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Mass of lightest allowable Formula 1 racing car (incl driver excl fuel) (702 kg) is 2.5 x Mass of an adult male North American Black Bear (280 kg)
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Land used for agriculture in Benin (2011) (35,200 km^2)
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.