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Pop. of Rio de Janeiro, Brazil (6.43 million people) is 2 x Pop. of Madrid, Spain (3.21 million people)
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Mass of a Block IIR GPS Satellite in orbit (1,080 kg)
"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.