Online Video Guide

Coal is the fuel that is responsible for more than half the electricity we use on a daily basis. Modern Marvels: Coal Mines traces the amazing technological advances that have led to today's extremely efficient methods of mining this resource from the earth. We first go underground with the miners in a shaft mine in West Virginia to witness a huge machine rip apart a wall of coal as one miner maneuvers the machine with a remote control. In another mine in Pennsylvania, we see the most advanced method of underground coal mining at work -- longwall mining. A massive machine extracts an entire wall of coal in just seconds. Then we travel back in time to explore ancient coal mining techniques when laborers used primitive tools to pick at the coal wherever they could find it. The coal was used to warm their homes and to bake their pottery. By the 13th Century, coal started to slowly replace wood as the main source of fuel as the European forests begin to dwindle. In the next several hundr