Did you know?
A light year (9.46 trillion km) is 4 thousand x Diameter of the star UY Scuti, largest known star (2.377 billion km)
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Estimated world population of Cattle (1.5 billion individuals)
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.