Tập
Modern Marvels: Episode 40
Tóm tắt
The St. Lawrence Seaway is a monumental stairway in water, lifting massive ships hundreds of feet over thousands of miles. It’s the world’s longest inland waterway, a system of rivers, lakes, canals, dams, and locks that stretches 2,400 miles. And it’s one of the greatest engineering triumphs of the 20th century, pulled off against the violence of raging water and extreme winter. An essential part of the commercial infrastructure of the US and Canada, this complex system provides direct access from the Atlantic to North America’s heartland, enabling ships packed with trade to stop at any one its 65 ports–from Montreal to Duluth. From the 16th century, when French explorer Jacques Cartier searched for the legendary Northwest Passage, to the modern Seaway, built in the 1950s, we highlight the incredible engineering feats that went into creating the waterway.
Chi tiết
- Phim bộ
- Modern Marvels
- Mùa
- Mùa 11
- Tập
- Tập 40
- Ngày phát sóng
- 2004-09-15
- Thời lượng
- 44 min
Thông tin tập
Episode 40 là tập 40 trong Season 11 của Modern Marvels. Tập này phát sóng ngày 2004-09-15. Thời lượng là 44 min.
Tập trước / tập sau
Tập 39
Some 23,000 people walk through the Sears Tower’s domed entrances daily. 104 elevators (some double-decker), moving at speeds up to 1,600 feet per minute, transport workers and visitors to the 110 floors of North America’s tallest building. Sears, Roebuck and Company began as a small mail-order business in Chicago, and by 1960, had grown into the biggest global retailer. Sears Chairman Gordon Metcalf proposed bringing the company under one roof to create the world’s largest headquarters. Join us for a look at this pioneering building that remains a symbol of the future and a tribute to the company that dreamt big enough to build it!
Tập 41
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Tập 36
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Tập 34
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Tập 46
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