Big, Bigger, Biggest Season 2 Tunnel 2009
6.8/10 by 6 users
Unearth the technological leaps forward that have allowed the world's longest tunnel - the Gotthard Base Tunnel - to be built. The Gotthard Base Tunnel stretches 57 kilometres through the heart of the Swiss Alps. It is deeper than any other tunnel on Earth and paves the way for a vital high-speed rail link between Zurich and Milan. 2000 workers and four gigantic tunnel boring machines work flat-out to excavate 24 million tonnes of mountain rock to complete the tunnel. Explore how this structure was made possible through a series of six engineering breakthroughs. See how six landmark tunnels - including the Thames Tunnel and Channel Tunnel - each feature an ingenious technological innovation that have enabled tunnels to grow ever longer.
- Released: 2009-07-28
- Runtime: 50 minutes
- Genre: Documentary
- Stars:
- Director:
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2. Submarine 2009-08-04
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3. Aircraft 2009-08-11
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4. Oil Rig 2009-08-18
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5. Sky Wheel 2009-08-25
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6. Space Station 2009-09-01
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8. Cruise Ship 2009-09-15
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10. Telescope 2009-09-22
