coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… … Universalium
Coal-tax post — Coal tax obelisk by the railway at Wormley, Hertfordshire. The inscription reads: 14 15 VIC C 146, identifying it with the 1851 Act of Parliament … Wikipedia
Coal tax post — Coal tax posts were marker posts, about 250 in number, first erected in 1851 and forming a rough circle about twenty miles from the centre of London, England, to mark the points where taxes on coal and wine due to the Corporation of London had to … Wikipedia
Coal phase out — A coal phase out is a type of fossil fuels policy that dictates the gradual shutdown of operating coal fired power plants while prohibiting construction of new plants. Main Causes Environment Global warming The primary reasons for a government to … Wikipedia
Coal hole — A selection of coal hole covers from Gordon Square, London and surrounding streets A coal hole is a hatch in the pavement (sidewalk, in US usage) above an underground coal bunker.[1] They are sometimes found outside houses that existed during the … Wikipedia
History of coal mining — Due to its abundance, coal has been mined in various parts of the world throughout history and continues to be an important economic activity today. Compared to wood fuels, coal yields a higher amount of energy per mass and could be obtained in… … Wikipedia
Hunter Valley Coal Chain — The Hunter Valley Coal Chain (HVCC) is the chain of coal delivery in New South Wales, Australia from (mainly open cut) coal mines in the Hunter Valley to the Port of Newcastle and to domestic coal fired power stations in the Hunter Valley. The… … Wikipedia
Bituminous coal — is a relatively soft coal containing a tarlike substance called bitumen. It is of higher quality than lignite coal but poorer quality than anthracite coal. Bituminous coal is an organic sedimentary rock formed by diagenetic and submetamorphic… … Wikipedia
The Coal Question — Infobox Book | name = The Coal Question; An Inquiry Concerning the Progress of the Nation, and the Probable Exhaustion of Our Coal Mines image caption = Graph included in the treatise author = William Stanley Jevons translator = illustrator =… … Wikipedia
Hard coal — Hard Hard (h[aum]rd), a. [Compar. {Harder} ( [ e]r); superl. {Hardest}.] [OE. hard, heard, AS. heard; akin to OS. & D. hard, G. hart, OHG. herti, harti, Icel. har[eth]r, Dan. haard, Sw. h[*a]rd, Goth. hardus, Gr. kraty s strong, ka rtos, kra tos … The Collaborative International Dictionary of English