Ancient Egyptian Building Methods Inspired this Grand Canyon Bridge | Host Jay Ellis
Автор: Smithsonian Channel
Загружено: 2022-11-21
Просмотров: 38473
Описание:
To build the breathtaking Skywalk Glass Bridge over the Grand Canyon, workers constructed the horseshoe-shaped walkway 50 feet back from the edge, and then slowly rolled it out over the canyon–a system used by the ancient Egyptians to build their pyramids.
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