Did you know?
Time since first domestication of horses (5,500 y) is 10 x Time since the birth of Copernicus (548 y)
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Height of a typical Hot Air Balloon (24 m)
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.