Did you know?
Mass of an iPhone 6 (170 g) is 2.5 x Mass of a medium-sized apple (fruit) (68 g)
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Length of the Siberian Yenisei River (5,540 km)
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.