Did you know? Height of Ulm Minster, Germany (161.5 m) is 4 thousand x Diameter of a regulation table tennis ball (40 mm)
Mass of Oberon (moon of Uranus) (3.01 sextillion kg)
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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.