Did you know?
Length of the Tigris River (1,950 km) is 2 x Direct distance from Land's End to John o' Groats (970 km)
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Mass of average human (62 kg)
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.