Did you know? Mass of Pedal Harp (orchestral instrument) (36 kg) is 5 x Mass of a regulation mens' shot (in the shot put athletics event) (7.26 kg)
Height of a typical Hot Air Balloon (24 m)
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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.