Did you know?
Mass of an adult male Hippopotamus (1,500 kg) is about as big as Mass of a large passenger car (1,500 kg)
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Energy in 1 food Calorie (kcal) (4.2 kJ)
If this was a standard unit ...
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.