Did you know?
Mass of Double Bass (10 kg) is 2.5 x Mass of a pickaxe (4 kg)
Tweet this comparison
Circumference of Uranus (159,300 km)
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.