Did you know?
Mass of the (now retired) Concorde supersonic airliner (185,000 kg) is 25 x Mass of an old-style London bus (AEC Routemaster) (7,470 kg)
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Pop. of Rwanda (12.71million)
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.