Did you know?
Time since the end of the Precambrian supereon, explosion of life forms (541 million y) is 20 thousand x Time since first domestication of dogs (27,000 y)
Tweet this comparison
Mass of an iPhone 6 (170 g)
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.