Dirty Great Machines Tunnel Boring Machines, Technology Documentary, Reel Truth. Science
39 million tonnes of raw sewage floods through London s rivers every year causing a huge stink in the city. The Victorian sewer system can t cope with volumes and a new super sewer must be built. To do this, a tunnel boring machine must be brought in to excavate underground. For more awe inspiring documentaries, subscribe to our channel: Welcome to Reel Truth. Science the home of inspiring documentaries from the scientific and medical world. Here you can find full length documentaries to discover and explore.
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