Did you know? Mass of lightest allowable Heavyweight boxer (90.8 kg) is 2.5 x Mass of Pedal Harp (orchestral instrument) (36 kg)
Diameter of Laniakea supercluster of galaxies (4.92 sextillion km)
/fact/diameter-of-laniakea-supercluster-of-galaxies
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If this was a standard unit ...
"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.