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Mass of world gold production (2014) (2.99 million kg) is 2 thousand x Mass of an adult male Hippopotamus (1,500 kg)
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Number of games played in longest-ever tennis match between Isner and Mahut (2010) (183 )
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"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.