Did you know?
Length of Tiananmen square in Beijing (880 m) is 200 x Length of a Jaguar E-type coupe (4.43 m)
Tweet this comparison
Top speed of a pigeon (149 km/h)
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.