Did you know? Length of the Nile River (6,850 km) is 1 thousand x Length of the Oxford-Cambridge boat race (6.8 km) Tweet this comparison

Depth of Marianas Trench (10.99 km)

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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.