Did you know? Altitude of the orbit of the International Space Station (400 km) is 2.5 thousand x Height of Ulm Minster, Germany (161.5 m)
Length of the Amazon River (6,990 km)
/fact/length-of-the-amazon-river
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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.