Did you know? Length of a basketball court (28 m) is 2.5 x Length of a London bus (11.23 m) Tweet this comparison
Circumference of Mars (21,340 km)
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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.