Did you know?
Time since first transatlantic wireless communication (119 y) is 4 x Period of Saturn's orbit (29.5 y)
Tweet this comparison
Estimated world population of Thomson's Gazelle (550,000 individuals)
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.