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Height of the Tres Hermanas waterall in Peru (914 m) is 5 x Height of the Space Needle in Seattle (184 m)
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Land used for agriculture in Eritrea (2011) (88,300 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.