Did you know? Mass of a regulation mens' shot (in the shot put athletics event) (7.26 kg) is 2.5 x Mass of a brick (2.9 kg)
Length of the Rio Grande (USA, Mexico) (3,057 km)
/fact/length-of-the-rio-grande-usa-mexico
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If this was a standard unit ...
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.