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Age of earliest mammoth fossils (4.8 million y) is 2 thousand x Time since the birth of Euclid (2,382 y)
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Diameter of Neptune (49,200 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.