Did you know?
Height of the Space Needle in Seattle (184 m) is 200 x Height of a tennis net at the centre (914 mm)
Tweet this comparison
Pop. of Northern Mariana Islands (51,400)
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.