What's a Coal Miner to Do?: The Mechanization of Coal Mining
For more than a hundred years, from before the Civil War to well into the 1930s, the production of coal depended on the simple act of taking shovel in hand, scooping up a pile of the material, and throwing it into an empty mine the period that bituminous coal provided energy for the nation's industrial revolution, each year human muscle lifted nearly half a billion tons of coal an ...
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