Did you know?
Length of the Great Sphinx of Giza (73 m) is 4 x Men's Olympic Triple Jump record (18.09 m)
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Diameter of the Earth (12,760 km)
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.