Did you know?
Length of a London Underground carriage (18 m) is 4 x Length overall of a `Finn` racing dinghy (4.5 m)
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Capacity of a large domestic water butt (1,000 L)
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.