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Distance from the Earth to the Moon (384,000 km) is 25 x Circumference of Mercury (15,330 km)
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Pop. of Xiamen, China (3.53 million people)
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.