Did you know?
Length of a blue whale (30 m) is 2 x Width of a typical Hot Air Balloon (15 m)
Tweet this comparison
Wingspan of an Airbus A380 (79.8 m)
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.