Did you know?
Mass of world gold production (2014) (2.99 million kg) is 2.5 x Mass of the biggest Redwood tree (1.2 million kg)
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Height of Sydney Opera House (65 m)
If this was a standard unit ...
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.