
23 季节
705 插曲
现代奇迹 - Season 6 Episode 30 第 30 集
The task was monumental: Build the world's largest dam in the middle of the desert, and tame the river that carved the Grand Canyon–all in seven years! When the Hoover Dam was completed in 1935, it was the largest dam in the world. We'll reveal how this engineering wonder of the world was conceived and built.
- 年: 2022
- 国家: United States of America
- 类型: Documentary
- 工作室: History, H2
- 关键词: technology, invention, disaster, construction, machine
- 导向器: Bruce Nash
- 投: