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Length of a Samsung Galaxy S8+ smartphone (159.5 mm) is 10 x Width of a standard 4 x 2 Lego brick (15.8 mm)
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Mass of Ganymede (moon of Jupiter) (148.2 sextillion kg)
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.