Did you know? Duration of Roman Empire (503 y) is 250 x Lifespan of rat (2 y)
Mass of water in Lake Geneva (89 trillion kg)
/fact/mass-of-water-in-lake-geneva
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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.