Did you know? Length of Tower Bridge over the Thames (244 m) is 4 x Length of an ice-hockey rink (61 m)
Mass of water in Ullswater (English Lake District) (223 billion kg)
/fact/mass-of-water-in-ullswater-english-lake-district
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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.