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Bridge

The Akashi Kaikyo bridge in Japan is the longest suspension bridge in the world. Stretching 2km thought the deep strait, the bridge is withstanding the strongest force from mother nature, from powerful typhoons to deadly earthquakes. How the engineers and hang a longest suspension bridge in the last place to build bridge in the world. This episode will reveal 7 technological breakthroughs from 7 incredible bridges, which supports the builders to create the amazing Akashi bridge.
 
The bridges featured in the episode: 
1. Ironbridge (30m)
2. Menai bridge (177m)
3. Niagara Falls Bridge (250m)
4. Brooklyn Bridge (486m)
5. Golden Gate Bridge (1280m)
6. Verrazano Narrows Bridge (1298m)
7. Akashi Kaikyo Bridge (1991m) 
 
Seven leap forward helping the engineers to build longer and longer bridges 
Leap 1: material
Leap 2: the suspension bridge
Leap 3: strong chains
Leap 4: building underwater
Leap 5: taller towers
Leap 6: wind
Leap 7: earth quake 
 
Bridge
Big-Bigger-Biggest
2008
 
(Movie copyright: National Geographic,
English subtitle prepared by ACUD.VN) 
 
Youtube trailer: http://youtu.be/kuxM4fdcekU
 
Click "Tải bản video đầy đủ" to download
 
K.D.