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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 Western Sahara (2011) (7,180 km^2)
If this was a standard unit ...
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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Click here for Podcast: Andrew Elliott interviewed for New Books Network.