Up and over.
Technically it's ancient technology. But now the two-millenia-old-principle of the Greek mathematician Archimedes has been deployed at gargantuan scale. The Three Gorges Dam, China's marvel on the Yangtze River, is one of the world's largest engineering projects -- the product of 37...
| Foilsithe in: | National geographic. 231, 3 (2017 (Mr)). |
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| Príomhchruthaitheoir: | |
| Formáid: | Alt |
| Teanga: | English |
| Ábhair: |