Did you know?
Length of the Rio Grande (USA, Mexico) (3,057 km) is 10 x Length of the British Grand Prix Formula 1 motor race (306.3 km)
Tweet this comparison
Other land in Norfolk Island (2011) (22.86 km^2)
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.