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How to use coal in a sentence

Looking for sentences and phrases with the word coal? Here are some examples.

Sentence Examples

Bituminous coal must meet a set of criteria for use as coking coal, determined by particular coal assay techniques.
At its peak in 1949 25,000 miners dug 17 million metric tons of coal from Nova Scotian mines.
The Somerset Coal Canal was built in the early 19th century to reduce the cost of transportation of coal and other heavy produce.
This rule was quietly dropped, and cheaper coal became the normal fuel, as railways gained acceptance among the public.
In coal mining, accumulating and escaping gases were known originally for their adverse effects rather than their useful qualities.
By 1950, coal production at Grand Lake often reached 1 million tons per year.
It is estimated that during 1982, US coal burning released 155 times as much radioactivity into the atmosphere as the Three Mile Island accident.
Paleontologists from North Carolina State University have found the fossilized remains of the world's largest turtle in a coal mine in Colombia.
From 1916 to 1925 coal was mined at a small settlement named Tunheim on the northeastern coast, but mining was given up as unprofitable.
In 1768, John Wilkinson built a more practical oven for converting coal into coke.
It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal except for graphite.
When a cement kiln is fired by coal, the ash of the coal acts as a secondary raw material.
The main residence at the fort was designed with two 11 foot wide fireplaces which were stocked with wood and coal from up river.
Due to this earliest export of coal in North America, Grand Lake has been recognized as a Canadian Historic Site.
The law requires that states set up their own Reclamation Departments and legislate laws related to reclamation for coal mining operations.
At the same time, gas lights using natural gas or coal gas were coming into wide use.
With the coal machinery now redundant, a tidal creek named the Mere was partly filled in for a vast fuel tank farm.
Incineration produces fly ash and bottom ash just as is the case when coal is combusted.
The coal seams are up to 100 metres thick, with multiple coal seams often giving virtually continuous brown coal thickness of up to 230 metres.
Many Italians worked in the coal industry and, unlike the German immigrants, they did not dedicate themselves very much to agriculture.
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The central portion of the Lower Peninsula contains coal measures and rocks of the Pennsylvanian period.
In 1603, Hugh Plat suggested that coal might be charred in a manner analogous to the way charcoal is produced from wood.
Other advantages of hot blast were that raw coal could be used instead of coke.
Anthracite is a hard, compact variety of coal that has a submetallic luster.
Historically from time to time, underground seams of coal have caught fire, often from careless or unfortunate mining activities.
The coal used in the next step must be low in nitrogen to avoid the formation of cyanide.
While much of its use remained local, a lively trade developed along the North Sea coast supplying coal to Yorkshire and London.
After the Romans left Britain, in AD 410, there are no records of coal being used in the country until the end of the 12th century.
Before 1800 a great deal of coal was left in places as extraction was still primitive.
Canadian coal mining started in New Brunswick and also occurred in Alberta, British Columbia, Nova Scotia and Saskatchewan.
The fuel cost of operations for a nuclear station is smaller than the fuel cost for operation of coal or gas plants.
Under proper conditions, peat will turn into lignite coal over geologic periods of time.
In the eastern United States the term coal measures has been applied to the Pennsylvanian coal fields.
The widescale use of fossil fuels, coal at first and petroleum later, to fire steam engines enabled the Industrial Revolution.
Efforts around the world to reduce the use of coal has led some regions to switch to natural gas.
The Wealden dome is a Mesozoic structure lying on a Palaeozoic foundation, which can often create the right conditions for coal formation.
Over time these swamps became deposits of coal in the Transantarctic Mountains.
The youngest of the Miocene hominoids, Oreopithecus, is from coal beds in Italy that have been dated to 9 million years ago.
It is considered the lowest rank of coal due to its relatively low heat content.
The first coal was produced from June 1911, with full production reached before the outbreak of the First World War.
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The conversion from coal to biomass power is a growing trend in the United States.
After Indonesia, it is the largest coal producer in SE Asia, but must import additional coal to meet domestic demand.
The three main industries on Spitsbergen are coal mining, tourism and research.
The most significant freight is coal from West Coast mines to the port of Lyttelton for export.
The Gilded Age in America was based on heavy industry such as factories, railroads and coal mining.
Historically these furnaces have used solid fuel, and bituminous coal has proven to be the best choice.
Reardon was born on 8 October 1932, in the coal mining community of Tredegar in Monmouthshire.
This shows the production of 'charked' coal in January 1709 and the furnace was brought into blast on 10 January.
It also allowed use of lower quality coal because less fuel meant proportionately less sulfur and ash.
Attempts to use anthracite as a fuel had ended in failure, as the coal resisted ignition under cold blast conditions.
However, by that time Scotland had developed heavy industries based on its coal and iron resources.
The large coal is raised from the mine and passed through breakers with toothed rolls to reduce the lumps to smaller pieces.
In ancient times steel and iron were impossible to melt using charcoal or coal fires, which could not produce temperatures high enough.
The work in coal mines was hard and dangerous, and so there was a great need for tools to ease this work.
So 28 chaldrons of coal were carbonized daily, and 84,000 lights supplied by those two companies only.
Both of these techniques however left considerable amount of usable coal behind.
Along with the increase in coal production came a very large increase in the population, as people emigrated to the area to seek employment.
This also extended to the continental Rhineland, where bituminous coal was already used for the smelting of iron ore.
Early activity was mainly by levels or adits driven into coal seams from outcrops in the valley sides.
In much of Britain coal was worked from drift mines, or scraped off when it outcropped on the surface.
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The company became a subsidiary of Walter Energy Inc, a large US coal producer based in Alabama which took over Western Coal.
Several oil companies and electricity producers acquired coal companies or leased Federal coal reserves in the west of the United States.
Historically in South Wales the Western Mail has always been associated with its original owners, the coal and iron industrialists.
The plan aims to decrease Germany's dependence on energy derived from coal and nuclear power plants.
Most of Hornby Dock was filled in to allow Gladstone Dock's coal terminal to expand.
His principle duties appear to have been the custody of a heap of coal and a boiler house.
Carboniferous rocks in Europe and eastern North America largely consist of a repeated sequence of limestone, sandstone, shale and coal beds.
Most of the sharks were marine, but the Xenacanthida invaded fresh waters of the coal swamps.
Syngas can be produced from a number of sources, including coal and biomass.
Many of the coal fields date to the Carboniferous period of Earth's history.
There are still some traces of the jetties by which the coal was imported and the lime exported close by at the foot of the crags.
For an equivalent amount of heat, burning natural gas produces about 45 percent less carbon dioxide than burning coal for power.
The port infrastructures were developed to receive coal and oil required for the conflict.
In the energy field, the EDF thermal power plant of Le Havre has an installed capacity of 1,450MW and operates using coal with 357 employees.
The British were looking for a coal depot to service their steamers en route to India.
The typical paddle wheel steamship was powered by a coal burning engine that required firemen to shovel the coal to the burners.
Towards the end of this period the basin rose above sea level, and extensive coal forming swamps developed, particularly in the Anambra Basin.
Nigeria is rich in coal deposits derived from terrestrial organic matter, most of which lie in the Benue Trough.
As more and more coal mines were sunk the population grew to fill the jobs needed to extract the coal.
A pen-pusher in a Sixth ave. office said a coal miner is paid well. I asked him if he ever dug coal. Oh no!
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This coal was valuable for steam railways and steam ships, and an export trade began, via the Taff Vale Railway and the port of Cardiff.
Although of significantly less economic importance, strata deposited along the shore of paleolakes sometimes contain coal seams.
The Taff Vale Railway was built to transport coal from the South Wales Valleys to the docks.
The natural gas and coal consumed by the production of nitrogen fertilizer can account for over half of the agricultural energy usage.
One result was escalating social tensions in Britain, led by the militant coal miners.
The country has the world's largest natural gas reserves, the 8th largest oil reserves, and the second largest coal reserves.
The most notorious form of colliery disaster was the gas explosion, caused by either a buildup of methane gas or coal dust.
A company town, all facilities are owned by Arktikugol, who operate a coal mine.
Since the resettlement of Spitsbergen in the early 20th century, coal mining has been the dominant commercial activity.
The term itself, according to Brockett, originated from all the North East coal mines.
The manor passed about 1572 to John Brooke, who developed coal mining in his manor on a substantial scale.
Highly efficient multiple expansion steam engines began being used on ships, allowing them to carry less coal than freight.
Dark and smoky from the coal vapours, it resembles a huge forge or workshop.
A working coal mine from 1880 to 1980, it was opened to the public in 1983 under the auspices of the National Museum of Wales.
In the 1890s the docks of South Wales accounted for 38 percent of British coal exports and a quarter of global trade.
Striking coal miners in the Hanley and Longton area ignited the nationwide 1842 General Strike and its associated Pottery Riots.
Coking coal is different from thermal coal, but it differs not by the coal forming process.
The most important properties of coke are ash and sulfur content, which are dependent on the coal used for production.
Although initially excavated for export, coal was soon also needed for the smelting process in Britain's expanding metallurgical industries.
The discovery of coal in the South Wales Valleys north of Bridgend had a massive impact on the town.
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Easy access to Cornish ores and a local outcropping of coal near the surface, gave Swansea economic advantages in the smelting industry.
Until the 1950s, Herzogenrath's economy was dominated by coal mines and a nearby coking plant.
Based on current UK coal consumption, these volumes represent reserves that could last the UK between 200 and 400 years.
The coal deposits of Lanarkshire, and further sedimentary deposits, date from this time.
Lastly, it may refer to coal exported from Britain during the 19th century.
Since the 1980s, anthracite refuse or mine waste has been used for coal power generation in a form of recycling.
The pocket of ignited coal is fed oxygen by vent paths that have not yet been discovered.
The ECSC's aim was to combine the coal and steel industries of its members to create a single market in those resources.
Huntsman used coke rather than coal or charcoal, achieving temperatures high enough to melt steel and dissolve iron.
He had previously agreed to take royalties of one third of the savings in coal from the older Newcomen steam engines.
Finally in February 1980 the coal ran out and even Big Pit, then the oldest mine in Wales, had to close.
Both the coal and steel industries were increasingly dominated by large amalgamations, such as Powell Duffryn and Guest, Keen and Nettlefolds.
In 1870 Chance Brothers took over the failing Nailsea Glassworks but problems with coal supply lead to the closure of that business.
By 2010, coal produced over a fourth of the world's energy, and by 2050 it is expected to produce about a third.
The theme of Public Service Broadcasting's third album, Every Valley, follows the rise and fall of Welsh coal mining.
Hunterston Terminal was constructed to bring in bulk ore, but now mainly deals with coal imports.
Large amounts of coal were needed to supply the local ironworks, as it took 3 tons of coal to produce a ton of iron.
Big Pit alone employed some 1,300 men digging a quarter of a million tons of coal a year.
In 1834, Friedlieb Ferdinand Runge discovered phenol, also known as carbolic acid, which he derived in an impure form from coal tar.
Shale gas may be obtained by fracking and there is methane in unmined coal seams that may be extractable.
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An example of this is the coal mining in Zona Centro Sur, Chile, that began as a response to the arrival of steamships to Talcahuano.
Northumberland and Durham were the leading coal producers and they were the sites of the first deep pits.
In other cases, if the geology was favourable, the coal was mined by means of an adit or drift mine driven into the side of a hill.
In addition, old tips were reclaimed for their small coal content, which could be burned in power stations such as nearby Aberthaw.
Landslipping of the steep valley slopes, and subsidence caused by the coal extraction, have also posed problems.
In the 1960s a series of mergers saw coal production shift from small, independent coal companies to large, more diversified firms.
By 1913, this had risen to 10,700,000 tons, making Cardiff second only to Barry, Wales as the largest coal exporting dock in the world.
Activities included coal mining, textile production, particularly cotton, and fishing.
Tyler was born Gaynor Hopkins in Skewen, Wales, to coal miner Glyndwr and housewife Elsie Hopkins.
Onshore wind is an inexpensive source of electric power, competitive with or in many places cheaper than coal or gas plants.
German, Russian, Australian and British railways experimented using coal dust to fire locomotives.
Old coal mine workings, some of which dated from the middle ages had to be filled in before the tunnelling began.
Lord Bute then charged fees per ton of coal that was transported out using his railways.
The recent dumping of small particles of coal and ash known as 'tailings' seems to have been partly responsible.
It grew significantly in the 19th century, when its port became the focus of coal exports from the eastern valleys of South Wales.
The states may impose additional regulations and regulate other minerals in addition to coal for land reclamation.
The large coal deposits of the Carboniferous may owe their existence primarily to two factors.
In outward form and general appearance manjack is not unlike fine coal and is essentially a bituminous substance.
The factories of Wallonia were by then antiquated, the coal was running out and the cost of extracting coal was constantly rising.
According to the Inspector of Mines records, in 1896 the pit employed 356 men producing coal for domestic and industrial uses.
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The three main industries on Svalbard are coal mining, tourism, and research.
Since the resettlement of Svalbard in the early 20th century, coal mining has been the dominant commercial activity.
Earlier work under Frederick the Great surrounded efforts to ease shipping and construct dams to serve coal transportation.
The burning of coal and wood, and the presence of many horses in concentrated areas made the cities the primary sources of pollution.
It thus proceeded around Africa, where it rendezvoused with German supply ships that had been hired to replenish its coal stocks at sea.
Natural gas is found in deep underground rock formations or associated with other hydrocarbon reservoirs in coal beds and as methane clathrates.
There were huge reserves of wood, peat and coal in the Roman Empire, but they were all in the wrong place.
Amber occurring in coal seams is also called resinite, and the term ambrite is applied to that found specifically within New Zealand coal seams.
Wakefield, Castleford, Pontefract and South and East Leeds were traditional coal mining areas.
Oil had superseded coal as the fuel of choice in many industries and there was political pressure influencing the supply of oil.
Bacon had the Cyfarthfa Canal, a short tub boat waterway, constructed during the latter part of the 1770s to bring coal to the ironworks.
From 15,000 miners in 1947, Rhondda had just a single pit within the valleys producing coal in 1984, located at Maerdy.
The rich adjoining farmland has many remnants of abandoned coal workings and deep claypits used to make bricks and tiles.
They often shared routes to allow access to coal mines and ironworks through rugged country, which presented great engineering challenges.
No deep coal mines are left in the valleys since the closure in 2008 of Tower Colliery in the Cynon Valley.
In the UK and other parts of Europe, plentiful supplies of coal made this the obvious choice from the earliest days of the steam engine.
In the 1870s the advent of coal mining to the south of the town gave renewed impetus to the local economy and population growth.
The Lower Bann was also navigable to Coleraine and the Antrim coast, and the short Coalisland Canal provided a route for coal transportation.
Lignitic coal is present in small quantities within seams, and can be seen on the cliffs and shore at Whitecliff Bay.
Belfast's electricity comes from Kilroot Power Station, a 520 MegaWatt dual coal and oil fired plant, situated near Carrickfergus.
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In the early 20th century some locomotives became so large that the fireman could not shovel coal fast enough.
The industrial areas were hardest hit, along with the coal mining districts.
Raising steam from coal took a matter of hours which brought serious pollution problems.
It is responsible for licensing coal mining operations, and for providing information on coal reserves and past and future coal mining.
Around 1796, Woolf believed he could save substantial amounts of coal consumption.
William Davis Miners' Memorial Day is celebrated in coal mining towns to commemorate the deaths of miners at the hands of the coal companies.
Such treatment is generally necessary to achieve adequate flow rates in shale gas, tight gas, tight oil, and coal seam gas wells.
The Bute Merthyr began producing coal in 1855, the first working steam coal colliery in the Rhondda.
Ratios vary depending upon formation pressure, depth of coal and oxidant balance.
It deals with the management and disposal of property, and with surface hazards, such as abandoned coal mine shafts.
While UCG leaves the ash behind in the cavity, the depth of the void left after UCG is typically more than other methods of coal extraction.
Gas is produced and extracted through wells drilled into the unmined coal seam.
Ukraine has sufficient coal reserves and increases its use in electricity generation.
The peaceful demonstrations degenerated into violence, prompting the intervention of coal miners summoned by Iliescu.
The brakeman had to help the fireman shovel coal into the firebox as the engineer coaxed his locomotive up grade.
The provinces overrun by Germany had produced 40 percent of French coal and 58 percent of its steel output.
The iron and coal industries of the Ruhr, the Saar and Upper Silesia especially contributed to that process.
The Blaenavon Ironworks, now a museum, was a major centre of iron production using locally mined or quarried iron ore, coal and limestone.
His father, Robert Owen, was a coal miner, while his mother belonged to the family of Thomas Edwards, poet and writer.
This changed rapidly after 1855 as the coal mining industry brought in an influx of population and by 1905 there were 151 chapels in the valley.
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Much of the recent economic history of Cape Breton Island can be tied to the coal industry.
Thatcher's battle against inflation resulted in the closure of many factories, shipyards and coal pits.
Picket lines were stationed outside the pits and other industrial sites requiring coal and violent clashes with police were common.
Blaenavon was an important centre of coal mining and iron making in South Wales during the late 18th and early 19th centuries.
The fourth side is a viaduct carrying the railway that delivers coal to the Ironbridge Power Station.
A synergy between iron and steel, railroads and coal developed at the beginning of the Second Industrial Revolution.
At the beginning of the war the Government, underestimating the value of strong younger coal miners, conscripted them into the armed forces.
The site is dedicated to operational preservation of the Welsh heritage of coal mining, which took place during the Industrial revolution.
In 1984, after secretly stockpiling coal at power stations, the NCB announced the closure of 20 pits.
A month later, on 14 October, it attacked Michael Heseltine for the mass coal mine closures.
Puddling was done in a reverberatory furnace, allowing coal or coke to be used as fuel.
By the 1830s, hundreds of tons of coal were being transported by barge to ports in Cardiff and Newport.
The 1840s saw the start of a dramatic increase in the amount of coal excavated within Glamorgan.
All Saints' Church stands in the former coal mining village of Gresford in Wrexham County Borough, Wales.
Thus different types of coal are proportionally blended to reach acceptable levels of volatility before the coking process begins.
Gresford Colliery was the site of one of Britain's worst coal mining disasters.
Coke may be combusted producing little or no smoke, while bituminous coal would produce much smoke.
Coke was widely used as a substitute for coal in domestic heating following the creation of smokeless zones in the United Kingdom.
Fraccing is the process of creating cracks in underground coal seams to increase the flow and recovery of gas or oil out of a well.
It was in 1792 that he first began experimenting with the use of gas, derived from the heating of coal and other materials, for lighting.
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By November fuel coal was no longer reaching its destinations, and the production of new armaments was no longer possible.
When used as fuels, coal and wood can introduce smoke, soot and ash into the kiln which can affect the appearance of unprotected wares.
The logistics of such an undertaking in the age of coal power was astounding.
He is also said to have carried out experiments in coal gas, using coal heated in a copper kettle in a small cave near his father's mill.
This story of coal miners who become coal-owners and rivals for the affections of La Dietrich is the purest and oldest ackamarackus.
Balloon loops can be useful for passenger trains and unit freight trains, such as coal trains.
The weakest members of society become social barometers or canaries in a coal mine.
Coal mining was very dangerous owing to the presence of firedamp in many coal seams.
Our first coal region poll, and what a great one it was! Coal Crackers sure do love their pizza.
The old woman shuffled out from the back room with a handful of coal and a bowl of crowdie for the boy.
Using less coal or coke meant introducing fewer impurities into the pig iron.
Prior to the development of Glenrothes the main industries in the area were papermaking, coal mining and farming.
Using electricity as motive power for railroads will do away with fuel trains, tenders, coal handling, water, and all that.
The man who doused the fire was told to put the remainder of the coal into the bucket and then give the bucket to the soldier.
Both in Pechelbronn as in Wietze, the coal industry dominated the petroleum technologies.
Over the next fifty years the Rhondda would grow to become the largest producer of coal of the age.
Firedamp explosions continued, often setting off coal dust explosions, so casualties grew during the entire 19th century.
Wagon ways were used for conveying coal to rivers for further shipment, but canals had not yet been widely constructed.
The richest source for steam coal was the Rhondda Valleys, and by 1856 the Taff Vale Railway had reached the heads of both valleys.
Beatings and long hours were common, with some child coal miners and hurriers working from 4 am until 5 pm.
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Productive coal measures were largely recorded in the southern parts of Glenrothes, approximately south of the line of the B921 Kinglassie road.
It was founded by artist Sir William Blake Richmond, frustrated with the pall cast by coal smoke.
Oil products are more and more in competition with alternative sources, mainly coal and natural gas, both cheaper sources.
John Gilbert had the innovative idea to use water pumped out of his coal mines to fill a canal from the Duke's Worsley mines to Manchester.
At the height of coal production, there were over 160 drift mines and over 30 shafts working the nine seams in the Blaenavon locality.
In 1966, 116 children and 28 adults were killed in Aberfan when a coal spoil tip collapsed onto them.
A new chemical plant was established the following year for making oil and petrol from creosote and coal through a process called hydrogenation.
Chad used to work as a coal miner, but couldn't handle the constant grunge.
The Romans extracted coal here and the area was an important source of coal in the 13th and 14th centuries.
Many current towns and villages across the region were originally settlements set up for the coal miners.
Before the growth of mining companies the coal from the North East was often sent by monks to London.
The coal was often called sea coal because it was washed up from undersea outcrops on the Northumbrian coast.
Davy declined to take out a patent on his lamp design effectively giving it to the nation and of course the world's coal miners.
The last shift left the pit on 10 December 1993, ending over 800 years of commercial underground coal mining in the region.
Previously a lot of this coal was too deep for conventional mining, or too far off shore.
Their report was a meticulous forensic investigation and indicated that coal dust contributed to the severity of the explosion.
It was the first ever seagoing screw collier and was built for John Bowes of Barnard Castle for shipping coal to London.
The coal and shipbuilding industry that once dominated the North East suffered a marked decline during the second half of the 20th century.
Sheffield once had heavy industries, such as coal mining and the steel industry.
Three years later, the only remaining coal pit in the region was Maltby Colliery near Rotherham.
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Coal will give anywhere from 3.6 to 6 per cent coal tar, and this contains on an average 2.5 per cent benzine and its homologens.
Coal mining takes place in the three mountainous regions at 45 distinct coal beds near Mesozoic basins.
By 1921 the coal mines were employing 250,000 men, but this was the peak and in subsequent decades the overseas market began to shrink.
As early as 1643, the French were sending coal and other supplies to the British colony at Boston.
It was commissioned by Francis Egerton, 3rd Duke of Bridgewater, to transport coal from his mines in Worsley to Manchester.
The new extension enabled the supply to Manchester of coal from Leigh and the surrounding districts.
Access to the canal brought about a rapid development in coal mining on the Manchester Coalfield west of Worsley.
In 1867 the Fletchers built a private railway line and the Bedford Basin with facilities for loading coal from Howe Bridge onto barges.
In the 1940s and 50s coal was sent to Barton Power Station and Runcorn Gas Works.
Tommy was the son of a Rhondda coal miner, and had been visiting his grandparents at the time.
Most of the traffic on the canals by this time was in coal delivered to waterside factories which had no other convenient access.
The movement of coal to ships rapidly became a lucrative business, and the line was soon extended to a new port and town at Middlesbrough.
New soft coal fields opened in Ohio, Indiana and Illinois, as well as West Virginia, Kentucky and Alabama.
In January 1826 the first staith opened at Stockton, designed so waggons over a ship's hold could discharge coal from the bottom.
For example, Germany refused to share their formula for synthetic oil from coal until late in the war.
The French imported a third of their coal from Britain and 32 percent of all imports through French ports were carried by British ships.
On average there were about 40 coal trains a day, hauling 28 waggons with a weight of 116 tons.
The locomotives operated for 20 years, but then coal traffic had reduced, which made it uneconomical to maintain the electrification system.
The site includes Timothy Hackworth's house, the Soho Workshop and a former coal drops, which are listed buildings.
The Bridgewater Canal, Britain's first wholly artificial waterway, was opened in 1761, bringing coal from mines at Worsley to central Manchester.
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The combination of competition and improved efficiency halved the cost of coal and halved the transport cost of raw cotton.
His father was a coal miner who lost a leg in a pit accident but continued working as a lift operator at the mine until his death.
In 1910, a number of coal miners in the Rhondda Valley began what has come to be known as the Tonypandy Riot.
The country also has substantial reserves of coal, with several coal mines operating in northwestern Bangladesh.
The most affected was the coal industry, already suffering from declining output as shipping switched to oil.
Reports suggested the attacks blocked the movement of coal to the Greater London regions and urgent repairs were required.
Industry generates chemical products, petroleum and coal products, processed foods and transportation equipment, and paper products.
Goole is Britain's most inland port and is used mostly for importing commodities such as coal and timber.
New coal mines were sunk nearby to feed the furnaces and in time produced coal for export.
Along with general cargo, freight, raw materials such as coal and cotton, the city was also involved in the Atlantic slave trade.
The city grew as an important centre for the wool trade in the 14th century, and later became a major coal mining area.
Recently, new apple tree plantations have been started in grounds belonging to the old coal mines, once important in Asturias.
However, the key element of observation during roasting became difficult and dangerous to do with the coal oven.
The largest coal staithes were located at Dunston in Gateshead, Hebburn and Tyne Dock, South Shields.
Great forests of primitive plants covered the continents, many of which formed the coal beds of Europe and eastern North America.
Cardiff was soon among the most important coal ports in the world and Swansea among the most important steel ports.
At Goyt's Moss and Axe Edge, deep seams were worked and steam engines raised the coal and dewatered the mines.
Coal from the eastern mines was used in lead smelting, and coal from the western mines for lime burning.
It was in this environment that the Coal Measures were formed, the source of the majority of Britain's extensive coal reserves.
However, this in turn was built on its exploitation of natural resources, especially coal and iron ore.
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The UK's primary industry was once dominated by the coal industry, heavily concentrated in the north, the Midlands and south Wales.
Usually these consisted principally of a large cauldron of cooking fat, heated by a coal fire.
By 1830 Newport was Wales' leading coal port, and until the 1850s it was larger than Cardiff.
With the increase in tourism, coal decreased in importance but Sardinia followed the Italian economic miracle.
Second, from 1850 to the outbreak of the First World War, the South Wales Coalfield was developed to supply steam coal and anthracite.
Before 1866, no steamship could carry enough coal to make this voyage and have enough space left to carry a commercial cargo.
The Ruabon area was once heavily industrialised with large deposits of iron, coal and clay.
The coal was renowned in the area as being of very good quality and hot burning.
However, efficiency did not matter very much within the context of a colliery, where coal was freely available.
Thereafter, coal became and remained the dominant fuel worldwide until the end of general use of steam locomotives.
The Black Country Society defines the Black Country's borders as the area on the thirty foot coal seam, regardless the depth of the seam.
From the 1870s onwards, the economy of the town was dominated by the coal mining industry, with only a small tinplate works.
In 1945 the British coal industry cut 72 per cent of their output mechanically, whereas in South Wales the figure was just 22 per cent.
The ships were fitted with oil burners to improve the effectiveness of their main coal fueling.
Another geological definition, the seam outcrop definition, only includes areas where the coal seam is shallow.
The engines could be sited anywhere that water and coal or wood fuel could be obtained.
The cargo carried on these lines was of a very high volume, and in 1850 the Taff Vale Railway was transporting 600,000 tons of coal per annum.
On the second contract precautions were taken as the length was built on old coal mine workings.
The tunnel under Gateshead, was bored through sandstone and excavated coal seams.
All the subsurface mines were closed by 2001, although some open pit coal mining continues near Stellarton.

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