Did you know?
Pop. of Dar es Salaam, Tanzania (4.37 million people) is 20 x Number of grains of sugar in a cup (220,000 )
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Top speed of a Thomson's gazelle (65 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.