Did you know? Mass of a motorbike (200 kg) is 50 x Mass of a regulation womens' shot (in the shot put athletics event) (4 kg)
Length of the Great Wall of China (8,850 km)
/fact/length-of-the-great-wall-of-china
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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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