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GDP in World (2015) (119.5 trillion USD p/a) is 40 x GDP in Indonesia (2017) (2.971 trillion USD p/a)
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Mass of Ganymede (moon of Jupiter) (148.2 sextillion kg)
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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.