Did you know?
Time since the extinction of dinosaurs (66 million y) is about as big as Time since the end of the Cretaceous geologic period (66 million y)
Tweet this comparison
Women's Olympic High Jump record (2.06 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.