6本のエピソード
Earth's physical resources: rocks for roads - for iPod/iPhone The Open University
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- 教育
Everyday life and the fabric of modern civilisation depend on using the Earth’s physical resources. This album explores the occurrence, availability, exploitation and sustainability of rocks and minerals. The two video tracks feature Thrislington and Divithill quarries in the north of England. Quarry and road construction managers talk about extraction and road laying processes, bulk aggregate transportation and ways to limit the impact of quarries on their surroundings. This material forms part of the course S278 Earth's physical resources: origin, use and environmental impact.
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- video
How a quarry works
Quarry managers explain how rock is formed and how they extract different layers of stone. Once blasted and processed, it is used to build roads.
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Transcript -- How a quarry works
Quarry managers explain how rock is formed and how they extract different layers of stone. Once blasted and processed, it is used to build roads.
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- video
Longterm sustainability of quarries
A look at the road laying process. The need to supply locally, use natural road products and protect the environment around quarries.
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Transcript -- Longterm sustainability of quarries
A look at the road laying process. The need to supply locally, use natural road products and protect the environment around quarries.
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