Did you know? Length of the Rio Grande (USA, Mexico) (3,057 km) is 2.5 x Length of the Rhine River (1,233 km)
Height of a standard matchbox (13 mm)
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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.