Did you know?
Mass of a half-filled sandbag as used in flood control (13.6 kg) is 5 thousand x Mass of a table tennis ball (2.7 g)
Tweet this comparison
Fastest speed attained by a wind-powered watercraft (121.2 km/h)
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.