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A Fascination with Failure: Death On The Dancefloor (Classic)
Cautionary Tales with Tim Harford
The Death of the Sky Walks
The original drawings for the sky walks showed both of them suspended from the same long rods. The fourth floor sky walk was supported by nuts halfway up each rod, and the second floor skywalk was fixed by nuts at the bottom of the same rods. But that is not what was built. Instead of two walkways hanging from the same set of rods, now the upper walkway was supporting its own weight and the lower one too. For a year, the steel strained under double the intended weight, absolutely at the limit. Any weaker, and they would have collapsed during construction.
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