Did you know? Number of seats in Hammersmith Apollo music venue (London) (3,630 ) is 10 x Number of ways a travelling salesman can visit six towns (and return home) (360 )
Diameter of the observable universe (880 sextillion km)
/fact/diameter-of-the-observable-universe
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"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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Click here for Podcast: Andrew Elliott interviewed for New Books Network.