Did you know? Mass of the heaviest allowable Curling stone (20 kg) is 2 x Mass of a large watermelon (10 kg)
Mass of United States Postal service maximum parcel weight ...
Mass of an ostrich (approx) ...
Mass of a case of 12 bottles of wine ...
Mass of a large watermelon ...
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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