Did you know? Mass of the heaviest allowable Curling stone (20 kg) is 5 x Mass of a regulation womens' shot (in the shot put athletics event) (4 kg)
Top speed of a Blue Whale (50 km/h)
/fact/top-speed-of-a-blue-whale
Link
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.