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Mass of a pickaxe (4 kg) is 500 x Mass of a Gold Sovereign (7.98 g)
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Forest in Bangladesh (2014) (16,480 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.