Best Ever Q&A Space Our World Nature History Science & Technology Human Body Senses & Organs Science of Life Chemicals & Matter Atoms & Molecules Materials Forces & Energy Sound Electricity & Magnetism Heat & Light Everyday Science Industry Transportation Computers Machines Ships Undersea Exploration Land Travel Cars Flight Structures Buildings Farming

Choose a Page:How is plastic made into shapes?*How is coal mined?*What is paper made from?How is cloth made on a loom?How is a newspaper printed?How is iron extracted from iron ore? How is coal mined? Most coal is mined by either the 'longwall' or 'room-and-pillar' method. In longwall mining a giant coal cutter runs down the coal face removing coal as it goes. In room-and-pillar mining the coal is removed from chambers, but pillars of coal are left behind to support the roof.   Previous: Back Book: Best Ever Q&A Section: Science & Technology Chapter: Industry