Последние добавленные видео:
Mining-Coal-Is
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4 years ago
76691 4 years ago 2:19Industrial Revolution: Coal Mining
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2 years ago
168570 2 years ago 1:23How Coal is Formed
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4 years ago
4520 4 years ago 3:25How Coal Is Strip Mined
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4 years ago
110254 4 years ago 15:53Documentary on COAL: Mining, History and Future Outlook
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1 year ago
803737 1 year ago 10:51The Hard Life of Working in a Coal Mine
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1 year ago
4240 1 year ago 15:41What’s COAL & Why Do We Mine Coal?
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8 years ago
8496 8 years ago 1:17How coal is extracted from an open pit mine
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7 months ago
379371 7 months ago 25:34I went INSIDE the last coal MINE in Longyearbyen ︱ Svalbard
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8 years ago
2738931 8 years ago 4:43Digging for Hope: Inside an Ohio coal mine