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Height of the Victoria Falls (Mosi-oa-Tunya) between Zambia and Zimbabwe (108 m) is 2 thousand x Width of a credit card (54 mm)
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Other land in Bosnia and Herzegovina (2011) (1.5 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.