Did you know? Length of the longest canal tunnel (Rove Tunnel in France) (7.12 km) is 2.5 thousand x Length overall of a `RS:X` windsurfing board (2.86 m)
Distance to Proxima Centauri (nearest star to the Earth) ...
A light year ...
Distance to Canopus (second brightest star in the night sky) ...
A parsec ...
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.