Did you know? An AU (astronomical unit) (149.6 million km) is 4 thousand x Circumference of Venus (37,700 km)
Longest flight of a paper airplane (69.1 m)
/fact/longest-flight-of-a-paper-airplane
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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.