Did you know? Length of the longest ski jump ever (2015) (251.5 m) is 5 x Length of an Olympic swimming pool (50 m)
Mass of world coal production (2013) (7.82 trillion kg)
/fact/mass-of-world-coal-production-2013
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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.