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Mass of a mature thoroughbred racehorse (570 kg) is 25 x Mass of a packed suitcase (maximum checked-in British Airways) (23 kg)
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Energy released by metabolising a 50g poached egg (308 kJ)
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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