Did you know? Mass of water in an Olympic Swimming pool at minimum depth of 2m (2.5 million kg) is 40 x Mass of an M1 Abrams tank (62,000 kg)
Mass of a packed suitcase (maximum checked-in British Airways) (23 kg)
/fact/mass-of-a-packed-suitcase-maximum-checked-in-british-airways
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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.