Did you know? Mass of Tuba (10 kg) is 2.5 x Mass of a regulation womens' shot (in the shot put athletics event) (4 kg)
Age of earliest mammoth fossils (4.8 million y)
/fact/age-of-earliest-mammoth-fossils
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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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