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Mass of Brooklyn Bridge (13.32 million kg) is 2.5 thousand x Mass of an adult male African Elephant (5,350 kg)
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Height of the Hoover dam wall (221.4 m)
If this was a standard unit ...
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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Click here for Podcast: Andrew Elliott interviewed for New Books Network.