Did you know?
Mass of an adult male giraffe (2,500 kg) is 200 x Mass of a standard Gold Bar (`London Good Delivery`) (12.44 kg)
Tweet this comparison
Time since the end of the Cambrian geologic period (485 million y)
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.