Coal mining Wikipedia
Coal is valued for its energy content and since the 1880s has been widely used to generate electricity Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production In the United Kingdom and South Africa a coal mine and its structures are a colliery a coal mine a pit and the
Coal mine definition and meaning Collins English Dictionary
Coal mine definition A coal mine is a place where coal is dug out of the ground Meaning pronunciation translations and examples
expressions What is quot a canary in a coal mine quot English
A canary in a coal mine is an advanced warning of some danger The metaphor originates from the times when miners used to carry caged canaries while at work if there was any methane or carbon monoxide in the mine the canary would die before the levels of the gas reached those hazardous to
Coal mining definition and meaning Collins English Dictionary
Coal mining definition the act process or industry of extracting coal from the earth Meaning pronunciation translations and examples
Urban Dictionary Coal Mining
The act of consuming alcohol at a drinking establishment during day time hours or immediately after a work day usually in solidarity or a small group Conversation is nonexistent or light and the participant s need to appear preoccupied in thought typically staring into the bar top Jeremy has been coal mining since he got
