Did you know?
Width of a tennis court (8.23 m) is 25 x Distance a flea can jump (330 mm)
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Land Area of Yemen (528,000 km^2)
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.