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GDP in Vietnam (2015) (572 billion USD p/a) is 4 x GDP in Tanzania (2015) (143.3 billion USD p/a)
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Mass of SpaceX Falcon 9 launch rocket (542,000 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.