Did you know? Mass of a half-filled sandbag as used in flood control (13.6 kg) is 10 x Mass of an average human brain (1.35 kg)
Number of stars in the Triangulum galaxy (40bn )
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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.