] Materials transported typically include ore , coal and overburden (also called variously spoils, waste, slack, culm, [ 2 ] and tilings; all meaning waste rock).
Erie Mining Company 4211 preserved at the Lake Superior Railroad Museum in 2014. The Cliffs Erie Railroad (reporting mark LTVX) was a railroad that operated from Hoyt Lakes to Taconite Harbor, Minnesota. The railroad opened in 1956 by Erie Mining Company to transport taconite from Hoyt Lakes to Taconite Harbor. In 1989, LTV Steel purchased Erie ...
Alarm fatigue occurs in many fields, including construction [2] and mining [3] (where vehicle back-up alarms sound so frequently that they often become senseless background noise), healthcare [4] (where electronic monitors tracking clinical information such as vital signs and blood glucose sound alarms so frequently, and often for such minor ...
Training for mine rescuers conducted aboveground A video describing challenges experienced by mine rescue personnel. Mine rescue or mines rescue is the specialised job of rescuing miners and others who have become trapped or injured in underground mines because of mining accidents, roof falls or floods and disasters such as explosions.