Coal mining has had many developments over the recent years, from the early days of men tunnelling, digging and manually extracting the coal on carts, to large open cut and long wall mines.
Mining at this scale requires the use of draglines, trucks, conveyors, hydraulic jacks and shearers.
The Industrial Revolution, which began in Britain in the 18th century and later spread to continental Europe and North America, was based on the availability of coal to power steam engines.
International trade expanded rapidly when coal-fed steam engines were built for the railways and steamships.
In Australia, "colliery" generally refers to an underground coal mine.
In the United States "colliery" has been used to describe a coal mine operation but nowadays the word is not commonly used.
It makes no sense at all if man appeared at the end of billions of years.Familiar to us as the black substance in charred wood, as diamonds, and the graphite in “lead” pencils, carbon comes in several forms, or isotopes.One rare form has atoms that are 14 times as heavy as hydrogen atoms: carbon-14, or C ratio gets smaller.We will deal with carbon dating first and then with the other dating methods.Carbon has unique properties that are essential for life on Earth.