Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 106
ut within three months no less than 5,800 tons were placed in position.There were girders weighing 40 tons, many columns of 10 and 12 tons,and cantilevers of 80 tons weight and 67 feet long. Strange to say, thatin a building of this magnitude, where such masses had to be raised 300feet into the…
Inventions
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